Cod sursa(job #198813)
| Utilizator |  Irina Patru Amethyst |
Data | 15 iulie 2008 11:49:21 |
|---|---|---|---|
| Problema | Factorial | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.31 kb |
#include<fstream.h>
#include<iostream.h>
int main()
{fstream f("fact.in",ios::in);
fstream g("fact.out",ios::out);
int p, n=1, x=0, i;
f>>p;
for(i=1;i<=n;i++)
while (i%5==0)
{x++;
i=i/5;}
if (x==p) g<<n;
else if (x>p) g<<-1;
else n++;}
f.close();
g.close();
return 0;
}