id
int32 0
32.5k
| code
stringlengths 95
8.4k
| label
stringclasses 65
values |
|---|---|---|
18,500 | int main(){
int n=0,i=0;
scanf("%d",&n);
for(i=0;i<n;i++){
double s=0,squs=0;
int a=0,j=0;
scanf("%d",&a);
for(j=0;j<a;j++){
double num=0;
scanf("%lf",&num);
s=s+num;
squs=squs+(num*num);
}
double ave=0;
ave=s/a;
double ss=0;
ss=sqrt((squs-(2*ave*s)+(a*ave*ave))/a);
printf("%.5lf\n",ss);
}
return 0;
}
| 38 |
18,501 |
int main(int argc, char* argv[])
{
int n;
scanf("%d",&n);
int k[100];
double a[100],s[100],x[100][100];
int i,j;
for(i=0;i<n;i++){
scanf("%d",&k[i]);
for(j=0;j<k[i];j++){
scanf("%lf",&x[i][j]);
}
}
for(i=0;i<n;i++){
a[i]=0;s[i]=0;
for(j=0;j<k[i];j++){ a[i]+=x[i][j]; }
a[i]=a[i]/k[i];
for(j=0;j<k[i];j++){
s[i]+=pow( (x[i][j]-a[i]),2 );
}
s[i]=sqrt(s[i]/k[i]);
printf("%.5lf\n",s[i]);
}
return 0;
}
| 38 |
18,502 | int main(int argc, char* argv[])
{
int n,k,i,j;
double s,a[100],sumf,sums,b,c[100];
scanf("%d",&k);
for(i=0;i<k;i++)
{
sumf=0;sums=0;b=0;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&a[j]);
}
for(j=0;j<n;j++)
{
sumf += a[j];
}
b=sumf/(double)n;
for(j=0;j<n;j++)
{
c[j]=(a[j]-b)*(a[j]-b);
sums += c[j];
}
s=sums/n;
printf("%.5lf\n",sqrt(s));
}
return 0;
}
| 38 |
18,503 | void main()
{
int n,i,m,j;
double ave,dif,a[200],*p;
p=a;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
ave=0;
dif=0;
scanf("%d",&m);
scanf("%lf",p+1);
for(j=2;j<=m;j++)
{
scanf(" %lf",p+j);
}
for(j=1;j<=m;j++)
{
ave+=*(p+j);
}
ave=ave*1.0/(m*1.0);
for(j=1;j<=m;j++)
{
dif+=(*(p+j)-ave)*(*(p+j)-ave);
}
dif=dif*1.0/(m*1.0);
dif=sqrt(dif);
printf("%.5f\n",dif);
}
}
| 38 |
18,504 | int main()
{
int n,k,i,j;
float x[1001];
double s,sum;
cin>>n;
for(i=1;i<=n;i++)
{
sum=0.0;
s=0.0;
cin>>k;
for(j=0;j<k;j++)
{
cin>>*(x+j);
sum+=*(x+j);
}
sum=sum/k;
for(j=0;j<k;j++)
s=s+(sum-*(x+j))*(sum-*(x+j));
s=sqrt(s/k);
printf("\n%.5f",s);
}
return 0;
} | 38 |
18,505 | int main()
{
int n;
scanf("%d",&n);
int x=0;
double sum=0,s=0;
double z[100];
for(int i=0;i<n;i++)
{
scanf("%d",&x);
for(int j=0;j<x;j++)
{
scanf("%lf",&(z[j]));
sum=sum+z[j];
}
for(int f=0;f<x;f++)
{
s=s+(z[f]-sum/x)*(z[f]-sum/x);
}
s=s/x;
s=pow(s,0.5);
printf("%0.5lf\n",s);
sum=0;
s=0;
}
return 0;
}
| 38 |
18,506 | void main()
{
int n,i;
scanf("%d",&n);
double *p[50]={0};
for(i=0;i<n;i++)
{
int m;
scanf("%d",&m);
int j;
double *x;
double sum=0;
for(j=0;j<m;j++)
{
x=(double*)malloc(sizeof(double));
scanf("%lf",x);
p[j]=x;
sum+=*x;
}
double a,c=0;
a=sum/m;
for(j=0;j<m;j++)
{
c+=(*(p[j])-a)*(*(p[j])-a);
}
c=c/m;
double s;
s=sqrt(c);
printf("%.5lf\n",s);
}
} | 38 |
18,507 | // ????.cpp : ??????????????
//
//#include "stdafx.h"
int main()
//int _tmain(int argc, _TCHAR* argv[])
{
int k;
cin>>k;
for(int t=0;t<k;t++)
{
double a[100],sum=0.0,arr;
int n;
cin>>n;
for(int i=0;i<n;i++)
{
cin>>*(a+i);
sum+=*(a+i);
}
arr=sum/n;
sum=0.0;
for(int i=0;i<n;i++)
{
sum+=(*(a+i)-arr)*(*(a+i)-arr);
}
sum=sqrt(sum/n);
cout<<fixed<<showpoint<<setprecision(5)<<sum<<endl;
}
return 0;
}
| 38 |
18,508 | int main()
{
int k,n;double sum;double x[100];double a,b,c;double S;
int i,j;double sum1;
scanf("\n%d",&k);
for(i=0;i<k;i++)
{
sum=0;sum1=0;
scanf("\n%d\n",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
sum+=x[j];
}
a=sum/n;
for(j=0;j<n;j++)
{
b=(x[j]-a)*(x[j]-a);
sum1+=b;
}
c=sum1/n;
S=sqrt(c);
printf("%.5lf\n",S);
}
return 0;
} | 38 |
18,509 | int main()
{
int n,i,j,num;
double av=0.0;
double sum=0.0;
double cha=0.0;
double s=0.0;
double f;
double a[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{
av=0.0;
sum=0.0;
cha=0.0;
s=0.0;
f=0.0;
scanf("%d",&num);
for(j=0;j<num;j++)
{
scanf("%lf",&a[j]);
sum=sum+a[j];
}
av=sum/num;
for(j=0;j<num;j++)
cha=cha+(a[j]-av)*(a[j]-av);
s=cha/num;
f=sqrt(s);
printf("%.5f\n",f);
}
return 0;
} | 38 |
18,510 | int main(int argc, char* argv[])
{
int k,n;
scanf("%d",&k);
int i;
float sz[100];
for(i=1;i<=k;i++){
scanf("%d",&n);
int j;
for(j=0;j<n;j++){
scanf("%f",&*(sz+j));
}
float a=0;
for(j=0;j<n;j++){
a=a+*(sz+j);
}
a=a/n;
double s=0;
for(j=0;j<n;j++){
s=s+(*(sz+j)-a)*(*(sz+j)-a);
}
s=s/n;
s=sqrt(s);
printf("%.5lf\n",s);
}
return 0;
} | 38 |
18,511 | int main()
{
int k,n,i,j;
double x[1000],a=0.0,c=0.0,d,b;
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&x[j]);
}
for(j=0;j<n;j++){
a=a+x[j];
}
b=1.0*a/n;
for(j=0;j<n;j++){
c=pow(x[j]-b,2)+c;
}
d=sqrt(1.0*c/n);
printf("%.5lf\n",d);
a=0.0;
c=0.0;
}
return 0;
}
| 38 |
18,512 | int main()
{
int n,x,i=0,j;
double s[X],sum1=0,ave,sum2=0,f;
scanf("%d",&n);
while(i<n)
{
scanf("%d",&x);
for(j=0;j<x;j++)
