Cod sursa(job #222241)
Utilizator | Data | 21 noiembrie 2008 14:08:26 | |
---|---|---|---|
Problema | Fractii | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.34 kb |
#include<fstream.h>
int cmmmdc(int a, int b)
{
while(a!=b)
if(a>b) a=a-b;
else b=b-a;
if (a!=1) return 0;
else return 1;}
main()
{ifstream f("fractii.in");
ofstream g("fractii.out");
int n,i,j,c;
c=2*(n-1)+1;
for(i=2;i<=n;i++)
for(j=2;j<=n;j++)
if(cmmmdc(i,j)==1) c++;
g<<c; }