Board Moves CF 1353C.cpp

// Board Moves 1353C.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
using namespace std;

int main()
{
	int t; cin >> t;
	long long int n;
	while (t--) {
		long long int sum = 0;
		cin >> n;

		for (long long int i = 1; i <= (n - 1) / 2; i++) {
			sum += (i * i * 8);

		}
		cout << sum << endl;
	}
}

// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu

// Tips for Getting Started: 
//   1. Use the Solution Explorer window to add/manage files
//   2. Use the Team Explorer window to connect to source control
//   3. Use the Output window to see build output and other messages
//   4. Use the Error List window to view errors
//   5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
//   6. In the future, to open this project again, go to File > Open > Project and select the .sln file