Submission

Score: 100

User: karnsinee

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.002 second

Submitted On: 2025-09-15 21:15:03

#include<iostream>
#include<vector>
using namespace std;
int main(){
	int a,t,sum;
	cin>>t;
	a=4;
	sum=0;
	for(int i=0;i<=200;i++){
		if(i==t){
			cout<<sum;
			return 0;
		}
		sum=sum+a;
		a=a+6;
		
		
	}
}