wrong_submission_id
stringlengths
10
10
problem_id
stringlengths
6
6
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stringlengths
10
10
time_limit
float64
1k
8k
memory_limit
float64
131k
1.05M
wrong_status
stringclasses
2 values
wrong_cpu_time
float64
10
40k
wrong_memory
float64
2.94k
3.37M
wrong_code_size
int64
1
15.5k
problem_description
stringlengths
1
4.75k
wrong_code
stringlengths
1
6.92k
acc_submission_id
stringlengths
10
10
acc_status
stringclasses
1 value
acc_cpu_time
float64
10
27.8k
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float64
2.94k
960k
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int64
19
14.9k
acc_code
stringlengths
19
14.9k
s940426059
p03351
u910756197
2,000
1,048,576
Wrong Answer
19
2,940
142
Three people, A, B and C, are trying to communicate using transceivers. They are standing along a number line, and the coordinates of A, B and C are a, b and c (in meters), respectively. Two people can directly communicate when the distance between them is at most d meters. Determine if A and C can communicate, either directly or indirectly. Here, A and C can indirectly communicate when A and B can directly communicate and also B and C can directly communicate.
a, b, c, d = map(int, input().split(" ")) if abs(a - c) <= d or (abs(a - b) <= d and abs(b - c) <= d): print("YES") else: print("NO")
s751224308
Accepted
17
2,940
142
a, b, c, d = map(int, input().split(" ")) if abs(a - c) <= d or (abs(a - b) <= d and abs(b - c) <= d): print("Yes") else: print("No")
s262392450
p02418
u406002631
1,000
131,072
Wrong Answer
20
5,552
123
Write a program which finds a pattern $p$ in a ring shaped text $s$.
s = input() s += s print(s) key = input() print(s.find(key)) if s.find(key) != -1: print("Yes") else: print("No")
s987862896
Accepted
20
5,548
96
s = input() s += s key = input() if s.find(key) != -1: print("Yes") else: print("No")
s094315584
p04029
u568711768
2,000
262,144
Wrong Answer
17
2,940
33
There are N children in AtCoder Kindergarten. Mr. Evi will arrange the children in a line, then give 1 candy to the first child in the line, 2 candies to the second child, ..., N candies to the N-th child. How many candies will be necessary in total?
n = int(input()) print((n+1)*n/2)
s175861739
Accepted
17
2,940
54
n = int(input()) ans = n * (n + 1) / 2 print(int(ans))
s133283777
p00014
u766477342
1,000
131,072
Wrong Answer
20
7,620
126
Write a program which computes the area of a shape represented by the following three lines: $y = x^2$ $y = 0$ $x = 600$ It is clear that the area is $72000000$, if you use an integral you learn in high school. On the other hand, we can obtain an approximative area of the shape by adding up areas of many rectangles in the shape as shown in the following figure: $f(x) = x^2$ The approximative area $s$ where the width of the rectangles is $d$ is: area of rectangle where its width is $d$ and height is $f(d)$ $+$ area of rectangle where its width is $d$ and height is $f(2d)$ $+$ area of rectangle where its width is $d$ and height is $f(3d)$ $+$ ... area of rectangle where its width is $d$ and height is $f(600 - d)$ The more we decrease $d$, the higer-precision value which is close to $72000000$ we could obtain. Your program should read the integer $d$ which is a divisor of $600$, and print the area $s$.
d = int(input()) s = 0 for n in [i * d for i in range(1, 600)]: if n >= 600: break s += (n ** 2) print(s * d)
s696686277
Accepted
30
7,600
218
try: while(1): d = int(input()) s = 0 for n in [i * d for i in range(1, 600)]: if n >= 600: break s += (n ** 2) print(s * d) except: pass
s985953577
p03214
u905582793
2,525
1,048,576
Wrong Answer
17
2,940
176
Niwango-kun is an employee of Dwango Co., Ltd. One day, he is asked to generate a thumbnail from a video a user submitted. To generate a thumbnail, he needs to select a frame of the video according to the following procedure: * Get an integer N and N integers a_0, a_1, ..., a_{N-1} as inputs. N denotes the number of the frames of the video, and each a_i denotes the representation of the i-th frame of the video. * Select t-th frame whose representation a_t is nearest to the average of all frame representations. * If there are multiple such frames, select the frame with the smallest index. Find the index t of the frame he should select to generate a thumbnail.
n = int(input()) a = list(map(int,input().split())) avg = sum(a)/n difmin = 10**18 for i in range(n): if difmin>abs(a[i]-avg): difmin = abs(a[i]-avg) ans = i print(i)
s076783181
Accepted
17
2,940
179
n = int(input()) a = list(map(int,input().split())) avg = sum(a)/n difmin = 10**18 for i in range(n): if difmin>abs(a[i]-avg): difmin = abs(a[i]-avg) ans = i print(ans)
s805738098
p02619
u312078744
2,000
1,048,576
Wrong Answer
125
27,396
571
Let's first write a program to calculate the score from a pair of input and output. You can know the total score by submitting your solution, or an official program to calculate a score is often provided for local evaluation as in this contest. Nevertheless, writing a score calculator by yourself is still useful to check your understanding of the problem specification. Moreover, the source code of the score calculator can often be reused for solving the problem or debugging your solution. So it is worthwhile to write a score calculator unless it is very complicated.
import sys import numpy as np from operator import mul read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines d = int(readline()) c = list(map(int, readline().split())) s = [] for _ in range(d): add = list(map(int, readline().split())) s.append(add) #t = [0] * d day = 0 satisfy = 0 sumC = sum(c) count = np.zeros(26) for i in range(d): t = int(readline()) - 1 up = s[day][t] count += 1 count[t] = 0 sub = map(mul, count, c) satisfy += (up - sum(sub)) # satisfy print(satisfy)
s658128953
Accepted
118
27,072
588
import sys import numpy as np from operator import mul read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines d = int(readline()) c = list(map(int, readline().split())) s = [] for _ in range(d): add = list(map(int, readline().split())) s.append(add) #t = [0] * d day = 0 satisfy = 0 sumC = sum(c) count = np.zeros(26) for i in range(d): t = int(readline()) - 1 up = s[day][t] count += 1 count[t] = 0 sub = map(mul, count, c) satisfy += (up - sum(sub)) # satisfy print(int(satisfy)) day += 1
s367163199
p03469
u204260373
2,000
262,144
Wrong Answer
17
2,940
43
On some day in January 2018, Takaki is writing a document. The document has a column where the current date is written in `yyyy/mm/dd` format. For example, January 23, 2018 should be written as `2018/01/23`. After finishing the document, she noticed that she had mistakenly wrote `2017` at the beginning of the date column. Write a program that, when the string that Takaki wrote in the date column, S, is given as input, modifies the first four characters in S to `2018` and prints it.
y,m,d=input().split("/") print("2018/01"+d)
s919238332
Accepted
18
3,064
45
y,m,d=input().split("/") print("2018/01/"+d)
s805648337
p02606
u161134623
2,000
1,048,576
Wrong Answer
29
9,088
108
How many multiples of d are there among the integers between L and R (inclusive)?
c = 0 L, R, d = map(int, input().split()) for i in range(L, R+1): if i % d == 0: c += 1 print(d)
s533372784
Accepted
25
9,088
108
c = 0 L, R, d = map(int, input().split()) for i in range(L, R+1): if i % d == 0: c += 1 print(c)
s104373603
p03719
u240793404
2,000
262,144
Wrong Answer
17
2,940
66
You are given three integers A, B and C. Determine whether C is not less than A and not greater than B.
a,b,c = map(int,input().split()) print("YES" if a<=c<=b else "NO")
s211248919
Accepted
17
2,940
66
a,b,c = map(int,input().split()) print("Yes" if a<=c<=b else "No")
s961302634
p03993
u965436898
2,000
262,144
Wrong Answer
2,104
14,008
413
There are N rabbits, numbered 1 through N. The i-th (1≤i≤N) rabbit likes rabbit a_i. Note that no rabbit can like itself, that is, a_i≠i. For a pair of rabbits i and j (i<j), we call the pair (i,j) a _friendly pair_ if the following condition is met. * Rabbit i likes rabbit j and rabbit j likes rabbit i. Calculate the number of the friendly pairs.
n = int(input()) a = list(map(int,input().split())) pre = 0 num = 0 ans = [] for i in range(n): if num >= n: break p1 = a[num] p1_v2 = a[a[a[num] - 1] - 1] p2 = a[a[num] - 1] if p1 == p1_v2 and not [p1,p2] in ans: print(a[num]) #print(a[a[a[num]-1]-1]) print(p2) ans.append([p1,p2]) ans.append([p2,p1]) num += 2 #n -= 1 else: num += 1 print(len(ans)//2)
s474448274
Accepted
66
14,008
144
n = int(input()) a = list(map(int,input().split())) ans = 0 for key_i, i in enumerate(a): if a[i - 1] == key_i + 1: ans += 1 print(ans//2)
s980408216
p02396
u602702913
1,000
131,072
Wrong Answer
20
5,592
124
In the online judge system, a judge file may include multiple datasets to check whether the submitted program outputs a correct answer for each test case. This task is to practice solving a problem with multiple datasets. Write a program which reads an integer x and print it as is. Note that multiple datasets are given for this problem.
x=list(map(int,input())) for n in x: i=1 if n==0: break else: print("Case",i,":",n) i=i+1
s897139509
Accepted
140
7,652
133
i=1 while True: a=int(input()) if 1<=a<=10000: print("Case"+" "+str(i)+":"+" "+str(a)) i+=1 else: break
s814007725
p02645
u642341748
2,000
1,048,576
Wrong Answer
22
9,056
35
When you asked some guy in your class his name, he called himself S, where S is a string of length between 3 and 20 (inclusive) consisting of lowercase English letters. You have decided to choose some three consecutive characters from S and make it his nickname. Print a string that is a valid nickname for him.
S = input() S = str() print(S[:3])
s618830103
Accepted
25
9,024
29
S = str(input()) print(S[:3])
s139995348
p03139
u220870679
2,000
1,048,576
Wrong Answer
17
2,940
63
We conducted a survey on newspaper subscriptions. More specifically, we asked each of the N respondents the following two questions: * Question 1: Are you subscribing to Newspaper X? * Question 2: Are you subscribing to Newspaper Y? As the result, A respondents answered "yes" to Question 1, and B respondents answered "yes" to Question 2. What are the maximum possible number and the minimum possible number of respondents subscribing to both newspapers X and Y? Write a program to answer this question.
n, a, b = map(int, input().split()) print(min(a, b), (a+b) - n)
s904756562
Accepted
17
2,940
99
n, a, b = map(int, input().split()) if n > a+b: x = 0 else: x = a+b - n print(min(a, b), x)
s824569498
p03455
u798316285
2,000
262,144
Wrong Answer
17
2,940
61
AtCoDeer the deer found two positive integers, a and b. Determine whether the product of a and b is even or odd.
print("Even" if eval(input().replace(" ","*"))==0 else "Odd")
s093340926
Accepted
19
2,940
63
print("Even" if eval(input().replace(" ","*"))%2==0 else "Odd")
s338604536
p03457
u009219947
2,000
262,144
Wrong Answer
455
3,064
429
AtCoDeer the deer is going on a trip in a two-dimensional plane. In his plan, he will depart from point (0, 0) at time 0, then for each i between 1 and N (inclusive), he will visit point (x_i,y_i) at time t_i. If AtCoDeer is at point (x, y) at time t, he can be at one of the following points at time t+1: (x+1,y), (x-1,y), (x,y+1) and (x,y-1). Note that **he cannot stay at his place**. Determine whether he can carry out his plan.
