Cod sursa(job #583026)
Utilizator | Data | 17 aprilie 2011 13:47:58 | |
---|---|---|---|
Problema | Sum | Scor | 35 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.33 kb |
#include<fstream>
using namespace std;
ifstream f("sum.in");
ofstream g("sum.out");
long long cmmdc(long long a,long long b)
{if(!b) return a;
else
return cmmdc(b,a%b);
}
int main()
{long long n,i,j,nr,t;
f>>t;
for(i=1;i<=t;i++)
{f>>n; nr=0; for(j=1;j<=2*n;j++)
if(cmmdc(n,j)==1) nr+=j;
g<<nr<<'\n';}
}