{
if(j==0)
scanf("%lf",&s[j]);
else
scanf(" %lf",&s[j]);
sum1=sum1+s[j];
}
ave=sum1/x;
for(j=0;j<x;j++)
{
s[j]=(s[j]-ave)*(s[j]-ave);
sum2=sum2+s[j];
}
f=sqrt(sum2/x);
printf("%.5f\n",f);
i++;
sum1=0;sum2=0;ave=0;
}
return 0;
} | 38 |
18,513 |
int main()
{
double sum;
double sum2;
double input;
int n, k;
int in;
scanf("%d", &k);
for(; k>0; k--){
scanf("%d", &n);
sum = sum2 = 0;
for(in=0; in<n; in++){
scanf("%lf", &input);
sum += input;
sum2 += input * input;
}
printf("%.5f\n", sqrt((sum2-sum*sum/n)/n));
}
return 0;
}
| 38 |
18,514 | int main()
{
int n,i=0,a,m=0;
scanf("%d\n",&n);
for(i=0;i<n;i++)
{
scanf("%d\n",&a);
double sz[100],sum=0,q,w=0,e;
for(m=0;m<a;m++)
{scanf("%lf",&sz[m]);
sum+=sz[m];
}
q=sum/a;
for(m=0;m<a;m++)
{w+=(sz[m]-q)*(sz[m]-q);}
e=sqrt(w/a);
printf("%.5lf\n",e);
}
return 0;
}
| 38 |
18,515 | int main()
{
int k, n[100], i, j;
double x[100][100];
double a[100]={0}, s[100]={0}, S[100]={0};
scanf("%d", &k);
for(i=0;i<k;i++){
scanf("%d",&n[i]);
for(j=0;j<n[i];j++){
scanf("%lf", &x[i][j]);
}
}
for(i=0;i<k;i++){
for(j=0;j<n[i];j++){
a[i]+=x[i][j]/n[i];
}
}
for(i=0;i<k;i++){
for(j=0;j<n[i];j++){
s[i]+=(x[i][j]-a[i])*(x[i][j]-a[i]);
}
}
for(i=0;i<k;i++){
S[i]=sqrt(s[i]/n[i]);
}
for(i=0;i<k;i++){
printf("%.5lf\n", S[i]);
}
return 0;
}
| 38 |
18,516 | int main()
{
int n,i=0,j=0,k=0,s=0,m=0;
double an[100];
double sum,jz;
scanf("%d",&n);
for(i=0;i<n;i++){
sum=jz=0.0;
scanf("%d",&m);
for(j=0;j<m;j++){
scanf("%lf",&an[j]);
sum+=an[j];
}
sum/=m;
for(j=0;j<m;j++){
jz+=(an[j]-sum)*(an[j]-sum);
}
jz=jz/m;
printf("%.5lf\n",sqrt(jz));
}
return 0;
} | 38 |
18,517 | int main(){
int n;
scanf("%d",&n);
double m,sz[101][1003]={0},aver=0,s=0,x=0,y=0;
for(int i=0;i<n;i++){
scanf("%lf",&m);
for(int j=1;j<=m;j++){
sz[i][0]=m;
scanf("%lf",&sz[i][j]);
}
}
for(int k=0;k<n;k++){
for(int h=1;h<=sz[k][0];h++){
x+=sz[k][h];
}
aver=x/sz[k][0];
x=0;
for(int b=1;b<=sz[k][0];b++){
y+=pow(sz[k][b]-aver,2);
}
s=sqrt(y/sz[k][0]);
y=0;
printf("%.5lf\n",s);
}
return 0;
} | 38 |
18,518 |
void main(void)
{
int k;
scanf("%d",&k);
for(;k>0;k--)
{
int n;
double x[100];
scanf("%d",&n);
int i;
double add_sqr=0,a=0;
for(i=0;i<=n-1;i++)
scanf("%lf",&x[i]);
double *p=x;
for(i=0;i<=n-1;i++)
{
add_sqr+=*(p+i)**(p+i);
a+=*(p+i);
}
add_sqr/=n;
a/=n;
printf("%.5lf\n",sqrt(add_sqr-a*a));
}
} | 38 |
18,519 | int main()
{
int k,n,i,j;
double x[100],*p,a,s,S;
scanf("%d",&k);
p=(double *)malloc(sizeof(double)*k);
for(i=0;i<k;i++){
scanf("%d",&n);
a=0;
s=0;
for(j=0;j<n;j++){
scanf("%lf",&x[j]);
a+=x[j]/n;}
for(j=0;j<n;j++)
s+=(x[j]-a)*(x[j]-a)/n;
S=sqrt(s);
*(p+i)=S;}
for(i=0;i<k;i++)
printf("%.5f\n",p[i]);
free(p);
return 0;
} | 38 |
18,520 | int main(){
int k,n,i,j;
double x[4000][101],s[4000],a[4000],t[4000];
scanf("%d",&k);
for(i=0;i<k;i++){
a[i]=0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&x[i][j]);
a[i]+=x[i][j];
}
a[i]=a[i]/n;
t[i]=0;
for(j=0;j<n;j++){
t[i]+=(x[i][j]-a[i])*(x[i][j]-a[i]);
}
s[i]=sqrt(t[i]/n);
}
for(i=0;i<k;i++){
printf("%.5lf\n",s[i]);
}
return 0;
}
| 38 |
18,521 | int main()
{
int t;
cin >> t;
while(t--)
{
int n; double a[102];
cin >> n;
for(int i = 0; i < n; i++)
cin >> a[i];
double *p = a; p = &a[0];
double ave = 0;
while( p < &a[n] )
{
ave += *p;
p++;
}
ave /= n;
double res = 0;
p = &a[0];
while( p < &a[n] )
{
res += (*p - ave) * (*p - ave);
p++;
}
res /= n;
res = sqrt(res);
printf("%.5lf\n",res);
}
return 0;
} | 38 |
18,522 |
int main(int argc, char* argv[])
{
int n,i,j,m;
double a[1001],ans,pfh,ave,*p;
scanf("%d",&n);
for(i=1;i<=n;i++){
scanf("%d",&m);
p=&a[0];
ave=0;
pfh=0;
for(j=1;j<=m;j++){
scanf("%lf",(p+j));
ave+=*(p+j);
}
ave/=m;
for(j=1;j<=m;j++){
pfh+=pow(*(p+j)-ave,2);
}
pfh/=m;
ans=sqrt(pfh);
printf("%.5lf\n",ans);
}
return 0;
}
| 38 |
18,523 | int main(int argc, char* argv[])
{
int k,i,n[1000],j;
float x[1000]={0},sum[1000]={0};
double S[1000]={0};
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n[i]);
for(j=0;j<n[i];j++){
scanf("%f",&x[j]);
sum[i]+=x[j];
}
for(j=0;j<n[i];j++)
S[i]+=(double)(x[j]-sum[i]/n[i])*(x[j]-sum[i]/n[i]);
printf("%.5lf\n",sqrt(S[i]/n[i]));
}
return 0;
} | 38 |
18,524 | int main ()
{
double fangcha(double *p,int n,double fc);
int n,k,i,j;
double a[1000],*p,fc=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&k);
for(j=0;j<k;j++)
scanf("%lf",&a[j]);
p=a;
if(i)
printf("\n");
printf("%.5f",fangcha(p,k,fc));
}
return 0;
}
double fangcha(double *p,int n,double fc)
{
double aver,sum=0;
int i;
for(i=0;i<n;i++)
sum+=*(p+i);
aver=sum/n;
sum=0;
for(i=0;i<n;i++)
{
sum+=(*(p+i)-aver)*(*(p+i)-aver);
