Cod sursa(job #883316)
Utilizator | Data | 19 februarie 2013 21:57:11 | |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.54 kb |
#include <iostream>
#include <fstream>
using namespace std;
int cmmdc (int a,int b)
{
while (a!=b)
if (a>b)
a=a-b;
else
b=b-a;
return a;
}
int main()
{
long a, c, j, i;
fstream f;
f.open("fractii.in", fstream::in);
f >>a;
c = 0;
for(i = 1;i<=a;i++)
{
for(j = 1;j<=a;j++)
{
if(cmmdc(i,j) == 1)
{
c++;
}
}
}
f.close();
f.open("fractii.out", fstream::out);
f << c;
return 0;
}