Interview Preparation Kit - Array(2D Array-DS) hacker rank
2D Array - DS Given a 2D Array , : 1 1 1 0 0 0 0 1 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 We define an hourglass in to be a subset of values with indices falling in this pattern in 's graphical representation: a b c d e f g There are hourglasses in , and an hourglass sum is the sum of an hourglass' values. Calculate the hourglass sum for every hourglass in , then print the maximum hourglass sum. For example, given the 2D array: -9 -9 -9 1 1 1 0 -9 0 4 3 2 -9 -9 -9 1 2 3 0 0 8 6 6 0 0 0 0 -2 0 0 0 0 1 2 4 0 We calculate the following hourglass values: -63, -34, -9, 12, -10, 0, 28, 23, -27, -11, -2, 10, 9, 17, 25, 18 Our highest hourglass value is from the hourglass: 0 4 3 1 8 6 6 Note: If you have already solved the Java domain's Java 2D Array challenge, you may wish to skip this challenge. Function Description Complete the function hourglassSum in the editor below. It should re