}
fc=sqrt(sum/n);
return fc;
} | 38 |
18,525 | int main()
{
double n,s=0,average=0,t;
cin>>t;
for(int j=0;j<t;j++)
{
s=0;
average=0;
cin>>n;
double x[1000],*p;
for(int i=0;i<n;i++)
{
cin>>x[i];
}
p=x;
for(int i=0;i<n;i++)
{
average=average+*(p+i);
}
average=average/n;
for(int i=0;i<n;i++)
{
s=s+(*(p+i)-average)*(*(p+i)-average);
}
s=s/n;
s=sqrt(s);
cout<<fixed<<setprecision(5)<<s<<endl;
}
return 0;
} | 38 |
18,526 | int main()
{
double x[1000], a, z, s, S[100];
int n, i, e, f;
scanf("%d", &n);
for(e=0;e<n;e++){
scanf("%d", &i);
z=0;
s=0;
for(f=0;f<i;f++){
scanf("%lf", &x[f]);
z+=x[f];
}
a=z/i;
for(f=0;f<i;f++){
s+=pow(x[f]-a,2);
}
S[e]=pow(s/i,0.5);
}
for(e=0;e<n;e++)
printf("%.5lf\n", S[e]);
return 0;
} | 38 |
18,527 | int main()
{
int m,i,j;
double a[100]={0},c=0,s=0,n;
scanf("%d",&m);
for(j=0;j<m;j++){
double sum=0,ave=0, total=0,pf=0;
scanf("%lf",&n);
for(i=0;i<n;i++){
scanf("%lf",&a[i]);
sum+=a[i];
ave=sum/n;
}
for(i=0;i<n;i++){
pf=(a[i]-ave)*(a[i]-ave);
total+=pf;
}
c=total/n;
s=sqrt(c);
printf("%.5lf\n",s);
}
return 0;
}
| 38 |
18,528 | double fangcha(double sz[],int k)
{
double sum=0,s,a=0;
int t;
double *p;
p=sz;
for(t=0;t<k;t++,p++)
{
a=a+*p;
}
a=a/k;
p=sz;
for(t=0;t<k;t++,p++)
{
sum=sum+(*p-a)*(*p-a);
}
s=sqrt((sum/k));
return s;
}
int main(int argc, char* argv[])
{
int n,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
int m;
scanf("%d",&m);
int j;
double sz[1000];
for(j=0;j<m;j++)
{
scanf("%lf",&sz[j]);
}
printf("%.5f\n",fangcha(sz,m));
}
return 0;
} | 38 |
18,529 | int main()
{
int k,i,n,j=0;
scanf("%d",&k);
double x[100];
while(j<k)
{
double a=0,s=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf",&(x[i]));
}
for(i=0;i<n;i++)
{
a+=x[i];
}
a=a/(n*1.0);
for(i=0;i<n;i++)
{
s+=(x[i]-a)*(x[i]-a);
}
s=s/(n*1.0);
s=sqrt(s);
printf("%.5lf\n",s);
j++;
}
return 0;
} | 38 |
18,530 | int main()
{
int n,i,k,m[100];
double a[1000],sum1,sum2,s[100]={0};
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%d",&m[i]);
for(k=1;k<=m[i];k++)
{
scanf("%lf",&a[k]);
}
sum1=0;
sum2=0;
for(k=1;k<=m[i];k++)
{
sum1+=a[k];
}
sum1=sum1/m[i];
for(k=1;k<=m[i];k++)
{
sum2+=(a[k]-sum1)*(a[k]-sum1);
}
sum2=sum2/m[i];
s[i]=(double)sqrt(sum2);
}
for(i=1;i<=n;i++)
{
printf("%.5lf\n",s[i]);
}
return 0;
} | 38 |
18,531 | int main()
{
int k,i,n,j;
double x[1000],sum,p,a;
double S;
scanf("%d",&k);
for(j=0;j<k;j++)
{
sum=0;
p=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf",&x[i]);
sum+=x[i];
}
a=(double)(sum/n);
for(i=0;i<n;i++)
{
p+=(double)pow((x[i]-a),2);
}
p=(double)(p/n);
S=(double)sqrt(p);
printf("%.5f\n",S);
}
return 0;
} | 38 |
18,532 | int main(int argc, char* argv[])
{
int n,i,j,m;
scanf("%d",&n);
for(i=0;i<n;i++)
{
double A[1000],sum=0,a,b=0,s,S;
scanf("%d",&m);
for(j=0;j<m;j++)
{
scanf("%lf",&A[j]);
sum=sum+A[j];
}
a=(double)(sum/m);
for(j=0;j<m;j++)
{
b=b+(A[j]-a)*(A[j]-a);
}
s=(double)b/m;
S=sqrt(s);
printf("%.5lf\n",S);
}
return 0;
}
| 38 |
18,533 | void main()
{
int i,j,p=0;
int k;
scanf("%d",&k);
for(i=0;i<k;i++)
{
int n;
scanf("%d",&n);
double *p,a=0,s=0;
p=(double *)calloc(n,sizeof(double));
for(j=0;j<n;j++)
{scanf("%lf",p+j);
a=a+*(p+j);}
a=a/n;
for(j=0;j<n;j++)
{s=s+(*(p+j)-a)*(*(p+j)-a);}
s=sqrt(s/n);
printf("%.5f\n",s);
}
} | 38 |
18,534 |
int main()
{
int k,n,i,a;
double sz[1000][100],pj,s=0;
scanf("%d",&k);
for(a=0;a<k;a++){
s=0;
pj=0;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%lf",&sz[a][i]);
pj+=sz[a][i];
}
pj=pj/n;
for(i=0;i<n;i++){
s+=(sz[a][i]-pj)*(sz[a][i]-pj);
}
s=sqrt(s/n);
printf("%.5lf\n",s);
}
return 0;
} | 38 |
18,535 | main()
{
int n,i,j,m;
double a[2000],x=0;
double sum=0;
scanf("%d",&n);
for (i=1;i<=n;i++)
{ scanf("%d",&m);
for (j=1;j<=m;j++)
{
scanf("%lf",&a[j]);
x=x+a[j];
}
for (j=1;j<=m;j++)
sum=sum+(a[j]-x/m)*(a[j]-x/m);
sum=sqrt(sum/m);
printf("%.5f\n",sum);
sum=0;
x=0;
for (j=1;j<=m;j++)
a[j]=0;
}
} | 38 |
18,536 | int main(){
int n,i,j,m[100];
double a[200],sum=0,pingfanghe=0,l,s[200],ave;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&m[i]);
for(j=0;j<m[i];j++){
scanf("%lf",&a[j]);
sum+=a[j];
}
ave=sum/m[i];
for(j=0;j<m[i];j++){
l=(a[j]-ave)*(a[j]-ave);
pingfanghe+=l;
}
s[i]=sqrt(pingfanghe/m[i]);
sum=0;
pingfanghe=0;
ave=0;
}
for(i=0;i<n;i++){
printf("%.5lf\n",s[i]);
}
return 0;
} | 38 |
18,537 |
int main()
{
int k,i,n,m;
double a[10000],sum1,sum2,s;
scanf("%d",&k);
for(i=0;i<k;i++){
sum1=0;
sum2=0;
scanf("%d",&n);
for(m=0;m<n;m++){
scanf("%lf",&a[m]);
sum1+=a[m];
}
sum1=(double)sum1/n;
for(m=0;m<n;m++){
sum2=sum2+(a[m]-sum1)*(a[m]-sum1);
