Cod sursa(job #19786)
| Utilizator |  Catalina Predoi hazegirl |
Data | 19 februarie 2007 22:31:46 |
|---|---|---|---|
| Problema | Factorial | Scor | 5 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.28 kb |
#include<fstream.h>
int main()
{long int p,n,z,i,q;
ifstream f("fact.in");
f>>p;
f.close();
i=0; q=p;
while(p>0)
{i+=5;
z=i;
while(z%5==0)
{q--;
z/=5;}};
ofstream g("fact.out");
if(p==0) g<<"1";
else if(q==0) g<<i; else g<<"-1";
g.close();
return 0;
}