Cod sursa(job #274031)
Utilizator | Mircea Iordache Ellsolan | Data | 9 martie 2009 12:45:49 |
---|---|---|---|
Problema | Factorial | Scor | 5 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.28 kb |
#include <fstream>
using namespace std;
int main()
{
int n=0,p,i,j;
ifstream in ("fact.in");
ofstream out("fact.out");
in>>p;
if (p>0)
{
for (i=5;i<=p*5;i+=5)
if((n+=i/5)==p)
out<<i;
}
out<<1;
return 0;
}