}
sum2=(double)sum2/n;
s=(double)sqrt(sum2);
printf("%.5lf\n",s);
}
return 0;
}
| 38 |
18,538 | int main()
{
int k,n;
double x[1000],a[1000]={0},c[1000]={0};
scanf("%d",&k);
for(int i=0;i<k;i++)
{
double s=0;
scanf("%d",&n);
for(int j=0;j<n;j++){
scanf("%lf",&x[j]);
a[i]+=x[j];
}
a[i]/=n;
for(int j=0;j<n;j++)
c[i]+=pow((x[j]-a[i]),2);
s=sqrt(c[i]/n);
printf("%.5lf\n",s);
}
return 0;
} | 38 |
18,539 | int main()
{
int k;
double b[1000];
scanf("%d",&k);
int i;
for(i=0;i<k;i++){
double sum=0;
int a;
scanf("%d",&a);
int j;
for(j=0;j<a;j++){
scanf("%lf",&b[j]);
sum=sum+b[j];
}
double c=0;
for(j=0;j<a;j++){
c=c+(b[j]-sum/a)*(b[j]-sum/a);
}
double s=0;
s=sqrt(c/a);
printf("%.5lf\n",s);
}
return 0;
} | 38 |
18,540 | int main(){
int i,j,k=0,n=0;
double a[1000],x[1000],m=0;
scanf("%d",&k);
for(i=0;i<k;i++){
x[i]=0;
m=0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&a[j]);}
for(j=0;j<n;j++){
m=m+a[j];}
for(j=0;j<n;j++){
x[i]=(double)(a[j]-m/(float)n)*(a[j]-m/(float)n)+x[i];}
printf("%0.5lf\n",sqrt(x[i]/(float)n));}
return 0;
}
| 38 |
18,541 | int main()
{
int k,n[100],i,j;
double x[100][100],sum[100]={0},sum1[100]={0},re[100];
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n[i]);
for(j=0;j<n[i];j++)
{
scanf("%lf",&x[i][j]);
sum[i]+=x[i][j];
}
}
for(i=0;i<k;i++)
{
for(j=0;j<n[i];j++)
{
sum1[i]+=((x[i][j]-sum[i]/n[i])*(x[i][j]-sum[i]/n[i]));
}
re[i]=sqrt(sum1[i]/n[i]);
printf("%.5lf\n",re[i]);
}
return 0;
} | 38 |
18,542 | int main()
{
int k,i,j,n[N];
scanf("%d",&k);
double a[N],S[N];
for(i=0;i<k;i++)
{
scanf("%d",&n[i]);
S[i]=0.0;
double sum=0.0,x[M];
for(j=0;j<n[i];j++)
{
scanf("%lf",&x[j]);
sum+=x[j];
}
a[i]=sum/n[i];
for(j=0;j<n[i];j++)
{
S[i]+=(x[j]-a[i])*(x[j]-a[i]);
}
S[i]=sqrt(S[i]/n[i]);
}
for(i=0;i<k;i++)
{
printf("%.5f\n",S[i]);
}
return 0;
} | 38 |
18,543 | int main(){
int i,j,k,n;
double sum,a,b,S;
double x[100];
scanf("%d",&k);
for(j=0;j<k;j++){
sum=0.0;
a=0.0;
b=0.0;
S=0.0;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%lf",&x[i]);
sum+=x[i];
}
a=sum/n;
for(i=0;i<n;i++){
b+=(x[i]-a)*(x[i]-a);
}
S=sqrt(b/n);
printf("%.5f\n",S);
}
return 0;
}
| 38 |
18,544 | int main(){
int n,i,k,m;
double sz[1000],a1=0,a,s1=0,s,s2;
scanf("%d\n",&m);
for(k=0;k<m;k++){
scanf("%d\n",&n);
a1=0;
s1=0;
s2=0;
for(i=0;i<n;i++){
scanf("%lf\n",&(sz[i]));
}
for(i=0;i<n;i++){
a1+=sz[i];
}
a=a1/n;
for(i=0;i<n;i++){
s1+=(sz[i]-a)*(sz[i]-a);
}
s2=s1/n;
s=sqrt(s2);
printf("%.5lf\n",s);
}
return 0;
}
| 38 |
18,545 | void main()
{
int k,n,i,t;
double a[100],ave=0.00,s;
scanf("%d",&k);
for(t=0;t<k;t++)
{
ave=0.00;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf",&a[i]);
ave=ave+a[i];
}
ave=ave/n;
//printf("%lf",ave);
s=0.00;
for(i=0;i<n;i++)
{
s=s+(a[i]-ave)*(a[i]-ave);
}
s=s/n;
// printf("%lf",s);
s=sqrt(s);
printf("%.5f\n",s);
}
} | 38 |
18,546 | int main()
{
int k,n,i,j;double a[100]={0},sum,s2;
scanf("%d",&k);
while(k--)
{
scanf("%d",&n);sum=s2=0;
for(i=0;i<n;i++)
{scanf("%lf",&a[i]);sum+=a[i];}
sum/=n;
for(i=0;i<n;i++)
s2+=(a[i]-sum)*(a[i]-sum);
s2/=n;
printf("%.5lf\n",sqrt(s2));
}
return 0;
}
| 38 |
18,547 | int main()
{
double a[100],s=0;
int k;
cin>>k;
for(;k>0;k--)
{
s=0;
double *p=a;
double ave=0,sum=0;
int n;
cin>>n;
for(int i=0;i<n;i++)
{
cin>>*(p+i);
ave+=*(p+i);
}
ave/=n;
for(int i=0;i<n;i++)
sum+=(*(p+i)-ave)*(*(p+i)-ave);
s=sqrt(sum/n);
printf("%.5f\n",s);
}
return 0;
}
| 38 |
18,548 | int main()
{
int k,n,i,j;
double x[100],a,s;
scanf("%d",&k);
for (j=0;j<k;j++)
{
scanf("%d",&n);
a=0;s=0;
for (i=0;i<n;i++) scanf("%lf",&x[i]);
for (i=0;i<n;i++) a+=x[i];
a=a/n;
for (i=0;i<n;i++) s+=(x[i]-a)*(x[i]-a);
s=sqrt(s/n);
printf("%.5f\n",s);
}
return 0;
} | 38 |
18,549 | int main (){
int a;
int i;
int b,j;
double sum=0;
double l=0;
double sz[100];
double s,k;
scanf("%d",&a);
for(i=0;i<a;i++){
scanf("%d",&b);
for(j=0;j<b;j++){
scanf("%lf",&(sz[j]));}
for(j=0;j<b;j++){
sum+=sz[j];}
k=sum/b;
for(j=0;j<b;j++){
l+=(sz[j]-k)*(sz[j]-k);}
s=sqrt(l/b);
printf("%.5lf\n",s);
sum=0;
l=0;}
return 0;} | 38 |
18,550 | int main()
{
int i,j,k,n;
double data[1000];
double sum = 0,S = 0,ave = 0;
double *pointer = NULL;
cin >> k;
for( i = 0;i<k;i++)
{
cin >> n;
for(j = 0;j < n;j++)
{ cin >> data[j];
sum += data[j];
}
ave = sum / n;
pointer = data;
for(j = 0;j<n;j++)
{
S += ( *pointer-ave) * (*pointer-ave);
pointer++;
}
cout << setprecision(5) << fixed << sqrt(S/n) << endl;
memset(data,0,sizeof(data));
pointer = NULL;
sum = 0;ave = 0;S = 0;
}
return 0;
}
| 38 |
18,551 | int main()
{
int n,k[100];
double num[100][100],average;//?????