N = int(input()) s_x = 0 s_y = 0 s_t = 0 travel_flag = True def judge_ok(d_p, d_t): if d_p > d_t: return False if d_p % 2 != d_t % 2: return False return False for n in range(N): n_t, n_x, n_y = list(map(lambda x:int(x), input().split(" "))) if not judge_ok(n_x - s_x + n_y - s_y, n_t - s_t): travel_flag = False s_x = n_x s_y = n_y s_t = n_t if travel_flag: print("Yes") else: print("No")
s218745055
Accepted
461
3,064
438
N = int(input()) s_x = 0 s_y = 0 s_t = 0 travel_flag = True def judge_ok(d_p, d_t): if d_p > d_t: return False if d_p % 2 != d_t % 2: return False return True for n in range(N): n_t, n_x, n_y = list(map(lambda x:int(x), input().split(" "))) if not judge_ok(abs(n_x - s_x) + abs(n_y - s_y), n_t - s_t): travel_flag = False s_x = n_x s_y = n_y s_t = n_t if travel_flag: print("Yes") else: print("No")
s469460419
p03574
u041075929
2,000
262,144
Wrong Answer
43
3,572
851
You are given an H × W grid. The squares in the grid are described by H strings, S_1,...,S_H. The j-th character in the string S_i corresponds to the square at the i-th row from the top and j-th column from the left (1 \leq i \leq H,1 \leq j \leq W). `.` stands for an empty square, and `#` stands for a square containing a bomb. Dolphin is interested in how many bomb squares are horizontally, vertically or diagonally adjacent to each empty square. (Below, we will simply say "adjacent" for this meaning. For each square, there are at most eight adjacent squares.) He decides to replace each `.` in our H strings with a digit that represents the number of bomb squares adjacent to the corresponding empty square. Print the strings after the process.
import sys, os f = lambda:list(map(int,input().split())) if 'local' in os.environ : sys.stdin = open('./input.txt', 'r') def solve(): h, w = f() s = [input() for i in range(h)] d = [[0]*w for i in range(h)] print(s) for i in range(h): for j in range(w): if s[i][j] == '.': cnt = 0 for x in range(-1,2): for y in range(-1,2): if i+x in range(h) and j+y in range(w): if s[i+x][j+y] == '#': cnt+=1 d[i][j] = str(cnt) for i in range(h): for j in range(w): if s[i][j] == '.': print(d[i][j], end = '' if j!=w-1 else '\n') else: print(s[i][j], end = '' if j!=w-1 else '\n') solve()
s170702633
Accepted
42
3,444
833
import sys, os f = lambda:list(map(int,input().split())) if 'local' in os.environ : sys.stdin = open('./input.txt', 'r') def solve(): h, w = f() s = [input() for i in range(h)] d = [[0]*w for i in range(h)] for i in range(h): for j in range(w): if s[i][j] == '.': cnt = 0 for x in range(-1,2): for y in range(-1,2): if i+x in range(h) and j+y in range(w): if s[i+x][j+y] == '#': cnt+=1 d[i][j] = cnt for i in range(h): for j in range(w): if s[i][j] == '.': print(d[i][j], end = '' if j!=w-1 else '\n') else: print(s[i][j], end = '' if j!=w-1 else '\n') solve()
s382885884
p03644
u488934106
2,000
262,144
Time Limit Exceeded
2,104
3,060
342
Takahashi loves numbers divisible by 2. You are given a positive integer N. Among the integers between 1 and N (inclusive), find the one that can be divisible by 2 for the most number of times. The solution is always unique. Here, the number of times an integer can be divisible by 2, is how many times the integer can be divided by 2 without remainder. For example, * 6 can be divided by 2 once: 6 -> 3. * 8 can be divided by 2 three times: 8 -> 4 -> 2 -> 1. * 3 can be divided by 2 zero times.
def breaknumbeer(n): ans = 0 maxcount = 0 for i in range(n): count = 0 w = i while w % 2 == 0: w = w / 2 count += 1 if count >= maxcount: ans = i return ans def main(): n = int(input()) print(breaknumbeer(n)) if __name__ == '__main__': main()
s426768943
Accepted
17
2,940
196
def breaknumbeer(n): ans = 1 while ans <= n: ans *= 2 return int(ans / 2) def main(): n = int(input()) print(breaknumbeer(n)) if __name__ == '__main__': main()
s404009309
p03545
u627981695
2,000
262,144
Wrong Answer
17
3,060
242
Sitting in a station waiting room, Joisino is gazing at her train ticket. The ticket is numbered with four digits A, B, C and D in this order, each between 0 and 9 (inclusive). In the formula A op1 B op2 C op3 D = 7, replace each of the symbols op1, op2 and op3 with `+` or `-` so that the formula holds. The given input guarantees that there is a solution. If there are multiple solutions, any of them will be accepted.
S = input() for i in range(1 << len(S)-1): f = '' for j in range(len(S)-1): f += S[j] if (i >> j) & 1 == 1: f += '+' else: f += '-' f += S[-1] if eval(f) == 7: print(f)
s787011164
Accepted
17
3,060
276
S = input() for i in range(1 << len(S)-1): f = '' for j in range(len(S)-1): f += S[j] if (i >> j) & 1: f += '+' else: f += '-' f += S[-1] if eval(f) == 7: ans = f + '=7' print(ans) break
s876031059
p03644
u445380615
2,000
262,144
Time Limit Exceeded
2,107
2,940
213
Takahashi loves numbers divisible by 2. You are given a positive integer N. Among the integers between 1 and N (inclusive), find the one that can be divisible by 2 for the most number of times. The solution is always unique. Here, the number of times an integer can be divisible by 2, is how many times the integer can be divided by 2 without remainder. For example, * 6 can be divided by 2 once: 6 -> 3. * 8 can be divided by 2 three times: 8 -> 4 -> 2 -> 1. * 3 can be divided by 2 zero times.
suuji = int(input()) cntmax = 0 dst = 1 for i in range(suuji): suu = i cnt = 0 while suu % 2 == 0: suu /= 2 cnt += 1 if cntmax < cnt: cntmax = cnt dst = i print(dst)
s118804979
Accepted
18
3,060
365
suuji = int(input()) srclist = [1, 2, 4, 8, 16, 32, 64, 128] dst = 0 for i in range(len(srclist)): if srclist[i] > suuji: break print(srclist[i-1]) cntmax = 0 dst = 1 for i in range(suuji): for cnt in range(1, 1000): bit = 2**cnt-1 if i & bit != 0: break if cntmax < cnt - 1: cntmax = cnt - 1 dst = i
s542856058
p02743
u875028418
2,000
1,048,576
Wrong Answer
17
2,940
77
Does \sqrt{a} + \sqrt{b} < \sqrt{c} hold?
a,b,c=map(int,input().split()) print("yes" if a**0.5+b**0.5<c**0.5 else "no")
s220777409
Accepted
18
2,940
86
a,b,c=map(int,input().split()) print("Yes" if c-a-b>0 and 4*a*b<(a+b-c)**2 else "No")
s064570457
p03860
u821432765
2,000
262,144
Wrong Answer
20
2,940
45
Snuke is going to open a contest named "AtCoder s Contest". Here, s is a string of length 1 or greater, where the first character is an uppercase English letter, and the second and subsequent characters are lowercase English letters. Snuke has decided to abbreviate the name of the contest as "AxC". Here, x is the uppercase English letter at the beginning of s. Given the name of the contest, print the abbreviation of the name.
_, s, _ = input().split() print(s[0].upper())
s686403809
Accepted
17
2,940
54
_, s, _ = input().split() print("A"+s[0].upper()+"C")
s813439165
p03370
u767664985
2,000
262,144
Wrong Answer
17
3,064
116
Akaki, a patissier, can make N kinds of doughnut using only a certain powder called "Okashi no Moto" (literally "material of pastry", simply called Moto below) as ingredient. These doughnuts are called Doughnut 1, Doughnut 2, ..., Doughnut N. In order to make one Doughnut i (1 ≤ i ≤ N), she needs to consume m_i grams of Moto. She cannot make a non-integer number of doughnuts, such as 0.5 doughnuts. Now, she has X grams of Moto. She decides to make as many doughnuts as possible for a party tonight. However, since the tastes of the guests differ, she will obey the following condition: * For each of the N kinds of doughnuts, make at least one doughnut of that kind. At most how many doughnuts can be made here? She does not necessarily need to consume all of her Moto. Also, under the constraints of this problem, it is always possible to obey the condition.
N, X = map(int, input().split()) m = [int(input()) for _ in range(N)] ans = ((X - sum(m)) // min(m)) + 1 print(ans)
s314266217
Accepted
18
2,940
121
N, X = map(int, input().split()) m = [int(input()) for _ in range(N)] ans = ((X - sum(m)) // min(m)) + len(m) print(ans)
s364180120
p04011
u118642796
2,000
262,144
Wrong Answer
19
2,940
155
There is a hotel with the following accommodation fee: * X yen (the currency of Japan) per night, for the first K nights * Y yen per night, for the (K+1)-th and subsequent nights Tak is staying at this hotel for N consecutive nights. Find his total accommodation fee.
N = int(input()) K = int(input()) X = int(input()) Y = int(input()) ans = 0 for i in range(1,N): if i<= K: ans += X else: ans += Y print(ans)
s372793304
Accepted
19
3,060
157
N = int(input()) K = int(input()) X = int(input()) Y = int(input()) ans = 0 for i in range(1,N+1): if i<= K: ans += X else: ans += Y print(ans)
s143784285
p04012
u587482466
2,000
262,144
Wrong Answer
29
4,188
777
Let w be a string consisting of lowercase letters. We will call w _beautiful_ if the following condition is satisfied: * Each lowercase letter of the English alphabet occurs even number of times in w. You are given the string w. Determine if w is beautiful.
