Cod sursa(job #716976)
| Utilizator |  Pirvu Mihai PirvuMihai |
Data | 19 martie 2012 14:26:29 |
|---|---|---|---|
| Problema | Factorial | Scor | 70 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.33 kb |
#include <fstream>
#include <iostream>
using namespace std;
ifstream f("fact.in");
ofstream g("fact.out");
int main ()
{
int p,nr=0,i=0,q;//long int n;
f>>p;
while(nr<p)
{
i+=5;q=25;nr++;
while(i%q==0)
{
nr++;
q*=5;
}
}
if(nr==p)
g<<i;
else
g<<"-1";
f.close();
g.close();
return 0;
}