/* | |
math > number theory | |
difficulty: none | |
date: none | |
by: @brpapa | |
*/ | |
using namespace std; | |
int main() { | |
int n, qte = 0; | |
cin >> n; | |
for (int k = 1; k <= sqrt(n); k++) | |
for (int i = k; i * k <= n; i++) | |
qte++; | |
cout << qte << endl; | |
return 0; | |
} |
/* | |
math > number theory | |
difficulty: none | |
date: none | |
by: @brpapa | |
*/ | |
using namespace std; | |
int main() { | |
int n, qte = 0; | |
cin >> n; | |
for (int k = 1; k <= sqrt(n); k++) | |
for (int i = k; i * k <= n; i++) | |
qte++; | |
cout << qte << endl; | |
return 0; | |
} |