3009번 - 네 번째 점 import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int[] num1 = {sc.nextInt(), sc.nextInt()}; int[] num2 = {sc.nextInt(), sc.nextInt()}; int[] num3 = {sc.nextInt(), sc.nextInt()}; sc.close(); int x = 0, y = 0; if(num1[0] == num2[0]) { x = num3[0]; } else if(num1[0] == num3[0]) { x = num2[0]; } else if(num2[0]..
