Cod sursa(job #441286)

Utilizator myshuSpatariu Mihai-Constantin myshu Data 12 aprilie 2010 20:56:30
Problema Factorial Scor 60
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include<fstream.h>
int main ()
{
	ifstream fcin("fact.in");
	ofstream fcout("fact.out");
	int p,zerouri,k,k2;
	fcin>>p;
	zerouri=0;
	k=5;
	while(zerouri<p)
		{k2=k;
			while(k2%5==0)
			{zerouri++;
			 k2=k2/5;}
		 k=k+5;}
	if(zerouri==p){if(k>5)fcout<<k-5;
					else fcout<<1;}
	else fcout<<-1;
	return 0;
}