cin>>n;
for(int i=0;i<n;i++)
{
cin>>k[i];
for(int j=0;j<k[i];j++)
cin>>num[i][j];
}
for(int i=0;i<n;i++)
{
double total=0.0,sum=0.0,answer;
for(int j=0;j<k[i];j++)
total+=num[i][j];
average=total/k[i];
for(int j=0;j<k[i];j++)
sum+=(num[i][j]-average)*(num[i][j]-average);
sum=sum/k[i];
answer=sqrt(sum);
cout<<fixed<<setprecision(5)<<answer<<endl;
}
return 0;
}
| 38 |
18,552 | int main()
{
int n;
int i;
int j[50];
int b;
double k[100];
double sum;
double a;
scanf("%d", &n);
for(i=0; i<n; i++)
{
scanf("%d", &j[i]);
for(b=0; b<j[i]; b++)
{
scanf("%lf", &k[b]);
}
sum = 0;
for(b=0; b<j[i]; b++)
{
sum += k[b];
}
a = sum / (j[i]);
sum = 0;
for(b=0; b<j[i]; b++)
{
sum += (k[b] - a) * (k[b] - a);
}
sum = sqrt(sum / j[i]);
printf("%.5lf\n", sum);
}
return 0;
} | 38 |
18,553 | int main(){
int k,n,i,j;
double sum1,sum2,r[100],a[100];
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
sum1=0;
for(j=0;j<n;j++){
scanf("%lf",&a[j]);
sum1+=a[j];
}
sum1=sum1/n;
sum2=0;
for(j=0;j<n;j++){
sum2+=(a[j]-sum1)*(a[j]-sum1);
}
r[i]=sqrt(sum2/n);
}
for(i=0;i<k;i++){
printf("%.5f\n",r[i]);
}
return 0;
}
| 38 |
18,554 | int main(){
int k;
scanf("%d",&k);
int i,n[101],j;
double x[1001];
for(i=0;i<k;i++){
double a=0,s=0;
scanf("%d",&n[i]);
for(j=0;j<n[i];j++){
scanf("%lf",&x[j]);
a=a+x[j];
}
a=a/(double)n[i];
for(j=0;j<n[i];j++){
s=s+(x[j]-a)*(x[j]-a);
}
s=sqrt(s/(double)n[i]);
printf("%.5lf\n",s);
}
return 0;
} | 38 |
18,555 | int main()
{
int k,n,i,j,l,m,y;
double *p[100],*pp[100],a,x=0,b=0,c;
scanf("%d",&k);
for (i=0;i<k;i++)
{
scanf("%d",&n);
p[i]=(double * )malloc(100*sizeof(double));
x=0;
for (j=0;j<n;j++)
{
scanf("%lf",p[i]++);
x=x+*(p[i]-1);
}
a=x/n;
p[i]=p[i]-n;
b=0;
for (y=0;y<n;y++)
{
b=b+pow((*(p[i]+y)-a),2);
}
pp[i]=(double * )malloc(sizeof(double));
*pp[i]=sqrt(b/n);
}
for (i=0;i<k;i++)
{
printf("%.5f\n",*pp[i]);
}
} | 38 |
18,556 |
int main()
{
int n;
scanf("%d",&n);
int i;
int j;
for(i=0;i<n;i++){
double sum=0;
double ave;
int num;
scanf("%d",&num);
double s[101];
double *p;
p=s;
for(j=0;j<num;j++,p++){
scanf("%lf",p);
sum+=*p;
}
ave=sum/num;
p=s;
double total=0;
for(j=0;j<num;j++,p++){
total+=(*p-ave)*(*p-ave);
}
double result;
result=sqrt(total/num);
printf("%.5lf\n",result);
}
return 0;
}
| 38 |
18,557 | int main()
{
int k,n,i,j;
double x[1000],a,b,c,d,s;
scanf("%d",&k);
for(j=0;j<k;j++)
{ scanf("%d",&n);
a=0;
for(i=0;i<n;i++)
{ scanf("%lf",&x[i]);
a+=x[i];}
b=a/n;
c=0;
for(i=0;i<n;i++)
{
c+=pow(x[i]-b,2);}
d=c/n;
s=sqrt(d);
printf("%.5f\n",s);
}
return 0;
}
| 38 |
18,558 |
int main() {
int n;
cin >> n;
for ( int i = 1; i <= n; i ++ ) {
double m;
double x[101];
double *p;
p = x;
double ave = 0, sum = 0;
cin >> m;
for ( int j = 1; j <= m; j ++ ) {
cin >> *( p + j);
ave += *( p + j) / m;
}
for ( int j = 1; j <= m; j ++ ) {
sum += ( *( p + j) - ave ) * ( *( p + j) - ave );
}
cout << fixed << setprecision(5) << sqrt ( sum / m ) << endl;
}
return 0;
}
| 38 |
18,559 | int main()
{
int n,i,j,k;
double a=0,b=0,m=0,p=0,x[100];
scanf("%d",&k);
for (i=0;i<k;i++)
{
scanf("%d",&n);
for (j=0;j<n;j++)
{
scanf("%lf",&x[j]);
}
for (j=0;j<n;j++)
{
a=a+x[j];
}
m=1.00000000000*a/n;
for (j=0;j<n;j++)
{
b=b+(x[j]-m)*(x[j]-m);
}
p=sqrt(b/n);
a=0;b=0;
printf("%.5lf\n",p);
}
return 0;
} | 38 |
18,560 |
int main()
{
int k, i, j;
int n[100];
double x[100], m[100], s[100];
double sum[100], a[100];
scanf("%d", &k);
for(i = 0; i < k; i++){
sum[i] = 0;
scanf("%d", &n[i]);
for(j = 0; j < n[i]; j++){
scanf("%lf", &x[j]);
sum[i] = sum[i] + x[j];
}
a[i] = sum[i] / n[i];
m[i] = 0;
for(j = 0; j < n[i]; j++){
m[i] += (x[j] - a[i]) * (x[j] - a[i]);
}
s[i] = sqrt(m[i] / n[i]);
}
for(i = 0; i < k; i++){
printf("%.5lf\n", s[i]);
}
return 0;
}
| 38 |
18,561 | double s(double *p,double ave,int k,double x[])
{
double t=0;
for(;;)
{
t=t+(pow((*p)-ave,2));
p++;
if(p==(x+k))
break;
}
return t;
}
int main()
{
int i,j,n,k;
double x[1001],ave,sum,t,r;
double *p;
p=x;
scanf("%d",&n);
for(i=0;i<n;i++)
{
sum=0;
scanf("%d",&k);
for(j=0;j<k;j++)
scanf("%lf",&x[j]);
for(;;)
{
sum=sum+(*(p++));
if(p==(x+k))
break;
}
ave=sum/k;
p=x;
t=s(p,ave,k,x);
r=sqrt(t/k);
printf("%.5lf\n",r);
}
return 0;
} | 38 |
18,562 | void main()
{
int cases;
scanf("%d",&cases);
while(cases--)
{
int n;
scanf("%d",&n);
double *p;
p=(float*)calloc(n,sizeof(float));
int i;double j;
for(i=0;i<n;i++) scanf("%lf",p++);
p=p-n;
double*f;
f=p;
double sum=0;
for(i=0;i<n;i++,f++) sum=sum+(*f);
double x=sum/n;
double x1=0;
f=p;
for(i=0;i<n;i++,f++) x1=x1+(*f-x)*(*f-x);
double x2;
x2=sqrt(x1/n);
printf("%.5f\n",x2);
}
} | 38 |
18,563 | main()
{
int k,i,g,n;
double ans,j,temp;
double a[1000];
scanf("%d",&k);
for(g=0;g<k;g++)
{
