Cod sursa(job #2284294)
Utilizator | Data | 17 noiembrie 2018 10:20:12 | |
---|---|---|---|
Problema | Fractii | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.24 kb |
#include <fstream>
using namespace std;
ifstream fin("fractii.in");
ofstream fout("fractii.out");
long long a,n,i;
int main()
{
fin>>a;
n=a*a;
for(i=1;i<=a-1;i++)
n=n-a/i+1;
fout<<n;
return 0;
}