Cod sursa(job #837735)

Utilizator VladThVintilescu Vlad VladTh Data 18 decembrie 2012 16:38:46
Problema Factorial Scor 15
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.3 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;


int main()
{
	ifstream fin("fact.in");
	ofstream fout("fact.out");
	int p;
	fin>>p;
	int n=1,nr=0,i=1;
	while(nr!=p)
	{
		i++;
		n*=i;
		while(n%10==0)
		{
			n/=10;	
			nr++;
		}
		n%=10;
	}
	fout<<i;
	fin.close();
	fout.close();
	return 0;
}