# -*- coding: utf-8 -*- import itertools import sys import math from functools import lru_cache # n = int(input()) from queue import Queue from operator import mul from functools import reduce from queue import Queue from operator import mul from functools import reduce from functools import lru_cache input = sys.stdin.readline # a, b, c = list(map(int, input().split())) # n = int(input()) # b = list(map(int, input().split())) # t, d = input().split() s=list(input()) m = {} for c in s: if c in m: m[c] = m[c] + 1 else: m[c] = 1 #print(m) for k in m: if m[k] % 2 == 1: print("No") exit(0) print("Yes")
s437314698
Accepted
29
4,188
792
# -*- coding: utf-8 -*- import itertools import sys import math from functools import lru_cache # n = int(input()) from queue import Queue from operator import mul from functools import reduce from queue import Queue from operator import mul from functools import reduce from functools import lru_cache # input = sys.stdin.readline # a, b, c = list(map(int, input().split())) # n = int(input()) # b = list(map(int, input().split())) # t, d = input().split() s = list(input()) #s = s[:-1] m = {} for c in s: if c in m: m[c] = m[c] + 1 else: m[c] = 1 # print(m) for k in m: if m[k] % 2 == 1: print("No") exit(0) print("Yes")
s997355252
p02613
u000875186
2,000
1,048,576
Wrong Answer
166
16,316
360
Takahashi is participating in a programming contest called AXC002, and he has just submitted his code to Problem A. The problem has N test cases. For each test case i (1\leq i \leq N), you are given a string S_i representing the verdict for that test case. Find the numbers of test cases for which the verdict is `AC`, `WA`, `TLE`, and `RE`, respectively. See the Output section for the output format.
x=int(input()) b=0; lst=[] acs=0 was=0 res=0 tles=0 while(b<x): new=input() lst.append(new) b+=1 for c in lst: if(c=='AC'): acs+=1 if(c=='WA'): was+=1 if(c=='RE'): res+=1 if(c=='TLE'): tles+=1 print('AC X '+str(acs)) print('WA X '+ str(was)) print('RE X ' +str(res)) print('TLE X ' +str(tles))
s903189965
Accepted
163
16,288
355
x=int(input()) b=0; lst=[] acs=0 was=0 res=0 tles=0 while(b<x): new=input() lst.append(new) b+=1 for c in lst: if(c=='AC'): acs+=1 if(c=='WA'): was+=1 if(c=='RE'): res+=1 if(c=='TLE'): tles+=1 print('AC x '+str(acs)) print('WA x '+ str(was)) print('TLE x ' +str(tles)) print('RE x ' +str(res))
s682924003
p03485
u075303794
2,000
262,144
Wrong Answer
17
2,940
90
You are given two positive integers a and b. Let x be the average of a and b. Print x rounded up to the nearest integer.
a,b = map(int, input().split()) if a+b%2 == 0: print((a+b)//2) else: print((a+b)//2+1)
s236651287
Accepted
17
2,940
92
a,b = map(int, input().split()) if (a+b)%2 == 0: print((a+b)//2) else: print((a+b)//2+1)
s525920097
p03713
u393512980
2,000
262,144
Wrong Answer
18
2,940
89
There is a bar of chocolate with a height of H blocks and a width of W blocks. Snuke is dividing this bar into exactly three pieces. He can only cut the bar along borders of blocks, and the shape of each piece must be a rectangle. Snuke is trying to divide the bar as evenly as possible. More specifically, he is trying to minimize S_{max} \- S_{min}, where S_{max} is the area (the number of blocks contained) of the largest piece, and S_{min} is the area of the smallest piece. Find the minimum possible value of S_{max} - S_{min}.
h,w=map(int,input().split()) if h%3==0 or w%3==0: print(h*w//3) else: print(min(h,w))
s316004928
Accepted
233
3,064
444
H, W = map(int, input().split()) if H % 3 == 0 or W % 3 == 0: print(0) else: ans = min(H, W) for h in range(1, H): y = (H - h) * W x = h * (W // 2) z = h * W - x ans = min(ans, max(x, y, z) - min(x, y, z)) t = H H = W W = t for h in range(1, H): y = (H - h) * W x = h * (W // 2) z = h * W - x ans = min(ans, max(x, y, z) - min(x, y, z)) print(ans)
s579644820
p02659
u886545507
2,000
1,048,576
Wrong Answer
23
9,116
85
Compute A \times B, truncate its fractional part, and print the result as an integer.
#abc169c a,b=map(str,input().split()) a=int(a) b=float(b) print(a,b) print(int(a*b))
s708615917
Accepted
23
9,156
85
#abc169c a,b=map(str,input().split()) a=int(a) b=round(100*float(b)) print(a*b//100)
s653119788
p03943
u733337827
2,000
262,144
Wrong Answer
17
2,940
90
Two students of AtCoder Kindergarten are fighting over candy packs. There are three candy packs, each of which contains a, b, and c candies, respectively. Teacher Evi is trying to distribute the packs between the two students so that each student gets the same number of candies. Determine whether it is possible. Note that Evi cannot take candies out of the packs, and the whole contents of each pack must be given to one of the students.
C = list(map(int, input().split())) m = max(C) s = sum(C) - m print(['NO', 'YES'][m == s])
s400314589
Accepted
17
2,940
76
l, m, h = sorted(map(int, input().split())) print(['No', 'Yes'][h == (l+m)])
s208039023
p03377
u604655161
2,000
262,144
Wrong Answer
17
2,940
177
There are a total of A + B cats and dogs. Among them, A are known to be cats, but the remaining B are not known to be either cats or dogs. Determine if it is possible that there are exactly X cats among these A + B animals.
def ABC_94_A(): A,B,X = map(int, input().split()) if A+B>=X and A<=X: print('Yes') else: print('No') if __name__ == '__main__': ABC_94_A()
s620392315
Accepted
17
2,940
177
def ABC_94_A(): A,B,X = map(int, input().split()) if A+B>=X and A<=X: print('YES') else: print('NO') if __name__ == '__main__': ABC_94_A()
s255912397
p02606
u592826944
2,000
1,048,576
Wrong Answer
33
9,544
582
How many multiples of d are there among the integers between L and R (inclusive)?
# Coding is about expressing your feeling, and # there is always a better way to express your feeling_feelme import sys import math # sys.stdin=open('input.txt','r') # sys.stdout=open('output2.txt','w') from sys import stdin,stdout from collections import deque,defaultdict from math import ceil,floor,inf,sqrt,factorial,gcd,log2 from copy import deepcopy ii1=lambda:int(stdin.readline().strip()) is1=lambda:stdin.readline().strip() iia=lambda:list(map(int,stdin.readline().strip().split())) isa=lambda:stdin.readline().strip().split() mod=int(1e9 + 7) l,r,d=iia() print((r-l)//d)
s810217750
Accepted
37
9,560
642
# Coding is about expressing your feeling, and # there is always a better way to express your feeling_feelme import sys import math # sys.stdin=open('input.txt','r') # sys.stdout=open('output2.txt','w') from sys import stdin,stdout from collections import deque,defaultdict from math import ceil,floor,inf,sqrt,factorial,gcd,log2 from copy import deepcopy ii1=lambda:int(stdin.readline().strip()) is1=lambda:stdin.readline().strip() iia=lambda:list(map(int,stdin.readline().strip().split())) isa=lambda:stdin.readline().strip().split() mod=int(1e9 + 7) l,r,d=iia() count=0 for i in range(l,r+1): if i%d==0: count+=1 print(count)
s613681428
p03679
u455696302
2,000
262,144
Wrong Answer
17
2,940
134
Takahashi has a strong stomach. He never gets a stomachache from eating something whose "best-by" date is at most X days earlier. He gets a stomachache if the "best-by" date of the food is X+1 or more days earlier, though. Other than that, he finds the food delicious if he eats it not later than the "best-by" date. Otherwise, he does not find it delicious. Takahashi bought some food A days before the "best-by" date, and ate it B days after he bought it. Write a program that outputs `delicious` if he found it delicious, `safe` if he did not found it delicious but did not get a stomachache either, and `dangerous` if he got a stomachache.
X,A,B = map(int,input().split()) if A - B > 0: print('delicious') elif A - B > X: print('safe') else: print('dangerous')
s665314594
Accepted
17
2,940
135
X,A,B = map(int,input().split()) if A - B >= 0: print('delicious') elif B - A <= X: print('safe') else: print('dangerous')
s971488989
p03377
u859897687
2,000
262,144
Wrong Answer
17
2,940
77
There are a total of A + B cats and dogs. Among them, A are known to be cats, but the remaining B are not known to be either cats or dogs. Determine if it is possible that there are exactly X cats among these A + B animals.
a,b,c=map(int,input().split()) if a<=b<=c: print('YES') else: print('NO')
s996533091
Accepted
17
2,940
79
a,b,c=map(int,input().split()) if a<=c<=a+b: print('YES') else: print('NO')
s941016651
p02608
u525090128
2,000
1,048,576
Wrong Answer
2,206
8,892
303
Let f(n) be the number of triples of integers (x,y,z) that satisfy both of the following conditions: * 1 \leq x,y,z * x^2 + y^2 + z^2 + xy + yz + zx = n Given an integer N, find each of f(1),f(2),f(3),\ldots,f(N).
import math N = int(input()) for n in range(1,N): r_n = math.floor(math.sqrt(N)) count = 0 for x in range(1,r_n): for y in range(1,r_n): for z in range(1,r_n): if (x*x + y*y + z*z + x*y + y*z + z*x) == n: count+=1 print(count)
s049532869
Accepted
418
9,264
323
import math N = int(input()) ans = [0 for _ in range(10050)] r_n = math.floor(math.sqrt(N)) count = 0 for x in range(1,r_n): for y in range(1,r_n): for z in range(1,r_n): n = x*x + y*y + z*z + x*y + y*z + z*x if n < 10050: ans[n]+=1 for i in range(N): print(ans[i+1])
s525194206
p03469
u063346608
2,000
262,144
Wrong Answer
17
2,940
58
On some day in January 2018, Takaki is writing a document. The document has a column where the current date is written in `yyyy/mm/dd` format. For example, January 23, 2018 should be written as `2018/01/23`. After finishing the document, she noticed that she had mistakenly wrote `2017` at the beginning of the date column. Write a program that, when the string that Takaki wrote in the date column, S, is given as input, modifies the first four characters in S to `2018` and prints it.
S = input() answer = S[0:2] + "8" + S[4:9] print(answer)
s183062563
Accepted
17
2,940
61
S = input() answer = S[0:3] + "8" + S[4:10] print(answer)
s629867237
p03139
u616522759
2,000
1,048,576
Wrong Answer
18
2,940
144
We conducted a survey on newspaper subscriptions. More specifically, we asked each of the N respondents the following two questions: * Question 1: Are you subscribing to Newspaper X? * Question 2: Are you subscribing to Newspaper Y? As the result, A respondents answered "yes" to Question 1, and B respondents answered "yes" to Question 2. What are the maximum possible number and the minimum possible number of respondents subscribing to both newspapers X and Y? Write a program to answer this question.
N, A, B = map(int, input().split()) if A <= B: print(str(A) + ' ' + str(abs(N - A - B))) else: print(str(B) + ' ' + str(abs(N - A - B)))
s015121766
Accepted
17
2,940
71
N, A, B = map(int, input().split()) print(min(A, B), max(0, A + B - N))
s941354419
p03487
u953379577
2,000
262,144
Wrong Answer
83
22,496
216
You are given a sequence of positive integers of length N, a = (a_1, a_2, ..., a_N). Your objective is to remove some of the elements in a so that a will be a **good sequence**. Here, an sequence b is a **good sequence** when the following condition holds true: * For each element x in b, the value x occurs exactly x times in b. For example, (3, 3, 3), (4, 2, 4, 1, 4, 2, 4) and () (an empty sequence) are good sequences, while (3, 3, 3, 3) and (2, 4, 1, 4, 2) are not. Find the minimum number of elements that needs to be removed so that a will be a good sequence.
import collections as c n = int(input()) s = list(map(int,input().split())) s = c.Counter(s) ans = 1 for i in s.items(): a = i[0] b = i[1] if b<a: ans += b else: ans += b-a print(ans)
s218730713
Accepted
76
22,504
216
import collections as c n = int(input()) s = list(map(int,input().split())) s = c.Counter(s) ans = 0 for i in s.items(): a = i[0] b = i[1] if b<a: ans += b else: ans += b-a print(ans)
s655078073
p03160
u844789719
2,000
1,048,576
Wrong Answer
149
13,928
306
There are N stones, numbered 1, 2, \ldots, N. For each i (1 \leq i \leq N), the height of Stone i is h_i. There is a frog who is initially on Stone 1. He will repeat the following action some number of times to reach Stone N: * If the frog is currently on Stone i, jump to Stone i + 1 or Stone i + 2. Here, a cost of |h_i - h_j| is incurred, where j is the stone to land on. Find the minimum possible total cost incurred before the frog reaches Stone N.
