Cod sursa(job #2120584)

Utilizator Alex_BubBuburuzan Alexandru Alex_Bub Data 2 februarie 2018 17:43:55
Problema Factorial Scor 15
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.23 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream fin("fact.in");
ofstream fout("fact.out");
int main()
{
    long long x;
    fin >> x;
    if(!x)
        fout << "1";
    else
        fout << ((x%5) ? (x-(x-1)/5)*5 : -1);
}