Cod sursa(job #689607)
| Utilizator |  Alex Suciu alexsuciu |
Data | 24 februarie 2012 18:04:47 |
|---|---|---|---|
| Problema | Fractii | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.28 kb |
#include<fstream>
using namespace std;
long i,n,j,s=0;
int diva(int a,int b)
{while(a!=b)
if(a>b) a=a-b;
else b=b-a;
return a;}
int main()
{ifstream f("fractii.in");
ofstream g("fractii.out");
f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(diva(i,j)==1) s++;
g<<s;}