Cod sursa(job #141592)

Utilizator Alexa_ioana_14Antoche Ioana Alexandra Alexa_ioana_14 Data 23 februarie 2008 14:27:19
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include<stdio.h>
int main()
{
	long long ci,i=0,p,num=0;
	freopen ("fact.in","r",stdin);
	freopen ("fact.out","w",stdout);
	scanf("%ld",&p);
	while (num<p)
	{
		i=i+5;
		ci=i;
		do
		{
			if (ci%5==0) num++;
			ci/=5;
		}
		while (ci!=0);
	}
	if (num==p)
		printf("%ld",i);
	else
		printf("-1");
	return 0;
}