N = int(input()) H = [int(_) for _ in input().split()] dp = [0, 0] dp[0] = abs(H[1] - H[0]) if N == 2: print(dp[0]) else: dp[1] = abs(H[2] - H[0]) for i in range(3, N): dp = [dp[1]] + [ min(dp[0] + abs(H[i] - H[i - 2]), dp[1] + abs(H[i] - H[i - 1])) ] print(dp)
s721825421
Accepted
145
13,928
310
N = int(input()) H = [int(_) for _ in input().split()] dp = [0, 0] dp[0] = abs(H[1] - H[0]) if N == 2: print(dp[0]) else: dp[1] = abs(H[2] - H[0]) for i in range(3, N): dp = [dp[1]] + [ min(dp[0] + abs(H[i] - H[i - 2]), dp[1] + abs(H[i] - H[i - 1])) ] print(dp[-1])
s390230600
p03567
u331464808
2,000
262,144
Wrong Answer
17
2,940
115
Snuke built an online judge to hold a programming contest. When a program is submitted to the judge, the judge returns a verdict, which is a two-character string that appears in the string S as a contiguous substring. (The judge can return any two-character substring of S.) Determine whether the judge can return the string `AC` as the verdict to a program.
s= input() t=0 for i in range(len(s)-1): if s[i:i+1]=="AC": t +=1 if t>0: print("Yes") else: print("No")
s091683935
Accepted
20
2,940
118
s= input() t=0 for i in range(len(s)-1): if s[i]+s[i+1]=="AC": t +=1 if t>0: print("Yes") else: print("No")
s551215549
p04043
u143189168
2,000
262,144
Wrong Answer
17
2,940
120
Iroha loves _Haiku_. Haiku is a short form of Japanese poetry. A Haiku consists of three phrases with 5, 7 and 5 syllables, in this order. To create a Haiku, Iroha has come up with three different phrases. These phrases have A, B and C syllables, respectively. Determine whether she can construct a Haiku by using each of the phrases once, in some order.
s = input().split() if s==['5','5','7'] or s==['5','7','5'] or s==['7','5','5']: print("OK") else: print("NO")
s992905395
Accepted
17
2,940
121
s = input().split() if s==['5','5','7'] or s==['5','7','5'] or s==['7','5','5']: print("YES") else: print("NO")
s667024820
p02694
u732870425
2,000
1,048,576
Wrong Answer
29
9,168
152
Takahashi has a deposit of 100 yen (the currency of Japan) in AtCoder Bank. The bank pays an annual interest rate of 1 % compounded annually. (A fraction of less than one yen is discarded.) Assuming that nothing other than the interest affects Takahashi's balance, in how many years does the balance reach X yen or above for the first time?
X = int(input()) ans = 0 money = 100 for i in range(10**18): money = money * 1.01 // 1 if money >= X: ans = i break print(ans)
s117714461
Accepted
30
8,880
158
X = int(input()) ans = 0 money = 100 for i in range(1, 10**18): money = (money * 101) // 100 if money >= X: ans = i break print(ans)
s460474959
p03827
u145600939
2,000
262,144
Wrong Answer
17
2,940
130
You have an integer variable x. Initially, x=0. Some person gave you a string S of length N, and using the string you performed the following operation N times. In the i-th operation, you incremented the value of x by 1 if S_i=`I`, and decremented the value of x by 1 if S_i=`D`. Find the maximum value taken by x during the operations (including before the first operation, and after the last operation).
n = int(input()) s = input() ans = 0 x = 0 for i in s: if s == 'I': x += 1 else: x -= 1 ans = max(ans,x) print(ans)
s492265766
Accepted
17
2,940
130
n = int(input()) s = input() ans = 0 x = 0 for i in s: if i == 'I': x += 1 else: x -= 1 ans = max(ans,x) print(ans)
s814581399
p04029
u925353288
2,000
262,144
Wrong Answer
23
9,088
154
There are N children in AtCoder Kindergarten. Mr. Evi will arrange the children in a line, then give 1 candy to the first child in the line, 2 candies to the second child, ..., N candies to the N-th child. How many candies will be necessary in total?
N = int(input()) # 1+2+3+4+...+(N-2)+(N-1)+N # N+(N-1)+(N-2)+...+4+3+2+1 a = N+1 b = N print( a * b / 2 )
s747649952
Accepted
26
9,132
160
N = int(input()) # 1+2+3+4+...+(N-2)+(N-1)+N # N+(N-1)+(N-2)+...+4+3+2+1 a = N+1 b = N print(int( a * b * 0.5 ))
s088465721
p03563
u759412327
2,000
262,144
Wrong Answer
17
2,940
34
Takahashi is a user of a site that hosts programming contests. When a user competes in a contest, the _rating_ of the user (not necessarily an integer) changes according to the _performance_ of the user, as follows: * Let the current rating of the user be a. * Suppose that the performance of the user in the contest is b. * Then, the new rating of the user will be the avarage of a and b. For example, if a user with rating 1 competes in a contest and gives performance 1000, his/her new rating will be 500.5, the average of 1 and 1000. Takahashi's current rating is R, and he wants his rating to be exactly G after the next contest. Find the performance required to achieve it.
print(2*int(input())-int(input()))
s383930657
Accepted
23
9,132
35
print(-int(input())+2*int(input()))
s005424386
p04044
u099566485
2,000
262,144
Wrong Answer
17
3,060
132
Iroha has a sequence of N strings S_1, S_2, ..., S_N. The length of each string is L. She will concatenate all of the strings in some order, to produce a long string. Among all strings that she can produce in this way, find the lexicographically smallest one. Here, a string s=s_1s_2s_3...s_n is _lexicographically smaller_ than another string t=t_1t_2t_3...t_m if and only if one of the following holds: * There exists an index i(1≦i≦min(n,m)), such that s_j = t_j for all indices j(1≦j<i), and s_i<t_i. * s_i = t_i for all integers i(1≦i≦min(n,m)), and n<m.
N,L=map(int,input().split()) a=[] for i in range(N): a.append(input()) a.sort s="" for i in range(len(a)): s=s+a[i] print(s)
s359857227
Accepted
17
3,060
134
N,L=map(int,input().split()) a=[] for i in range(N): a.append(input()) a.sort() s="" for i in range(len(a)): s=s+a[i] print(s)
s315641347
p03473
u914330401
2,000
262,144
Wrong Answer
17
2,940
28
How many hours do we have until New Year at M o'clock (24-hour notation) on 30th, December?
t = int(input()) print(t+24)
s286535760
Accepted
19
3,316
33
t = int(input()) print((24-t)+24)
s964628267
p03351
u883040023
2,000
1,048,576
Wrong Answer
17
2,940
98
Three people, A, B and C, are trying to communicate using transceivers. They are standing along a number line, and the coordinates of A, B and C are a, b and c (in meters), respectively. Two people can directly communicate when the distance between them is at most d meters. Determine if A and C can communicate, either directly or indirectly. Here, A and C can indirectly communicate when A and B can directly communicate and also B and C can directly communicate.
a,b,c,d = map(int,input().split()) print(["No","Yes"][abs(a-c)<=d or (abs(a-b)<d and abs(b-c)<d)])
s230449903
Accepted
17
2,940
100
a,b,c,d = map(int,input().split()) print(["No","Yes"][abs(a-c)<=d or (abs(a-b)<=d and abs(b-c)<=d)])
s901298536
p03698
u474925961
2,000
262,144
Wrong Answer
17
2,940
138
You are given a string S consisting of lowercase English letters. Determine whether all the characters in S are different.
import sys if sys.platform =='ios': sys.stdin=open('input_file.txt') S=input() if len(S)==set(S): print("yes") else: print("no")
s125282539
Accepted
17
2,940
143
import sys if sys.platform =='ios': sys.stdin=open('input_file.txt') S=input() if len(S)==len(set(S)): print("yes") else: print("no")
s924751913
p03415
u407730443
2,000
262,144
Wrong Answer
17
2,940
66
We have a 3×3 square grid, where each square contains a lowercase English letters. The letter in the square at the i-th row from the top and j-th column from the left is c_{ij}. Print the string of length 3 that can be obtained by concatenating the letters in the squares on the diagonal connecting the top-left and bottom-right corner of the grid, from the top-left to bottom-right.
c = [input() for i in range(3)] print([c[i][i] for i in range(3)])
s921234108
Accepted
17
2,940
76
c = [input() for i in range(3)] print("".join([c[i][i] for i in range(3)]))
s614462144
p03095
u474579514
2,000
1,048,576
Wrong Answer
37
3,964
724
You are given a string S of length N. Among its subsequences, count the ones such that all characters are different, modulo 10^9+7. Two subsequences are considered different if their characters come from different positions in the string, even if they are the same as strings. Here, a subsequence of a string is a concatenation of **one or more** characters from the string without changing the order.
def main(): N = int(input()) S = input() str_list = list() for s in S: str_list.append(s) str_uni_list = {} for str in str_list: if (str in str_uni_list) is False: str_uni_list[str] = 1 else: str_uni_list[str] += 1 list_val = [] for i in str_uni_list.values(): list_val.append(i) ans = 0 for i in range(len(list_val)): for j in range(i + 1, len(list_val)): for k in range(1, len(list_val) - j + 1): temp = list_val[i] for m in range(j, j + k): temp *= list_val[m] ans += temp print(N + ans) if __name__ == '__main__': main()
s360323396
Accepted
35
3,956
521
def main(): N = int(input()) S = input() str_list = list() for s in S: str_list.append(s) str_uni_list = {} for str in str_list: if (str in str_uni_list) is False: str_uni_list[str] = 1 else: str_uni_list[str] += 1 list_val = [] for i in str_uni_list.values(): list_val.append(i) rem = 1 for v in list_val: rem *= (v + 1) ans = rem - 1 print(ans % (10 ** 9 + 7)) if __name__ == '__main__': main()
s695194467
p04029
u147912476
2,000
262,144
Wrong Answer
30
9,088
57
There are N children in AtCoder Kindergarten. Mr. Evi will arrange the children in a line, then give 1 candy to the first child in the line, 2 candies to the second child, ..., N candies to the N-th child. How many candies will be necessary in total?
