Cod sursa(job #325205)

Utilizator emilianparaicu14Emilian Paraicu emilianparaicu14 Data 19 iunie 2009 15:09:10
Problema Factorial Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
#include<fstream>
using namespace std;
int main()
{
	ifstream in ("fact.in");
	ofstream out ("fact.out");
int P,n,i,e=0;	
in>>P;
n=5*P;

	for(i=25;i<=n;i+=25)
		{ int ii=i;
			while((ii!=0)&&(ii%25==0))
			{ e++;
			n=n-5;
			  ii=ii/5;}
		}
if(P==0) out<<"1";
else
out<<n;

in.close();
out.close();
return 0;
}