Cod sursa(job #41938)
Utilizator | Data | 28 martie 2007 18:29:50 | |
---|---|---|---|
Problema | Factorial | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.28 kb |
#include <stdio.h>
FILE *f=fopen("fact.in","r"), *g=fopen("fact.out","w");
int main()
{
long t,p,n,i=0,k5=0;
fscanf(f,"%ld",&n);
i=0;
t=0;
while (k5<n)
{
while ((t%5==0)&&(t!=0) && (k5<n))
{
t/=5;
k5++;
}
i+=5;t=i;
}
fprintf(g,"%ld\n",i);
return 0;
}