Cod sursa(job #2396784)

Utilizator AndreiStrAndrei Stroici AndreiStr Data 3 aprilie 2019 20:20:09
Problema Fractii Scor 10
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include <bits/stdc++.h>

using namespace std;
ifstream f("fractii.in");
ofstream g("fractii.out");
int n,nr,x,c;

int main()
{
    f>>n;
    nr=n;
    for(int i=2;i<=n;i++)
        for(int j=1;j<=n;j++)
            if(__gcd(i,j)==1)
                nr++;
    g<<nr;
    return 0;
}