Cod sursa(job #2611092)

Utilizator rusuandrei32Rusu Andrei-Cristian rusuandrei32 Data 6 mai 2020 13:16:15
Problema Factorial Scor 15
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include <bits/stdc++.h>
using namespace std;

ifstream in("fact.in");
ofstream out("fact.out");

int main() {
    int P;

    in >> P;

    if (P == 0)
        out << 1;

    else if (P == 5 || P % 6 == 5)
        out << -1;

    else
        out << P * 5 - 5 * ((P - 1) / 5);

    in.close();
    out.close();

    return 0;
}