Cod sursa(job #2781413)
Utilizator | Data | 9 octombrie 2021 13:49:04 | |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.57 kb |
#include <fstream>
using namespace std;
int cmmdc2(int a,int b)
{
while(a)
{
if(a<b)
{
swap(b,a);
}
a=a%b;
}
return b;
}
int main()
{
ifstream fin ("fractii.in");
ofstream fout ("fractii.out");
int n,nrf=0;
fin>>n;
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
{
if(cmmdc2(i,j)==1)
{
nrf++;
}
}
}
fout<<nrf;
fin.close();
fout.close();
return 0;
}