Cod sursa(job #2254103)

Utilizator GabyyyAlexandru Gabyyy Data 4 octombrie 2018 19:43:49
Problema Fractii Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("fractii.in");
ofstream fout("fractii.out");
int main()
{
    int n;
    cin>>n;
    if(n%2==0)
    cout<<n+(n-1)*(n/2-1)+(n/2)*(n/2);
    else
    cout<<n+((n-1)/2)*((n+1)/2)+(((n+1)/2)-1)*(n-1);
    return 0;
}