Cod sursa(job #695464)

Utilizator CristinaPelePele Cristina CristinaPele Data 28 februarie 2012 12:33:57
Problema Factorial Scor 5
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.27 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    fstream f("fact.in", ios::in), g("fact.out", ios::out);
    long p,nr=0;
    f>>p;
    nr=p/5;
    if(p==nr*5+nr-1)
    g<<-1;
    else
    g<<(p*5-((p*5)/25-1)*5);
    return 0;
}