Submission

Score: 0

User: asdasd

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-10 23:21:30

#include <stdio.h>
int main(){
    int t;
    scanf("%d" ,&t);
    int s=4;
    int d=10;
    if(t==1){
        printf("%d",s);
        return 0;
    }
    else if(t==2){
        printf("%d",s+6);
        return 0;
    }
    s=14;
    for(int i = 3 ; i<=t ; i++){
        d = d+6;
        s=s+d;
    }
    printf("%d",s);
}