N=int(input('子供は何人?')) a=N*(N+1)/2 print(a)
s295916757
Accepted
26
9,056
42
N=int(input()) a=int(N*(N+1)/2) print(a)
s209312595
p03080
u268210555
2,000
1,048,576
Wrong Answer
17
2,940
99
There are N people numbered 1 to N. Each person wears a red hat or a blue hat. You are given a string s representing the colors of the people. Person i wears a red hat if s_i is `R`, and a blue hat if s_i is `B`. Determine if there are more people wearing a red hat than people wearing a blue hat.
n = int(input()) s = input() if s.count('R') > s.count('B'): print('YES') else: print('No')
s637920002
Accepted
17
2,940
99
n = int(input()) s = input() if s.count('R') > s.count('B'): print('Yes') else: print('No')
s257662308
p03739
u187205913
2,000
262,144
Wrong Answer
2,108
15,044
708
You are given an integer sequence of length N. The i-th term in the sequence is a_i. In one operation, you can select a term and either increment or decrement it by one. At least how many operations are necessary to satisfy the following conditions? * For every i (1≤i≤n), the sum of the terms from the 1-st through i-th term is not zero. * For every i (1≤i≤n-1), the sign of the sum of the terms from the 1-st through i-th term, is different from the sign of the sum of the terms from the 1-st through (i+1)-th term.
n = int(input()) a = list(map(int,input().split())) for i in range(1,n): a[i] += a[i-1] a_1 = a.copy() ans = 0 for i in range(n): if i%2==0 and a_1[i]<=0: tmp = -a_1[i]-1 for j in range(i,n): a_1[j] += tmp ans += abs(tmp) elif i%2==1 and a_1[i]>=0: tmp = -a_1[i]+1 for j in range(i,n): a_1[j] += tmp ans += abs(tmp) ans_2 = 0 for i in range(n): if i%2==1 and a[i]<=0: tmp = -a[i]+1 for j in range(i,n): a[j] += tmp ans_2 += abs(tmp) elif i%2==0 and a[i]>=0: tmp = -a[i]-1 for j in range(i,n): a[j] += tmp ans_2 += abs(tmp) print(min(ans,ans_2))
s124630672
Accepted
184
14,212
588
n = int(input()) a = list(map(int,input().split())) for i in range(1,n): a[i] += a[i-1] a_1 = a.copy() ans = 0 k = 0 for i in range(n): if i%2==0 and a_1[i]+k<=0: tmp = -a_1[i]-k+1 k += tmp ans += abs(tmp) elif i%2==1 and a_1[i]+k>=0: tmp = -a_1[i]-k-1 k += tmp ans += abs(tmp) ans_2 = 0 k = 0 for i in range(n): if i%2==1 and a[i]+k<=0: tmp = -a[i]-k+1 k += tmp ans_2 += abs(tmp) elif i%2==0 and a[i]+k>=0: tmp = -a[i]-k-1 k += tmp ans_2 += abs(tmp) print(min(ans,ans_2))
s516573406
p03795
u419963262
2,000
262,144
Wrong Answer
17
2,940
91
Snuke has a favorite restaurant. The price of any meal served at the restaurant is 800 yen (the currency of Japan), and each time a customer orders 15 meals, the restaurant pays 200 yen back to the customer. So far, Snuke has ordered N meals at the restaurant. Let the amount of money Snuke has paid to the restaurant be x yen, and let the amount of money the restaurant has paid back to Snuke be y yen. Find x-y.
N=int(input()) ans=1 for i in range(1,N+1): ans=(ans*i)%1000000007 print(ans%(10**9+7))
s747185307
Accepted
17
2,940
44
N=int(input()) print(int(N*800-(N//15*200)))
s803132955
p02612
u035445296
2,000
1,048,576
Wrong Answer
28
9,132
24
We will buy a product for N yen (the currency of Japan) at a shop. If we use only 1000-yen bills to pay the price, how much change will we receive? Assume we use the minimum number of bills required.
print(int(input())%1000)
s790713442
Accepted
26
9,132
68
n = int(input()) print(0 if n%1000 == 0 else 1000*((n//1000)+1) - n)
s520306760
p03693
u815797488
2,000
262,144
Wrong Answer
17
2,940
98
AtCoDeer has three cards, one red, one green and one blue. An integer between 1 and 9 (inclusive) is written on each card: r on the red card, g on the green card and b on the blue card. We will arrange the cards in the order red, green and blue from left to right, and read them as a three-digit integer. Is this integer a multiple of 4?
r,g,b = map(int, input().split()) A = g * 10 + b if A % 4 == 0: print("yes") else: print("No")
s651271097
Accepted
17
2,940
98
r,g,b = map(int, input().split()) A = g * 10 + b if A % 4 == 0: print("YES") else: print("NO")
s168453355
p03855
u724687935
2,000
262,144
Wrong Answer
2,108
10,044
945
There are N cities. There are also K roads and L railways, extending between the cities. The i-th road bidirectionally connects the p_i-th and q_i-th cities, and the i-th railway bidirectionally connects the r_i-th and s_i-th cities. No two roads connect the same pair of cities. Similarly, no two railways connect the same pair of cities. We will say city A and B are _connected by roads_ if city B is reachable from city A by traversing some number of roads. Here, any city is considered to be connected to itself by roads. We will also define _connectivity by railways_ similarly. For each city, find the number of the cities connected to that city by both roads and railways.
class UnionFind(): def __init__(self, n): self.parents = [-1] * n def find(self, x): if self.parents[x] < 0: return x else: self.parents[x] = self.find(self.parents[x]) return self.parents[x] def union(self, x, y): x = self.find(x) y = self.find(y) if x == y: return if self.parents[x] > self.parents[y]: x, y = y, x self.parents[x] += self.parents[y] self.parents[y] = x N, K, L = map(int, input().split()) uf = UnionFind(2 * N) for _ in range(K): p, q = map(int, input().split()) uf.union(p - 1, q - 1) for _ in range(L): r, s = map(int, input().split()) uf.union(r - 1 + N, s - 1 + N) for i in range(N): cnt = 0 for j in range(i, N): if uf.find(i) == uf.find(j) and uf.find(i + N) == uf.find(j + N): cnt += 1 print(cnt, end=' ') print('')
s723330847
Accepted
933
57,480
1,411
class UnionFind(): def __init__(self, n): self.parents = [-1] * n def find(self, x): if self.parents[x] < 0: return x else: self.parents[x] = self.find(self.parents[x]) return self.parents[x] def union(self, x, y): x = self.find(x) y = self.find(y) if x == y: return if self.parents[x] > self.parents[y]: x, y = y, x self.parents[x] += self.parents[y] self.parents[y] = x def main(): import sys from collections import Counter # readline = sys.stdin.readline readlines = sys.stdin.readlines N, K, L = map(int, input().split()) uf1 = UnionFind(N) uf2 = UnionFind(N) IN = readlines() for i in range(K): p, q = map(int, IN[i].split()) p -= 1; q -= 1 uf1.union(p, q) for j in range(K, K + L): r, s = map(int, IN[j].split()) r -= 1; s -= 1 uf2.union(r, s) # ans = [] # print(*ans) path = [] C = Counter() for i in range(N): pair = (uf1.find(i), uf2.find(i)) path.append(pair) C[pair] += 1 ans = [] for i in range(N): ans.append(C[path[i]]) print(*ans) if __name__ == "__main__": main()
s253889168
p03720
u934442292
2,000
262,144
Wrong Answer
18
2,940
169
There are N cities and M roads. The i-th road (1≤i≤M) connects two cities a_i and b_i (1≤a_i,b_i≤N) bidirectionally. There may be more than one road that connects the same pair of two cities. For each city, how many roads are connected to the city?
N, M = map(int, input().split()) ans = [0] * N for i in range(M): a, b = map(int, input().split()) ans[a - 1] += 1 ans[b - 1] += 1 for i in range(N): print(ans)
s281254618
Accepted
18
2,940
159
N, M = map(int, input().split()) ans = [0] * N for _ in range(M): a, b = map(int, input().split()) ans[a - 1] += 1 ans[b - 1] += 1 print(*ans, sep="\n")
s656701316
p03478
u698348858
2,000
262,144
Wrong Answer
33
3,060
207
Find the sum of the integers between 1 and N (inclusive), whose sum of digits written in base 10 is between A and B (inclusive).
#coding:utf-8 n, a, b = map(int, input().split(' ')) cnt = 0 for i in range(n): str_i = str(i) sum = 0 for char in str_i: sum += int(char) if sum >= a and sum <= b: cnt += 1 print(cnt)
s785249339
Accepted
34
3,060
220
#coding:utf-8 n, a, b = map(int, input().split(' ')) total = 0 for i in range(1, n + 1): str_i = str(i) sum = 0 for char in str_i: sum += int(char) if sum >= a and sum <= b: total += i print(total)
s480773146
p04043
u935477635
2,000
262,144
Wrong Answer
26
9,044
120
Iroha loves _Haiku_. Haiku is a short form of Japanese poetry. A Haiku consists of three phrases with 5, 7 and 5 syllables, in this order. To create a Haiku, Iroha has come up with three different phrases. These phrases have A, B and C syllables, respectively. Determine whether she can construct a Haiku by using each of the phrases once, in some order.
syl=sorted(list(map(int,input().split()))) print(syl) syl2=[5, 5, 7] if syl == syl2: print('YES') else: print('NO')
s239971135
Accepted
28
8,988
108
syl=sorted(list(map(int,input().split()))) syl2=[5, 5, 7] if syl == syl2: print('YES') else: print('NO')
s933469944
p03827
u331997680
2,000
262,144
Wrong Answer
17
2,940
64
You have an integer variable x. Initially, x=0. Some person gave you a string S of length N, and using the string you performed the following operation N times. In the i-th operation, you incremented the value of x by 1 if S_i=`I`, and decremented the value of x by 1 if S_i=`D`. Find the maximum value taken by x during the operations (including before the first operation, and after the last operation).
N = input() S = list(input()) print(S.count('D') + S.count('I'))
s851829936
Accepted
17
2,940
176
N = input() S = list(input()) cnt = 0 cnt_max = 0 for i in S: if i == 'I': cnt += 1 if cnt > cnt_max: cnt_max = cnt elif i == 'D': cnt -= 1 print(cnt_max)
s468939153
p02606
u032955959
2,000
1,048,576
Wrong Answer
32
9,160
59
How many multiples of d are there among the integers between L and R (inclusive)?
l,r,d=map(int,input().split()) a=l-1//d b=r//d print(b-a)
s913532742
Accepted
27
9,096
61
l,r,d=map(int,input().split()) a=(l-1)//d b=r//d print(b-a)
s495125327
p03957
u647537044
1,000
262,144
Wrong Answer
22
3,064
323
This contest is `CODEFESTIVAL`, which can be shortened to the string `CF` by deleting some characters. Mr. Takahashi, full of curiosity, wondered if he could obtain `CF` from other strings in the same way. You are given a string s consisting of uppercase English letters. Determine whether the string `CF` can be obtained from the string s by deleting some characters.
s = list(input()) offset_f = [] offset_c = [] for i in range(len(s)): if s[i] == 'F': offset_f += [i] offset_f.sort() for i in range(len(s)): if s[i] == 'C': offset_c += [i] offset_c.sort() if offset_f[-1] > offset_c[0]: print('YES') else: print('NO')
s366524097
Accepted
24
3,064
406
s = list(input()) offset_f = [] offset_c = [] for i in range(len(s)): if s[i] == 'F': offset_f += [i] offset_f.sort() for i in range(len(s)): if s[i] == 'C': offset_c += [i] offset_c.sort() if offset_f and offset_c: if offset_f[-1] > offset_c[0]: print('Yes') else: print('No') else: print('No')
s054590108
p03543
u551109821
2,000
262,144
Wrong Answer
20
3,316
224
We call a 4-digit integer with three or more consecutive same digits, such as 1118, **good**. You are given a 4-digit integer N. Answer the question: Is N **good**?
import collections N = list(input()) judge = False a = collections.Counter(N) for i in a.values(): if int(i) >= 3: print('Yes') judge = True break if judge: print('Yes') else: print('No')
s155323266
Accepted
20
3,316
264
import collections N = list(input()) cnt = 0 ans = [] for i in range(len(N)-1): if N[i] == N[i+1]: cnt += 1 else: ans.append(cnt) cnt = 0 ans.append(cnt) for i in ans: if i >= 2: print('Yes') exit() print('No')
s311915083
p03657
u375282392
2,000
262,144
Wrong Answer
17
2,940
122
Snuke is giving cookies to his three goats. He has two cookie tins. One contains A cookies, and the other contains B cookies. He can thus give A cookies, B cookies or A+B cookies to his goats (he cannot open the tins). Your task is to determine whether Snuke can give cookies to his three goats so that each of them can have the same number of cookies.
a,b=map(int,input().split()) if a % 3 != 0 and b % 3 != 0 and a+b % 3 != 0: print('Impossible') else: print('Possible')
s670670169
Accepted
17
2,940
124
a,b=map(int,input().split()) if a % 3 != 0 and b % 3 != 0 and (a+b) % 3 != 0: print('Impossible') else: print('Possible')
s628944886
p03657
u759651152
2,000
262,144
Wrong Answer
17
2,940
196
Snuke is giving cookies to his three goats. He has two cookie tins. One contains A cookies, and the other contains B cookies. He can thus give A cookies, B cookies or A+B cookies to his goats (he cannot open the tins). Your task is to determine whether Snuke can give cookies to his three goats so that each of them can have the same number of cookies.
