Submission

Score: 100

User: boss

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.004 second

Submitted On: 2025-10-14 07:19:35

#include <bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin>>n;
	int i=0;
	int j=-3;
	int count=0;
	while(i<=n)
	{
		count=i*(4+j);
		i++;
		j+=3;
	}
	cout<<count;
	
	
	return 0;
}