Cod sursa(job #141614)
| Utilizator |  Antoche Ioana Alexandra Alexa_ioana_14 |
Data | 23 februarie 2008 14:48:53 |
|---|---|---|---|
| Problema | Factorial | Scor | 20 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.34 kb |
#include<stdio.h>
int main()
{
long long ci,i=0,p,num=0;
freopen ("fact.in","r",stdin);
freopen ("fact.out","w",stdout);
scanf("%lld",&p);
while (num<p)
{
i=i+5;
ci=i;
while(ci%5==0)
{
num++;
ci/=5;
}
if (num==p)
{ printf("%lld",i); break;}
else if(num>p)
{ printf("-1"); break;}
}
return 0;
}