View Code of Problem 10

import java.util.ArrayList;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        ArrayList<Integer> list = new ArrayList<>();
        int[] c = new int[4];
        for (int i = 0; i < n; i++) {
            for (int l = 0; l < 4; l++) {
                c[l] = scanner.nextInt();
            }
            for (int j = 3; j > 0; j--) {
                boolean flag=false;
                while(true){
                    for(int k=3;k>0;k--){
                        if(c[k]==0&&c[k-1]!=0){
                            c[k]=c[k-1];
                            c[k-1]=0;
                            flag=true;
                        }
                        else {
                            flag=false;
                        }
                    }
                    if(flag==false){
                        break;
                    }
                }
                if (c[j] == c[j - 1] || c[j] == 0) {
                    c[j] += c[j - 1];
                    c[j - 1] = 0;
                }
            }
            for(int o=0;o<4;o++){
                if(o==0) {
                    System.out.print(c[o]);
                } else {
                    System.out.print(" "+c[o]);
                }
            }
            System.out.println();
        }
    }
}