Cod sursa(job #1993626)
Utilizator | Data | 23 iunie 2017 13:46:03 | |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.39 kb |
#include <fstream>
using namespace std;
ifstream cin("fractii.in");
ofstream cout("fractii.out");
int cmmdc(int a, int b){
int rest;
while(b!=0){
rest=a%b;
a=b;
b=rest;
}
return a;
}
int main(){
int n, k=0;
cin>>n;
for(int i=1; i<=n; i++)
for(int j=1; j<=n; j++)
if(cmmdc(i, j)==1) k++;
cout<<k;
return 0;
}