#-*-coding:utf-8-*- def main(): a, b = map(int, input().split()) if a + b % 3 == 0: print('Possible') else: print('Impossible') if __name__ == '__main__': main()
s466893956
Accepted
17
2,940
226
#-*-coding:utf-8-*- def main(): a, b = map(int, input().split()) if (a + b) % 3 == 0 or a % 3 == 0 or b % 3 == 0: print('Possible') else: print('Impossible') if __name__ == '__main__': main()
s456267307
p03337
u488934106
2,000
1,048,576
Wrong Answer
17
2,940
183
You are given two integers A and B. Find the largest value among A+B, A-B and A \times B.
def Add_Sub_Mul(a , b): return min(a + b , a - b , a * b) def main(): a , b = map(int , input().split()) print(Add_Sub_Mul(a , b)) if __name__ == '__main__': main()
s967255442
Accepted
17
2,940
183
def Add_Sub_Mul(a , b): return max(a + b , a - b , a * b) def main(): a , b = map(int , input().split()) print(Add_Sub_Mul(a , b)) if __name__ == '__main__': main()
s670667142
p03643
u425351967
2,000
262,144
Wrong Answer
19
2,940
21
This contest, _AtCoder Beginner Contest_ , is abbreviated as _ABC_. When we refer to a specific round of ABC, a three-digit number is appended after ABC. For example, ABC680 is the 680th round of ABC. What is the abbreviation for the N-th round of ABC? Write a program to output the answer.
print("ABC", input())
s559387461
Accepted
19
2,940
21
print("ABC"+ input())
s023318951
p03612
u923659712
2,000
262,144
Time Limit Exceeded
2,104
14,008
204
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero): Operation: Swap two **adjacent** elements in the permutation. You want to have p_i ≠ i for all 1≤i≤N. Find the minimum required number of operations to achieve this.
n=int(input()) a=list(map(int,input().split())) k=0 ans=0 while k<n: if a[k]==k and a[k+1]==k: k+=2 ans+=1 elif a[k]==k and a[k+1]!=k: k+=1 ans+=1 else: pass print(ans)
s184924357
Accepted
72
14,008
181
N = int(input()) P = list(map(int,input().split())) ans = 0 for i in range(N - 1): if P[i] == i+1: P[i],P[i+1] = P[i+1],P[i] ans += 1 if P[-1] == N: ans += 1 print(ans)
s493785031
p03387
u102960641
2,000
262,144
Wrong Answer
18
2,940
151
You are given three integers A, B and C. Find the minimum number of operations required to make A, B and C all equal by repeatedly performing the following two kinds of operations in any order: * Choose two among A, B and C, then increase both by 1. * Choose one among A, B and C, then increase it by 2. It can be proved that we can always make A, B and C all equal by repeatedly performing these operations.
a, b, c = map(int, input().split()) if (a - b) % 2 == (b - c) % 2: print((a - b) // 2 + (b - c) // 2) else: print((a - b) // 2 + (b - c) // 2 + 2)
s773427197
Accepted
18
3,064
268
a, b, c = map(int, input().split()) A, B, C = sorted([a, b, c]) if (C - A) % 2 == (C - B) % 2 == 0: print((C - A) // 2 + (C - B) // 2) elif (C - A) % 2 == (C - B) % 2 == 1: print((C - A) // 2 + (C - B) // 2 + 1) else: print((C - A) // 2 + (C - B) // 2 + 2)
s671333771
p03555
u901582103
2,000
262,144
Wrong Answer
17
2,940
48
You are given a grid with 2 rows and 3 columns of squares. The color of the square at the i-th row and j-th column is represented by the character C_{ij}. Write a program that prints `YES` if this grid remains the same when rotated 180 degrees, and prints `NO` otherwise.
print('Yes' if input()==input()[::-1] else 'No')
s033317526
Accepted
17
2,940
48
print('YES' if input()==input()[::-1] else 'NO')
s288856671
p03738
u978494963
2,000
262,144
Wrong Answer
17
2,940
114
You are given two positive integers A and B. Compare the magnitudes of these numbers.
a = int(input()) b = int(input()) if a == b: print("EQUAL") elif a > b: print("LESS") else: print("GREATER")
s816139188
Accepted
17
2,940
114
a = int(input()) b = int(input()) if a == b: print("EQUAL") elif a > b: print("GREATER") else: print("LESS")
s316035589
p03471
u144072139
2,000
262,144
Wrong Answer
791
3,060
229
The commonly used bills in Japan are 10000-yen, 5000-yen and 1000-yen bills. Below, the word "bill" refers to only these. According to Aohashi, he received an otoshidama (New Year money gift) envelope from his grandfather that contained N bills for a total of Y yen, but he may be lying. Determine whether such a situation is possible, and if it is, find a possible set of bills contained in the envelope. Assume that his grandfather is rich enough, and the envelope was large enough.
N, Y = map(int,input().split()) A = B = C = -1 for a in range(N+1): for b in range(N+1-a): c=N-a-b if 10000*a+5000*b+1000*c==Y: A = a B = b C = c print(a, b, c)
s362573138
Accepted
758
3,060
229
N, Y = map(int,input().split()) A = B = C = -1 for a in range(N+1): for b in range(N+1-a): c=N-a-b if 10000*a+5000*b+1000*c==Y: A = a B = b C = c print(A, B, C)
s136414921
p02608
u961288441
2,000
1,048,576
Wrong Answer
204
9,148
288
Let f(n) be the number of triples of integers (x,y,z) that satisfy both of the following conditions: * 1 \leq x,y,z * x^2 + y^2 + z^2 + xy + yz + zx = n Given an integer N, find each of f(1),f(2),f(3),\ldots,f(N).
import math N = int(input()) ans = [0]*N for i in range(1,int(math.sqrt(N/3)+2)): for j in range(1,int(math.sqrt(N/3)+2)): for k in range(1,int(math.sqrt(N/3)+2)): if (i+j+k)**2-(i*j+j*k+k*i) <= N: ans[(i+j+k)**2-(i*j+j*k+k*i)-1] += 1 print(ans)
s716450597
Accepted
514
9,372
256
import math N = int(input()) ans = [0]*N l = int(math.sqrt(N)) for i in range(1,l): for j in range(1,l): for k in range(1,l): a = (i+j+k)**2-(i*j+j*k+k*i) if a <= N: ans[a-1] += 1 print(*ans, sep='\n')
s129282836
p04043
u996564551
2,000
262,144
Wrong Answer
17
2,940
229
Iroha loves _Haiku_. Haiku is a short form of Japanese poetry. A Haiku consists of three phrases with 5, 7 and 5 syllables, in this order. To create a Haiku, Iroha has come up with three different phrases. These phrases have A, B and C syllables, respectively. Determine whether she can construct a Haiku by using each of the phrases once, in some order.
a = [] a = input().split(' ') if 5 in a: a.remove(5) if 7 in a: a.remove(7) if 5 in a: print('OK') else: print('NO') else: print('NO') else: print('NO')
s717110247
Accepted
17
2,940
240
a = [] a = input().split(' ') if '5' in a: a.remove('5') if '7' in a: a.remove('7') if '5' in a: print('YES') else: print('NO') else: print('NO') else: print('NO')
s515516688
p02255
u627348629
1,000
131,072
Wrong Answer
20
7,580
351
Write a program of the Insertion Sort algorithm which sorts a sequence A in ascending order. The algorithm should be based on the following pseudocode: for i = 1 to A.length-1 key = A[i] /* insert A[i] into the sorted sequence A[0,...,j-1] */ j = i - 1 while j >= 0 and A[j] > key A[j+1] = A[j] j-- A[j+1] = key Note that, indices for array elements are based on 0-origin. To illustrate the algorithms, your program should trace intermediate result for each step.
n = int(input()) sequence = input().split(' ') sequence = [int(x) for x in sequence] for i in range(1, n): v = sequence[i] j = i - 1 while j >= 0 and sequence[j] > v: sequence[j+1] = sequence[j] j -= 1 sequence[j+1] = v for k in range(n-1): print(format(sequence[k]) + ' ', end='') print(sequence[n-1])
s386508254
Accepted
30
8,040
442
n = int(input()) sequence = input().split(' ') sequence = [int(x) for x in sequence] for h in range(n - 1): print(format(sequence[h]) + ' ', end='') print(sequence[n - 1]) for i in range(1, n): v = sequence[i] j = i - 1 while j >= 0 and sequence[j] > v: sequence[j+1] = sequence[j] j -= 1 sequence[j+1] = v for k in range(n-1): print(format(sequence[k]) + ' ', end='') print(sequence[n-1])
s806672289
p03162
u484315555
2,000
1,048,576
Wrong Answer
1,921
46,260
614
Taro's summer vacation starts tomorrow, and he has decided to make plans for it now. The vacation consists of N days. For each i (1 \leq i \leq N), Taro will choose one of the following activities and do it on the i-th day: * A: Swim in the sea. Gain a_i points of happiness. * B: Catch bugs in the mountains. Gain b_i points of happiness. * C: Do homework at home. Gain c_i points of happiness. As Taro gets bored easily, he cannot do the same activities for two or more consecutive days. Find the maximum possible total points of happiness that Taro gains.