scanf("%d",&n);
for(i=0;i<n;i++) scanf("%lf",&a[i]);
j=0.0;
temp=0.0;
for(i=0;i<n;i++) j+=1.0*a[i]/n;
for(i=0;i<n;i++) temp+=(a[i]-j)*(a[i]-j)*1.0;
ans=sqrt(temp/n);
printf("%.5lf\n",ans);
}
}
| 38 |
18,564 | int main()
{
int k,i;
scanf("%d",&k);
for(i=0;i<k;i++){
int n;
scanf("%d",&n);
int j;
double a=0.0,s=0.0,sz[100];
double *p;
for(j=0,p=sz;j<n;j++,p++){
scanf("%lf",p);
a+=*p;
}
a=a/n;
for(j=0,p=sz;j<n;j++,p++){
s+=(*p-a)*(*p-a);
}
s=sqrt(s/n);
printf("%.5f\n",s);
}
return 0;
} | 38 |
18,565 | int main()
{
int i,n,m,j;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&m);
double a[100]={0},s=0,ave,s1=0,s2=0,*p=a;
for(j=0;j<m;j++)
{
scanf("%lf",p+j);
s=s+a[j];
}
ave=s/m;
for(j=0;j<m;j++)
{
s2=s2+(*(p+j)-ave)*(*(p+j)-ave);
}
s1=sqrt(s2/m);
printf("%.5lf\n",s1);
}
return 0;
} | 38 |
18,566 | int main()
{
int k;
scanf("%d\n",&k);
int zu[k];
double x[k][1000];
int i,j;
for(i=0;i<k;i++)
{
scanf("%d\n",&zu[i]);
for(j=0;j<zu[i]-1;j++)
{
scanf("%lf ",&x[i][j]);
}
scanf("%lf\n",&x[i][zu[i]-1]);
}
double sum[k];
double xbar[k];
for(i=0;i<k;i++){ sum[i]=0;}
for(i=0;i<k;i++)
{
for(j=0;j<zu[i];j++)
{ sum[i]+=x[i][j];}
xbar[i]=sum[i]/zu[i];
}
double fc[k],a[k];
for(i=0;i<k;i++){ a[i]=0;}
for(i=0;i<k;i++)
{
for(j=0;j<zu[i];j++)
{
a[i]+=(x[i][j]-xbar[i])*(x[i][j]-xbar[i]);
}
fc[i]=sqrt(a[i]/zu[i]);
printf("%.5lf\n",fc[i]);
}
return 0;
}
| 38 |
18,567 | void f(double *p,double n)
{
int i;
double ave=0,s=0;
for(i=0;i<=n-1;i++)
{
scanf("%lf",p+i);
ave=ave+*(p+i);
}
ave=ave/n;
for(i=0;i<=n-1;i++)
{
s=s+pow((*(p+i)-ave),2);
}
s=sqrt(s/n);
printf("%.5lf\n",s);
}
int main()
{
int k;
scanf("%d",&k);
int j;
for(j=1;j<=k;j++)
{
double a[102]={0},*p=a;
double n;
scanf("%lf",&n);
f(p,n);
}
return 0;
} | 38 |
18,568 | int main()
{
int k,n,i,j;
double *p,a=0,s=0,sum=0;
double x[1000];
p=x;
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",p+j);
}
for(j=0;j<n;j++){
a+=*(p+j);
}
a=a/n;
for(j=0;j<n;j++){
sum+=pow((*(p+j)-a),2);
}
s=sqrt(sum/n);
printf("%.5lf\n",s);
a=0;s=0;sum=0;
}
return 0;
}
| 38 |
18,569 | int main()
{
int k,i,n[100],j;
double sum=0,x[1000],sum1,sum2=0,ave=0;
double s;
scanf("%d",&k);
for(i=0;i<k;i++)
{
sum=0;
ave=0;
sum2=0;
scanf("%d",&n[i]);
for(j=0;j<n[i];j++)
{
scanf("%lf",&x[j]);
sum=sum+x[j];
}
ave=sum/n[i];
for(j=0;j<n[i];j++)
{
sum2=(double)(sum2+pow(x[j]-ave,2));
sum1=(double)(sum2/n[i]);
s=sqrt(sum1);
}
printf("%.5lf\n",s);
}
return 0;
}
| 38 |
18,570 |
int main()
{
int counttest;
int n;
int i, j;
double average;
double sum;
double x[200];
double *p;
cin >> counttest;
while(counttest --)
{
cin >> n;
average = 0;
sum = 0;
p = x;
for(i = 0; i < n; i ++)
{
cin >> *p;
average += *p / n;
p ++;
}
p = x;
for(i = 0; i < n; i ++)
{
sum += (*p - average) * (*p - average);
p ++;
}
sum = sqrt(sum / n);
cout << fixed << setprecision(5);
cout << sum << endl;
}
} | 38 |
18,571 | int main()
{
int k,n,i,j;
double x[100][1000],a,s[100]={0};
scanf("%d",&k);
for(i=0;i<k;i++){
a=0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&x[i][j]);
}
for(j=0;j<n;j++){
a=a+x[i][j];
}
a=a/n;
for(j=0;j<n;j++){
s[i]=s[i]+(x[i][j]-a)*(x[i][j]-a);
}
s[i]=s[i]/n;
s[i]=sqrt(s[i]);
}
for(i=0;i<k;i++){
printf("%.5lf\n",s[i]);
}
return 0;
}
| 38 |
18,572 |
int main(int argc, char* argv[])
{
int n,u,i,j,k;
scanf("%d",&n);
int m;
double q=0,z=0;//he
double a[1001];
double b[1001];//jie guo
for(i=1;i<=n;i++){
z=0,q=0;
scanf("%d",&m);
for(j=1;j<=m;j++){
scanf("%lf",&a[j]);
q=q+a[j];}
for(k=1;k<=m;k++){
z=z+(a[k]-q/m)*(a[k]-q/m);}
b[i]=sqrt(z/m);
}
for(u=1;u<=n;u++){
printf("%.5lf\n",b[u]);}
return 0;
}
| 38 |
18,573 |
int main(int argc, char* argv[])
{
int k,i,n;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
int j;
float a[100];
double b=0.0;
for(j=0;j<n;j++)
{
scanf("%f",&a[j]);
b+=a[j];
}
b=(double)b/n;
double s=0;
for(j=0;j<n;j++)
{
s+=(a[j]-b)*(a[j]-b);
}
s=(double)(s/n);
s=sqrt(s);
printf("%.5f\n",s);
}
return 0;
}
| 38 |
18,574 | void f(double num[100],int n,double sum)
{
int i;
for(i=0;i<n;i++)
{
num[i]=(num[i]-sum)*(num[i]-sum);
}
}
int main()
{
int k,n,i,j;
double num[100],sum;
scanf("%d",&k);
for(i=1;i<=k;i++)
{
scanf("%d",&n);
sum=0;
for(j=0;j<n;j++)
{
scanf("%lf",&num[j]);
sum+=num[j];
}
sum=sum/n;
f(num,n,sum);
sum=0;
for(j=0;j<n;j++)
sum+=num[j];
sum=sum/n;
sum=sqrt(sum);
printf("%.5lf\n",sum);
}
return 0;
}
| 38 |
18,575 |
int main()
{
int k, i, len[101];
double *q = NULL;
double s[101], a[101], sum[101] = {0}, qsum[101] = {0}, p[1000];
cin >> k;
for(i = 0; i < k; i++)
{
cin >> len[i];
q = p;
for( ; q < p+len[i]; q++)
{
cin >> *q;
sum[i] += *q;
qsum[i] += (*q) * (*q);
}
a[i] = sum[i] / len[i];
qsum[i] -= len[i] * a[i] * a[i];
