Cod sursa(job #2250731)

Utilizator danielsociuSociu Daniel danielsociu Data 30 septembrie 2018 16:58:41
Problema Factorial Scor 5
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include <fstream>
std::ifstream cin("fact.in");
std::ofstream cout("fact.out");

int main()
{
    long long p, sol=0;
    int k=0;
    cin>>p;
    while(p>0){
        k++;
        p--;
        sol+=5;
        if(k==5)
            k=0,p-=1;
    }
    if(p==0)
        cout<<sol;
    else
        cout<<-1;
}