import numpy as np def dprint(*args): if debug: if len(args)==1: print(args[0]) else: print(args) debug = False if debug: N=3 ABC=[[10, 40, 70], [20, 50, 80], [30, 60, 90]] else: N = int(input()) ABC=[] for i in range(N): ABC.append(list(map(int,input().split()))) print(N,ABC) # i -> 1 to N # ABC -> 012 H = np.zeros((N,3)) H[0]=ABC[0] for j in range(1,N): H[j][0]=max(H[j][0], H[j-1][1]+ABC[j][0], H[j-1][2]+ABC[j][0]) H[j][1]=max(H[j][1], H[j-1][0]+ABC[j][1], H[j-1][2]+ABC[j][1]) H[j][2]=max(H[j][2], H[j-1][0]+ABC[j][2], H[j-1][1]+ABC[j][2]) print(max(H[-1]))
s201741403
Accepted
1,867
42,704
618
import numpy as np def dprint(*args): if debug: if len(args)==1: print(args[0]) else: print(args) debug = False if debug: N=3 ABC=[[10, 40, 70], [20, 50, 80], [30, 60, 90]] else: N = int(input()) ABC=[] for i in range(N): ABC.append(list(map(int,input().split()))) dprint(N,ABC) # i -> 1 to N # ABC -> 012 H = np.zeros((N,3)) H[0]=ABC[0] for j in range(1,N): H[j][0]=max(H[j][0], H[j-1][1]+ABC[j][0], H[j-1][2]+ABC[j][0]) H[j][1]=max(H[j][1], H[j-1][0]+ABC[j][1], H[j-1][2]+ABC[j][1]) H[j][2]=max(H[j][2], H[j-1][0]+ABC[j][2], H[j-1][1]+ABC[j][2]) print(int(max(H[-1])))
s891977012
p03485
u470359972
2,000
262,144
Wrong Answer
17
2,940
47
You are given two positive integers a and b. Let x be the average of a and b. Print x rounded up to the nearest integer.
a,b=map(int,input().split()) x=(a+b)/2 print(x)
s960359750
Accepted
19
3,060
95
a,b=map(int,input().split()) x=(a+b) if x % 2 == 0: print(int(x/2)) else: print(int(x/2+1))
s057837013
p03568
u502314533
2,000
262,144
Wrong Answer
268
12,652
1,088
We will say that two integer sequences of length N, x_1, x_2, ..., x_N and y_1, y_2, ..., y_N, are _similar_ when |x_i - y_i| \leq 1 holds for all i (1 \leq i \leq N). In particular, any integer sequence is similar to itself. You are given an integer N and an integer sequence of length N, A_1, A_2, ..., A_N. How many integer sequences b_1, b_2, ..., b_N are there such that b_1, b_2, ..., b_N is similar to A and the product of all elements, b_1 b_2 ... b_N, is even?
import sys input = sys.stdin.readline print = sys.stdout.write N = int(input()) s = [int(i) for i in input().split()] def checkCorrect(l): for i in l: if i % 2 == 0: return True return False # Seen is a set of tuples seen = set() def recurse(t,max_depth,original=None,depth=0,total=0,seen=None): if seen == None: original = t seen = set() if checkCorrect(t) and t not in seen: total += 1 seen.add(t) for i in range(depth,max_depth): p1 = list(t) p1[i] -= 1 p2 = list(t) p2[i] += 1 p1 = tuple(p1) p2 = tuple(p2) #print(p1,p2,depth,t) if p1 not in seen and abs(p1[i] - original[i]) <= 1: total = recurse(p1,max_depth,original,depth+1,total,seen)[0] if p2 not in seen and abs(p2[i] - original[i]) <= 1: total = recurse(p2,max_depth,original,depth+1,total,seen)[0] return total,seen s = tuple(s) print(str(recurse(s,N)[0]))
s558713119
Accepted
18
2,940
156
N = int(input()) s = [int(i) for i in input().split()] even = 0 odd = 0 for i in s: if i % 2 == 0: even += 1 print((3 ** len(s)) - (2 ** even))
s338287606
p03079
u687923925
2,000
1,048,576
Wrong Answer
17
2,940
115
You are given three integers A, B and C. Determine if there exists an equilateral triangle whose sides have lengths A, B and C.
a, b, c = map(str, input().strip().split(' ')) if a+b>c and b+c>a and c+a>b: print("yes") else: print("no")
s727248017
Accepted
18
2,940
103
a, b, c = map(int, input().strip().split(' ')) if a==b and b==c: print("Yes") else: print("No")
s136598842
p03495
u641406334
2,000
262,144
Wrong Answer
2,105
28,580
437
Takahashi has N balls. Initially, an integer A_i is written on the i-th ball. He would like to rewrite the integer on some balls so that there are at most K different integers written on the N balls. Find the minimum number of balls that Takahashi needs to rewrite the integers on them.
N, K = map(int,input().split()) ball = input().split() nums = sorted(list(set(ball))) ball_num = len(nums) if K >= ball_num: print("0") exit() cnt = ball_num - K temp_list = [] for j in range(ball_num): num = ball.count(nums[j]) if cnt>0: temp_list.append(num) sorted(temp_list) cnt-=1 elif temp_list[-1]>num: temp_list[0] = num sorted(temp_list, reverse = True) print(sum(temp_list), temp_list)
s305901690
Accepted
108
40,220
243
N, K = map(int,input().split()) ball = input().split() d = {} if K >= len(set(ball)): print("0") exit() for i in ball: if not i in d: d[i] = 1 else: d[i] += 1 d_val = sorted(d.values(),reverse=True) print(N - sum(d_val[:K]))
s725979211
p03645
u443736699
2,000
262,144
Wrong Answer
1,003
50,136
275
In Takahashi Kingdom, there is an archipelago of N islands, called Takahashi Islands. For convenience, we will call them Island 1, Island 2, ..., Island N. There are M kinds of regular boat services between these islands. Each service connects two islands. The i-th service connects Island a_i and Island b_i. Cat Snuke is on Island 1 now, and wants to go to Island N. However, it turned out that there is no boat service from Island 1 to Island N, so he wants to know whether it is possible to go to Island N by using two boat services. Help him.
n,m = list(map(int,input().strip().split())) path = [[] for i in range(n)] for i in range(m): a,b = list(map(int,input().split())) path[a-1].append(b-1) path[b-1].append(a-1) for j in path[0]: if m-1 in path[j]: print("POSSIBLE") exit() print("IMPOSSIBLE")
s133113700
Accepted
966
50,136
275
n,m = list(map(int,input().strip().split())) path = [[] for i in range(n)] for i in range(m): a,b = list(map(int,input().split())) path[a-1].append(b-1) path[b-1].append(a-1) for j in path[0]: if n-1 in path[j]: print("POSSIBLE") exit() print("IMPOSSIBLE")
s983932093
p02390
u628279257
1,000
131,072
Wrong Answer
30
7,456
72
Write a program which reads an integer $S$ [second] and converts it to $h:m:s$ where $h$, $m$, $s$ denote hours, minutes (less than 60) and seconds (less than 60) respectively.
S=int(input()) print(str(S//3600)+":"+str(S%3600/60)+":"+str(S%3600%60))
s900582610
Accepted
20
7,636
73
S=int(input()) print(str(S//3600)+":"+str(S%3600//60)+":"+str(S%3600%60))
s613012305
p02393
u286589639
1,000
131,072
Wrong Answer
20
7,440
198
Write a program which reads three integers, and prints them in ascending order.
n = list(map(int, input().split())) for i in range(2): if n[i] > n[i+1]: temp = n[i] n[i] = n[i+1] n[i+1] = temp for i in range(2): print(n[i], end=" ") print(n[2])
s873792191
Accepted
20
7,504
222
a, b, c, = map(int, input().split()) if a > b: temp = a a = b b = temp if b > c: temp = b b = c c = temp if a > b: temp = a a = b b = temp print(str(a) + ' ' + str(b) + ' ' + str(c))
s855384148
p02259
u488601719
1,000
131,072
Wrong Answer
20
7,692
442
Write a program of the Bubble Sort algorithm which sorts a sequence _A_ in ascending order. The algorithm should be based on the following pseudocode: BubbleSort(A) 1 for i = 0 to A.length-1 2 for j = A.length-1 downto i+1 3 if A[j] < A[j-1] 4 swap A[j] and A[j-1] Note that, indices for array elements are based on 0-origin. Your program should also print the number of swap operations defined in line 4 of the pseudocode.
N = int(input()) A = list(map(int, input().split())) def bubble_sort(A, N): cnt = 0 flag = True while(flag): flag = False for i in range(N-1, 0, -1): if(A[i-1] > A[i]): tmp = A[i-1] A[i-1] = A[i] A[i] = tmp cnt += 1 flag = True B = list(map(str, A)) print(" ".join(B)) print(cnt) print(*A) bubble_sort(A, N)
s582580018
Accepted
70
7,788
423
N = int(input()) A = list(map(int, input().split())) def bubble_sort(A, N): cnt = 0 flag = True while(flag): flag = False for i in range(N-1, 0, -1): if(A[i-1] > A[i]): tmp = A[i-1] A[i-1] = A[i] A[i] = tmp cnt += 1 flag = True print(" ".join(list(map(str, A)))) print(cnt) bubble_sort(A, N)
s213631491
p02924
u658801777
2,000
1,048,576
Wrong Answer
17
2,940
110
For an integer N, we will choose a permutation \\{P_1, P_2, ..., P_N\\} of \\{1, 2, ..., N\\}. Then, for each i=1,2,...,N, let M_i be the remainder when i is divided by P_i. Find the maximum possible value of M_1 + M_2 + \cdots + M_N.
while True: try: N = int(input()) print(int(N*(N-1)/2)) except EOFError: break
s723214617
Accepted
17
2,940
106
while True: try: N = int(input()) print(N*(N-1)//2) except EOFError: break
s793213612
p02259
u308033440
1,000
131,072
Wrong Answer
20
5,600
518
Write a program of the Bubble Sort algorithm which sorts a sequence _A_ in ascending order. The algorithm should be based on the following pseudocode: BubbleSort(A) 1 for i = 0 to A.length-1 2 for j = A.length-1 downto i+1 3 if A[j] < A[j-1] 4 swap A[j] and A[j-1] Note that, indices for array elements are based on 0-origin. Your program should also print the number of swap operations defined in line 4 of the pseudocode.
def BubbleSort(A,N): flag = 1 count = 0 while flag: flag = 0 for i in range(N-1,0,-1): if A[i] < A[i-1]: tmp = A[i] A[i] = A[i- 1] A[i-1] = tmp flag = 1 count = count +1 print(' '.join(map(str,A))) print(count) N = int(input()) A = input() A = list(map(int,A.split())) BubbleSort(A,N)
s644551913
Accepted
20
5,596
421
def BubbleSort(A,N): flag = 1 count = 0 while flag: flag = 0 for i in range(N-1,0,-1): if A[i] < A[i-1]: tmp = A[i] A[i] = A[i- 1] A[i-1] = tmp flag = 1 count = count +1 print(' '.join(map(str,A))) print(count) N = int(input()) A = list(map(int,input().split())) BubbleSort(A,N)
s097708032
p03719
u235210692
2,000
262,144
Wrong Answer
18
2,940
93
You are given three integers A, B and C. Determine whether C is not less than A and not greater than B.
a,b,c=input().split() if a[-1]==b[0] and b[-1]==c[0]: print("YES") else: print("NO")
s961387296
Accepted
17
2,940
97
a,b,c=[int(i) for i in input().split()] if c>=a and c<=b: print("Yes") else: print("No")
s870108809
p03998
u223663729
2,000
262,144
Wrong Answer
17
3,064
219
Alice, Bob and Charlie are playing _Card Game for Three_ , as below: * At first, each of the three players has a deck consisting of some number of cards. Each card has a letter `a`, `b` or `c` written on it. The orders of the cards in the decks cannot be rearranged. * The players take turns. Alice goes first. * If the current player's deck contains at least one card, discard the top card in the deck. Then, the player whose name begins with the letter on the discarded card, takes the next turn. (For example, if the card says `a`, Alice takes the next turn.) * If the current player's deck is empty, the game ends and the current player wins the game. You are given the initial decks of the players. More specifically, you are given three strings S_A, S_B and S_C. The i-th (1≦i≦|S_A|) letter in S_A is the letter on the i-th card in Alice's initial deck. S_B and S_C describes Bob's and Charlie's initial decks in the same way. Determine the winner of the game.