s[i] = sqrt(qsum[i] / len[i]);
cout << fixed << setprecision(5) << s[i] << endl;
}
return 0;
} | 38 |
18,576 | void main()
{
int k,n,j,i;
float sum,x[1000];
double a,b,s[100],sumt,y;
scanf("%d",&k);
for(j=0;j<k;j++)
{
sum=0;
scanf("%d\n",&n);
for(i=0;i<n;i++)
{
scanf("%f",&x[i]);
sum+=x[i];
}
a=sum/n;
sumt=0;
for(i=0;i<n;i++)
{
y=(x[i]-a)*(x[i]-a);
sumt+=y;
}
b=sumt/n;
s[j]=sqrt(b);
}
for(j=0;j<k;j++)
{
printf("%.5lf\n",s[j]);
}
}
| 38 |
18,577 | int main()
{
int k;
double A[100],ave,s=0;
cin>>k;
for(int j=0;j<k;j++)
{s=0;
double *p=&A[0];
ave=0;
int n;
cin>>n;
for(int i=0;i<n;i++)
{
cin>>A[i];
ave+=A[i];
}
ave=ave/n;
for(int i=0;i<n;i++)
{
s+=(A[i]-ave)*(A[i]-ave);
}
s=sqrt(s/n);
cout<<fixed<<setprecision(5)<<s;;
cout<<endl;
}
return 0;
} | 38 |
18,578 | int main()
{
int k,n,i,j;
double sz[50][100],pj[50],fc[50],zs[50],fch[50];
scanf("%d",&k);
for(i=0;i<k;i++){
zs[i]=0;
fc[i]=0;
pj[i]=0;
fch[i]=0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&sz[i][j]);
}
for(j=0;j<n;j++){
zs[i]+=sz[i][j];
}
pj[i]=zs[i]/n;
for(j=0;j<n;j++){
fch[i]+=(sz[i][j]-pj[i])*(sz[i][j]-pj[i]);
}
fc[i]=sqrt(fch[i]/n);
}
for(i=0;i<k;i++){
printf("%.5lf\n",fc[i]);
}
int a;
scanf("%d",&a);
return 0;
}
| 38 |
18,579 | double Variance(double [],int);
int main()
{
int n,i,j,m;
cin>>n;
for(i=0;i<n;i++)
{
cin>>m;
double X[105];;
for(j=0;j<m;j++)
cin>>X[j];
cout<<fixed<<setprecision(5);
cout<<Variance(X,m)<<endl;
}
return 0;
}
double Variance(double X[105], int n)
{
int i;
double sum=0,V=0;
for(i=0;i<n;i++)
sum+=X[i];
sum=sum/n;
for(i=0;i<n;i++)
V+=pow(X[i]-sum,2);
return sqrt(V/n);
}
| 38 |
18,580 |
int main(int argc, char* argv[])
{
int n,m,i,j;
double a[1000],ave1,ave2,sum1,sum2;
scanf("%d",&n);
for(i=0;i<(2*n);i=i+2){
scanf("%d",&m);
sum1=0;
sum2=0;
for(j=0;j<m;j++){
scanf("%lf",&a[j]);
sum1+=a[j];
}
ave1=sum1/m;
for(j=0;j<m;j++){
sum2+=pow((a[j]-ave1),2);
}
ave2=sqrt(sum2/m);
printf("%.5lf\n",ave2);
}
return 0;
}
| 38 |
18,581 | int main()
{
int n, i, j;
double s, b, B[100];
double sum=0;
double A[100][100];
int m;
double a=0;
scanf("%d", &n);
for(i=0;i<n;i++)
{
scanf("%d", &m);
for(j=0;j<m;j++)
{
scanf("%lf", &A[i][j]);
}
b=0;
sum=0;
for(j=0;j<m;j++)
{
b+=A[i][j];
}
a=b/m;
for(j=0;j<m;j++)
{
sum+=pow((A[i][j]-a),2);
}
B[i]=sqrt(sum/m);
}
for(i=0;i<n;i++)
{
s=B[i];
printf("%.5lf\n", s);
}
return 0;
} | 38 |
18,582 |
int days(int m1,int m2,int e[])
{
int sum=0;
for(int i=m2;i<m1;i++)
sum+=e[i];
cout<<sum<<endl;
return sum+1;
}
int main()
{
int n;
cin>>n;
while(n--)
{
int k;
cin>>k;
double a[200];
for(int i=0;i<k;i++)//????
cin>>a[i];
double sum=0,average;
for(int i=0;i<k;i++)//?????
sum+=a[i];
average=sum/k;
sum=0;
for(int i=0;i<k;i++)
sum+=(a[i]-average)*(a[i]-average);
sum=sum/k;//????
cout<<fixed<<setprecision(5)<<sqrt(sum)<<endl;
}
return 0;
}
| 38 |
18,583 | int main()
{
int k,n,i;
double a[101],sum=0,fangcha = 0,*p;
scanf("%d",&k);
while( k -- )
{
scanf("%d",&n);
for( i = 0; i < n;i ++ )
{
scanf("%lf",&a[i] );
sum += a[i];
}
sum /= n;
p = &a[0];
for( i = 0; i < n; i++ )
fangcha += (sum-*(p+i))*(sum-*(p+i));
fangcha /= n;
fangcha = sqrt(fangcha);
printf("%.5f\n",fangcha);
fangcha = 0;
sum = 0;
}
}
| 38 |
18,584 | void main()
{
int i,j,k,n;
double s,temp,a;
double *p[1000];
for (i=0;i<=999;i++) *(p+i)=(double *)malloc(sizeof(double));
scanf("%d",&k);
for (i=0;i<=k-1;i++)
{
scanf("%d",&n);
for (j=0;j<=n-1;j++)
scanf("%lf",*(p+j));
a=0;
for (j=0;j<=n-1;j++)
a=a+**(p+j);
a=a/n;
temp=0;
for (j=0;j<=n-1;j++)
temp=temp+pow((**(p+j)-a),2);
s=sqrt(temp/n);
printf("%.5f\n",s);
}
} | 38 |
18,585 | int main()
{
int k;
scanf("%d",&k);
int i;
for(i=1;i<=k;i++)
{
int n;
scanf("%d",&n);
int j;
double a[100],sum=0;
for(j=0;j<n;j++)
{
scanf("%lf",&a[j]);
sum=sum+a[j];
}
double ave;
ave=sum/n;
sum=0;
for(j=0;j<n;j++)
{
sum=sum+(a[j]-ave)*(a[j]-ave);
}
printf("%.5lf\n",sqrt(sum/n));
}
}
| 38 |
18,586 | main()
{
int n,m,i,j;
double a[1100]={0},sum=0,ave,s=0,x;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%d",&m);
for(j=1;j<=m;j++)
{
scanf("%lf",&a[j]);
sum=sum+a[j];
}
ave=sum/m;
for(j=1;j<=m;j++)
{
s=s+(a[j]-ave)*(a[j]-ave);
}
s=s/m;
x=sqrt(s);
printf("%.5f\n",x);
for(j=1;j<=m;j++) a[j]=0;
sum=0;
s=0;
}
} | 38 |
18,587 |
int main(int argc, char* argv[])
{
int n,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
double x[1000],m=0,a,sum=0,s;
int k,t;
scanf("%d",&k);
for(t=0;t<k;t++)
{
scanf("%lf",&x[t]);
m=m+x[t];
}
a=m/k;
for(t=0;t<k;t++)
{
sum=sum+(x[t]-a)*(x[t]-a);
}
s=sqrt(sum/(double)k);
printf("%.5lf\n",s);
}
return 0;
} | 38 |
18,588 | int main()
{
int n,i,j,k;
double a[100],sum,ave,s2;
double *p;
scanf("%d",&k);
for(i=1;i<=k;i++)
{
p=a;
scanf("%d",&n);
sum=0;
