Cod sursa(job #276974)

Utilizator keller946Radoi Liviu keller946 Data 11 martie 2009 14:02:53
Problema Factorial Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
long long p,divx,nr,i;
int main()
{
    ifstream f("fact.in");
    ofstream g("fact.out");
    f>>p;
    if( p==0 || p==5) {g<<"-1"; g.close(); return 0;}
    for(i=5;divx<=p;i+=5){
    nr=i;
    while(nr%5==0) {divx++;nr=nr/5;}
    }
    g<<divx;g.close();
    return 0;}