Cod sursa(job #903739)
| Utilizator |  Georgeta Voinea georgeta |
Data | 2 martie 2013 18:26:32 |
|---|---|---|---|
| Problema | Fractii | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.27 kb |
#include<iostream>
using namespace std;
int n,m;
int cmmdc(int a, int b)
{if((!a) || (!b)) return a+b;
if(a>b) return cmmdc(a%b,b);
return cmmdc(a,b%a);}
int main()
{cin>>n;
for(int i=1;i<=n;i++)for(int j=1;j<=n;j++)if(cmmdc(i,j)==1)m++;
cout<<m;
return 0;}