for(j=1;j<=n;j++)
{
scanf("%lf",p+j-1);
sum+=*(p+j-1);
}
ave=sum/n;
s2=0;
for(j=1;j<=n;j++)
{
s2+=(*(p+j-1)-ave)*(*(p+j-1)-ave);
}
printf("%.5lf\n",sqrt(s2/n));
}
} | 38 |
18,589 | int main(){
int i,j,k,n[100];
double x[100][100],y[100],a[100],b[100],c[100],S[100];
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n[i]);
y[i]=0.0;
for(j=0;j<n[i];j++){
scanf("%lf",&x[i][j]);
y[i]+=x[i][j];
}
a[i]=y[i]/n[i];
}
for(i=0;i<k;i++){
b[i]=0.0;
for(j=0;j<n[i];j++){
b[i]+=(x[i][j]-a[i])*(x[i][j]-a[i]);
}
c[i]=b[i]/n[i];
S[i]=sqrt(c[i]);
}
for(i=0;i<k;i++){
printf("%.5lf\n",S[i]);
}
return 0;
}
| 38 |
18,590 | int main(int argc, char* argv[])
{
int m,i=0;
scanf("%d",&m);
while(i<m)
{
double a[10000];
double x,s,sum1=0,sum2=0;
int n,j;
scanf("%d",&n);
for(j=0;j<n;j++)
scanf("%lf",&a[j]);
for(j=0;j<n;j++)
{
sum1=sum1+a[j];
}
x=sum1/n;
for(j=0;j<n;j++)
{
sum2=sum2+(a[j]-x)*(a[j]-x);
}
s=sqrt(sum2/n);
printf("%.5lf\n",s);
i++;
}
return 0;
}
| 38 |
18,591 | int main ()
{
int n,m;
double x[1010],sum,a,s;
cin>>n;
for(int i=0;i<n;i++)
{
cin>>m;
sum=0;s=0;a=0;
for(int j=0;j<m;j++)
{
cin>>*(x+j);
sum=sum+*(x+j);
}
a=sum/m;
for(int j=0;j<m;j++)
{
s=s+pow(*(x+j)-a,2);
}
s=s/m;s=sqrt(s);
cout<<fixed<<setprecision(5)<<s<<endl;
}
return 0;
} | 38 |
18,592 | void main()
{
int k,i,j,l,n;
double *p[100];
double a,sum=0,s=0,b,c,sum2=0,e;
scanf ("%d",&k);
for (l=0;l<k;l++)
{
a=0;sum=0;s=0;b=0;c=0;sum2=0;e=0;
scanf("%d",&n);
for (j=0;j<n;j++)
*(p+j)=(double * ) malloc (100*sizeof (double));
for (j=0;j<n;j++)
{
scanf("%lf",*(p+j));
sum=sum+**(p+j);
}
a=sum/n;
for (j=0;j<n;j++)
{
b=**(p+j)-a;
c=b*b;
sum2=sum2+c;
}
e=sum2/n;
s=sqrt(e);
printf("%.5f\n",s);
}
}
| 38 |
18,593 | int main(){
int num,n[100],i,j;
double a[100][1000],s[100];
double f(double x[],int k);
scanf("%d",&num);
for(i=0;i<num;i++){
scanf("%d",&n[i]);
for(j=0;j<n[i];j++)
scanf("%lf",&a[i][j]);
}
for(i=0;i<num;i++){
printf("%.5f\n",f(a[i],n[i]));
}
return 0;
}
double f(double x[],int k){
int i;
double a,sum(double y[],int l),s=0;
a=sum(x,k)/k;
for(i=0;i<k;i++){
s+=pow(x[i]-a,2);
}
s=sqrt(s/k);
return(s);
}
double sum(double y[],int l){
int i;
double c=0;
for(i=0;i<l;i++)
c+=y[i];
return(c);
} | 38 |
18,594 | int main(int argc, char* argv[])
{
int k,n;
int i,j;
double sum,a,s,S;
double sz[100];
double* p=sz;
scanf("%d",&k);
for(i=0;i<k;i++){
sum=0;
s=0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",p+j);
sum=sum+*(p+j);
}
a=sum/n;
for(j=0;j<n;j++){
s=s+(*(p+j)-a)*(*(p+j)-a);
}
S=sqrt(s/n);
printf("%.5lf\n",S);
}
return 0;
}
| 38 |
18,595 | int main ()
{
int i,j;
int n;
scanf("%d",&n);
for(j=0;j<n;j++)
{
float a,b;
a=0;
int m;
scanf("%d",&m);
float szj[m];
for(i=0;i<m;i++)
{
scanf("%f",&szj[i]);
a+=szj[i];
}
b=(float)a/m;
double c,d,e;
c=0;
for(i=0;i<m;i++)
{
c+=(double)(szj[i]-b)*(szj[i]-b);
}
d=(double)c/m;
e=sqrt(d);
printf("%.5lf\n",e);
}
return 0;
}
| 38 |
18,596 | int main()
{
int k;
scanf("%d",&k);
int i;
for(i=0;i<k;i++)
{
int n;
double c[100];
scanf("%d",&n);
int j;
for(j=0;j<n;j++)
{
scanf("%lf",&c[j]);
}
double aver,sum=0;
for(j=0;j<n;j++)
{
sum=sum+c[j];
}
aver=sum/n;
double x[100]={0};
for(j=0;j<n;j++)
{
x[j]=(c[j]-aver)*(c[j]-aver);
}
double SUM=0,AVER;
for(j=0;j<n;j++)
{
SUM=SUM+x[j];
}
AVER=SUM/n;
double average;
average=sqrt(AVER);
printf("%.5f\n",average);
}
} | 38 |
18,597 | void main()
{
int k,n,i,j;
double S;
double sum,average,result;
double (*p)[1000];//?????????????????????????????
//???????????????????????????????????????????
p=(double *)calloc(100,1000*sizeof(double));
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
sum=0;
for(j=0;j<n;j++)
{
scanf("%lf",(*(p+i)+j));
sum=sum+*(*(p+i)+j);
}
average=sum/n;
for(j=0,result=0;j<n;j++)
{
result=result+(*(*(p+i)+j)-average)*(*(*(p+i)+j)-average);
}
S=sqrt(result/n);
printf("%.5f\n",S);
}
}
| 38 |
18,598 | int main()
{
int n,m,i,j;
double sz[100][100],sum1[100]={0},junzhi[100],e[100],sum2[100]={0},s[100],a[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&m);
for(j=0;j<m;j++)
{
scanf("%lf",&sz[i][j]);
sum1[i]+=(double)sz[i][j];
}
junzhi[i]=sum1[i]/(double)m;
for(j=0;j<m;j++)
{
e[j]=(junzhi[i]-sz[i][j])*(junzhi[i]-sz[i][j]);
sum2[i]+=(double)e[j];
a[i]=sum2[i]/(double)m;
s[i]=sqrt(a[i]);
}
}
for(i=0;i<n;i++)
{
printf("%.5lf\n",s[i]);
}
return 0;
}
| 38 |
18,599 | int main()
{
double x[101],ave,s=0,S=0;
int i,j,n,k;
scanf("%d",&k);
for(i=1;i<=k;i++)
{
s=0;S=0;
scanf("%d",&n);
for(j=1;j<=n;j++)
{
if(j==1)
scanf("%lf",&x[j]);
else
scanf(" %lf",&x[j]);
s=s+x[j];
}
ave=s/n;
for(j=1;j<=n;j++)
{
S=S+(x[j]-ave)*(x[j]-ave);
}
S=sqrt(S/n);
printf("%.5lf\n",S);
}
} | 38 |
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