s = open(0).read().split() x = s[0][0] s[0] = s[0][1:] while s[0] and s[1] and s[2]: p = ord(x)-97 x = s[p][0] s[p] = s[p][1:] if len(s[0]) == 0: print('A') elif len(s[1]) == 0: print('B') else: print('C')
s353956850
Accepted
17
3,060
168
s = open(0).read().split() x = s[0][0] s[0] = s[0][1:] while True: p = ord(x)-97 if len(s[p]) == 0: print(x.upper()) break x = s[p][0] s[p] = s[p][1:]
s828425858
p03399
u442948527
2,000
262,144
Wrong Answer
26
8,944
60
You planned a trip using trains and buses. The train fare will be A yen (the currency of Japan) if you buy ordinary tickets along the way, and B yen if you buy an unlimited ticket. Similarly, the bus fare will be C yen if you buy ordinary tickets along the way, and D yen if you buy an unlimited ticket. Find the minimum total fare when the optimal choices are made for trains and buses.
a,b,c,d=[input() for _ in range(4)] print(min(a,b)+min(c,d))
s094158869
Accepted
25
8,924
65
a,b,c,d=[int(input()) for _ in range(4)] print(min(a,b)+min(c,d))
s415513449
p03251
u143318682
2,000
1,048,576
Wrong Answer
18
3,060
286
Our world is one-dimensional, and ruled by two empires called Empire A and Empire B. The capital of Empire A is located at coordinate X, and that of Empire B is located at coordinate Y. One day, Empire A becomes inclined to put the cities at coordinates x_1, x_2, ..., x_N under its control, and Empire B becomes inclined to put the cities at coordinates y_1, y_2, ..., y_M under its control. If there exists an integer Z that satisfies all of the following three conditions, they will come to an agreement, but otherwise war will break out. * X < Z \leq Y * x_1, x_2, ..., x_N < Z * y_1, y_2, ..., y_M \geq Z Determine if war will break out.
N, M, X, Y = map(int, input().split()) x = list(map(int, input().split())) y = list(map(int, input().split())) i = X + 1 while i < Y + 1: if min(y) - max(x) > 0 and min(y) - max(x) == i: print('No War') break else: i += 1 if i == Y + 1: print('War')
s083204521
Accepted
18
3,060
268
N, M, X, Y = map(int, input().split()) x = list(map(int, input().split())) y = list(map(int, input().split())) i = X + 1 while i < Y + 1: if max(x) < i and i <= min(y): print('No War') break else: i += 1 if i == Y + 1: print('War')
s225159795
p02578
u981309686
2,000
1,048,576
Wrong Answer
129
32,292
198
N persons are standing in a row. The height of the i-th person from the front is A_i. We want to have each person stand on a stool of some heights - at least zero - so that the following condition is satisfied for every person: Condition: Nobody in front of the person is taller than the person. Here, the height of a person includes the stool. Find the minimum total height of the stools needed to meet this goal.
max_tool=0 n=int(input()) arr=list(map(int,input().split())) maxi=arr[0] for i in range(1,len(arr)): if arr[i]<maxi: max_tool=max(max_tool,maxi-arr[i]) else: maxi=arr[i] print (max_tool)
s950850373
Accepted
117
32,248
175
tool=0 n=int(input()) arr=list(map(int,input().split())) maxi=arr[0] for i in range(1,len(arr)): if arr[i]<maxi: tool+=(maxi-arr[i]) else: maxi=arr[i] print (tool)
s982260903
p03568
u987164499
2,000
262,144
Wrong Answer
17
2,940
155
We will say that two integer sequences of length N, x_1, x_2, ..., x_N and y_1, y_2, ..., y_N, are _similar_ when |x_i - y_i| \leq 1 holds for all i (1 \leq i \leq N). In particular, any integer sequence is similar to itself. You are given an integer N and an integer sequence of length N, A_1, A_2, ..., A_N. How many integer sequences b_1, b_2, ..., b_N are there such that b_1, b_2, ..., b_N is similar to A and the product of all elements, b_1 b_2 ... b_N, is even?
from sys import stdin s = stdin.readline().rstrip() for i in range(len(s)-1): if s[i]+s[i+1] == "AC": print("Yes") exit() print("No")
s123809482
Accepted
17
3,060
202
from sys import stdin n = int(stdin.readline().rstrip()) li = list(map(int,stdin.readline().rstrip().split())) a = 3**len(li) point = 1 for i in li: if i % 2 == 0: point*=2 print(a-point)
s385857308
p02389
u427219397
1,000
131,072
Wrong Answer
20
5,584
58
Write a program which calculates the area and perimeter of a given rectangle.
a,b = map(int,input().split()) print(a+a+b+b) print(a*b)
s614196391
Accepted
20
5,580
51
a,b = map(int, input().split()) print(a*b,a+a+b+b)
s284270628
p03494
u401077816
2,000
262,144
Wrong Answer
17
3,064
136
There are N positive integers written on a blackboard: A_1, ..., A_N. Snuke can perform the following operation when all integers on the blackboard are even: * Replace each integer X on the blackboard by X divided by 2. Find the maximum possible number of operations that Snuke can perform.
N = int(input()) A = list(map(int, input().split())) res = 0 if all(a%2 == 0 for a in A): A = [a/2 for a in A] res += 1 print(res)
s480181941
Accepted
19
2,940
135
N = input() A = list(map(int, input().split())) res = 0 while all(a%2 == 0 for a in A): A = [a/2 for a in A] res += 1 print(res)
s155897671
p03457
u506910932
2,000
262,144
Wrong Answer
324
3,060
181
AtCoDeer the deer is going on a trip in a two-dimensional plane. In his plan, he will depart from point (0, 0) at time 0, then for each i between 1 and N (inclusive), he will visit point (x_i,y_i) at time t_i. If AtCoDeer is at point (x, y) at time t, he can be at one of the following points at time t+1: (x+1,y), (x-1,y), (x,y+1) and (x,y-1). Note that **he cannot stay at his place**. Determine whether he can carry out his plan.
# coding: utf-8 n = int(input()) for i in range(n): t,x,y = map(int,input().split()) if t<x+y or (t%2) != (x+y)%2: print("NO") exit() print("YES")
s253138160
Accepted
326
3,060
181
# coding: utf-8 n = int(input()) for i in range(n): t,x,y = map(int,input().split()) if t<x+y or (t%2) != (x+y)%2: print("No") exit() print("Yes")
s109174007
p02255
u608789460
1,000
131,072
Wrong Answer
20
5,520
195
Write a program of the Insertion Sort algorithm which sorts a sequence A in ascending order. The algorithm should be based on the following pseudocode: for i = 1 to A.length-1 key = A[i] /* insert A[i] into the sorted sequence A[0,...,j-1] */ j = i - 1 while j >= 0 and A[j] > key A[j+1] = A[j] j-- A[j+1] = key Note that, indices for array elements are based on 0-origin. To illustrate the algorithms, your program should trace intermediate result for each step.
def insertinSort(A,N): for i in range(1,N): v = A[i] j = i-1 while j >= 0 and A[j] > v: A[j+1] = A[j] j-=1 A[j+1] = v print(A)
s620073586
Accepted
20
5,980
193
N = int(input()) *A, = map(int, input().split()) for i in range(N): v = A[i] j = i - 1 while j >= 0 and A[j] > v: A[j+1] = A[j] j -= 1 A[j+1] = v print(*A)
s961830136
p03695
u711539583
2,000
262,144
Wrong Answer
17
3,060
207
In AtCoder, a person who has participated in a contest receives a _color_ , which corresponds to the person's rating as follows: * Rating 1-399 : gray * Rating 400-799 : brown * Rating 800-1199 : green * Rating 1200-1599 : cyan * Rating 1600-1999 : blue * Rating 2000-2399 : yellow * Rating 2400-2799 : orange * Rating 2800-3199 : red Other than the above, a person whose rating is 3200 or higher can freely pick his/her color, which can be one of the eight colors above or not. Currently, there are N users who have participated in a contest in AtCoder, and the i-th user has a rating of a_i. Find the minimum and maximum possible numbers of different colors of the users.
n = int(input()) a = list(map(int, input().split())) d = {} e = 0 for ai in a: s = ai // 400 if s > 7: e += 1 else: if s in d: d[s] += 1 else: d[s] = 1 print(min(8, len(d) + e))
s948225949
Accepted
18
2,940
216
n = int(input()) a = list(map(int, input().split())) d = {} e = 0 for ai in a: s = ai // 400 if s > 7: e += 1 else: if s in d: d[s] += 1 else: d[s] = 1 print(max(1, len(d)), len(d) + e)
s657233900
p02936
u699752889
2,000
1,048,576
Wrong Answer
2,107
65,688
939
Given is a rooted tree with N vertices numbered 1 to N. The root is Vertex 1, and the i-th edge (1 \leq i \leq N - 1) connects Vertex a_i and b_i. Each of the vertices has a counter installed. Initially, the counters on all the vertices have the value 0. Now, the following Q operations will be performed: * Operation j (1 \leq j \leq Q): Increment by x_j the counter on every vertex contained in the subtree rooted at Vertex p_j. Find the value of the counter on each vertex after all operations.
from heapq import heappush, heappop, heapify, heapreplace from collections import defaultdict from bisect import bisect_left class Solution: def main(self): path = defaultdict(list) N, Q = map(int, input().split()) freq = [0] * N for i in range(N-1): ai, bi = map(int, input().split()) path[ai-1].append(bi-1) path[bi-1].append(ai-1) for i in range(Q): p, x = map(int, input().split()) print(p, x) freq[p-1] += x stack = [(0, 0)] seen = set() res = [0] * N while stack: node, cum = stack.pop(0) seen.add(node) val = freq[node] + cum res[node] = val for other in path[node]: if other not in seen: stack.append((other, val)) print(res) if __name__ == '__main__': Solution().main()
s115810589
Accepted
1,447
82,192
767
from heapq import heappush, heappop, heapify, heapreplace from collections import defaultdict from bisect import bisect_left class Solution: def main(self): path = defaultdict(list) N, Q = map(int, input().split()) freq = [0] * N for i in range(N-1): ai, bi = map(int, input().split()) path[ai-1].append(bi-1) # path[bi-1].append(ai-1) for i in range(Q): p, x = map(int, input().split()) freq[p-1] += x stack = [(0, 0)] seen = set() res = freq[:] for i in range(N): for other in path[i]: res[other] += res[i] print(' '.join(map(str, res))) if __name__ == '__main__': Solution().main()
s975732856
p03456
u652569315
2,000
262,144
Wrong Answer
17
2,940
117
AtCoDeer the deer has found two positive integers, a and b. Determine whether the concatenation of a and b in this order is a square number.
a,b=input().split() ab=int(a+b) ans='Yes' if ab//int(pow(ab,0.5))==ab and ab%int(pow(ab,0.5))==0 else 'No' print(ans)
s827716529
Accepted
17
3,060
129
a,b=input().split() ab=int(a+b) ans='Yes'if(ab//int(pow(ab,0.5))==int(pow(ab,0.5)) and ab%int(pow(ab,0.5))==0)else'No' print(ans)