View Code of Problem 10

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int[] arr = new int[4];
		for(int i = 0; i < N; i ++) {
			for(int j = 0; j < 4; j ++) {
				arr[j] = sc.nextInt();
			}
			move(arr);
			for(int j = 3; j > 0; j --) {
				if(arr[j] == arr[j - 1]) {
					arr[j] = arr[j] + arr[j - 1];
					arr[j - 1] = 0;
					move(arr);
				}
			}
			for(int j = 0; j < 4; j ++) {
				if(j == 3) {
					System.out.println(arr[j]);
				} else {
					System.out.print(arr[j]  + " ");
				}
			}
		}
	}

	private static void move(int[] is) {
		// TODO Auto-generated method stub
		int len = is.length - 1;
		for(int i = 3; i >= 0; i --) {
			if(is[i] != 0) {
				int temp = is[i];
				is[i] = 0;
				is[len --] = temp;
			}
		}
	}
}