public class start {

public static void main(String[] args) { int [][] x = { {1, 2, 3}, {4, 5, 6, 7, 8}, {11, 12} }; int [][] y = { {20, 12}, {10, 11}, {12, 13, 14, 15} }; int [][][] z = { x, y }; System.out.println("" + sum(x) + " Expected: 59"); System.out.println("" + sum(y) + " Expected: 107"); System.out.println("" + sum(z) + " Expected: 166"); }

public static int sum (int [][] a) { int sum = 0; // Your code goes here return sum; } public static int sum (int [][][] a) { 2 int sum = 0; // Your code goes here return sum; }

}