Cod sursa(job #915969)

Utilizator robertstrecheStreche Robert robertstreche Data 15 martie 2013 17:09:44
Problema Factorial Scor 45
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("fact.in");
ofstream g("fact.out");
int x=0,p,cx;
int main()
{
    f>>p;
   while (p>0)
   {
       x+=5;cx=x;
       while (cx%5==0){p--;cx/=5;}
   }
   if (p==0)g<<x;
   else g<<"-1";
    f.close();
    g.close();
    return 0;
}