Submission

Status:

[PPPPPPPPPP]

Score: 100

User: Pera

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.002 second

Submitted On: 2024-11-23 20:21:34

#include <bits/stdc++.h>

int main(void) {

    int t {};
    std::cin >> t;

    if (t == 0) {
        std::cout << "0" << "\n";
        return 0;
    } else if (t == 1) {
        std::cout << "4" << "\n";
        return 0;
    } else {
        int height {14};
        int increment {16};

        for (int i = 0; i < t - 2; i++) {
            height += increment;
            increment += 6;
        }

        std::cout << height << '\n';
        return 0;
    }

}