Cod sursa(job #261625)
Utilizator | Data | 18 februarie 2009 16:29:17 | |
---|---|---|---|
Problema | Factorial | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.5 kb |
#include <stdio.h>
#include <iostream>
#include <math.h>
using namespace std;
long P;
int main()
{
freopen ("fact.in","r",stdin);
//freopen ("fact.out","w",stdout);
scanf("%ld",&P);
P=0;
if (P == 0)
{
printf("%ld\n",1);
return 0;
}
else
{
long reached = 0;
long NoOf5 = 0;
while (NoOf5 < P)
{
reached += 5;
long aux = reached;
while (aux % 5 == 0)
{
aux = aux / 5;
NoOf5 += 1;
}
}
printf("%ld\n",reached);
}
return 0;
}