Submission

Status:

[PPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: eippy

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-11 09:52:48

#include<iostream>
using namespace std;
int main(){
    int t,h=0,x;
    cin >> t;
    if (t == 0){
        cout << 0;
        return 0;
    }
    x = 4;
    for (int i=1; i<=t; i++){
       h += x;
       x += 6;
    }
    cout << h;
    return 0;
}