Cod sursa(job #2495406)

Utilizator pro119Manea Dumitru pro119 Data 19 noiembrie 2019 12:41:56
Problema Factorial Scor 10
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include <bits/stdc++.h>
#define ll long long
using namespace std;

ll p;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    ifstream cin("fact.in");
    ofstream cout("fact.out");
    cin>>p;
    if (p==5) cout<<-1;
    else if(p==0) cout<<1;
    else if (p<5) cout<<p*5;
    else cout<<(p-1)*5;
    return 0;
}