Cod sursa(job #1111399)

Utilizator AndreiGrigorasAndrei Grigoras AndreiGrigoras Data 18 februarie 2014 20:54:55
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("fact.in");
ofstream g("fact.out");
int main()
{    long int p,c1;
    f>>p;
    if(p%6==5) g<<"-1";
    else
    {c1=p/6;
    p=p-c1;
    if(p==0) g<<"1";
   else
    while(c1>=5)
   {
       c1=c1/5;
       p=p-c1;
   }
    g<<5*p;}
    return 0;
}