[백준/Java] 2438번 체스판 조각

-Code

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int n = sc.nextInt();

        System.out.println((n / 2 + 1) * (n - n / 2 + 1));
    }
}