Submission

Status:

[PPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: opjns

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-13 10:19:50

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