Submission

[PPPPPPPPPP]

Score: 100

User: njoop

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.001 second

Submitted On: 2024-11-18 20:39:18

#include <stdio.h>

int main() {
    int n, ans=0, val=4;
    scanf("%d", &n);
    for(int i=0; i<n; i++) {
        ans += val;
        val += 6;
    }
    printf("%d", ans);
    return 0;
}