Cod sursa(job #798869)

Utilizator Paula-ElenaPaula-Elena Margarit Paula-Elena Data 17 octombrie 2012 14:52:21
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;

int main(){

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

    long long p, s, i;
    fin >> p;

    if(p == 0) s = 1;
    else if((p-5)%6 == 0) s = -1;
    else {
        i = p - p/6;
        s = i*5;
    }

    fout << s;

    fin.close();
    fout.close();

    return 0;
}