Submission

Score: 0

User: APNICHANAN

Problemset: นักบินอวกาศ

Language: c

Time: 0.002 second

Submitted On: 2025-09-26 22:19:55

#include <stdio.h>
int main()
{
    int t, h = 4;
    scanf("%d", &t);
    if (t == 0)
        printf("0");
    else if (t == 1)
        printf("4");
    else
        for (int i = 2; i <= t; i++)
            h += 4 + (6 * (i - 1));
    printf("%d", h);
}