Problem 3: Null Propagation (Set Matrix Zeroes) Problem Statement Given an m x n integer matrix matrix, if an element is 0, set its entire row and column to 0's. You must do it in-place. Input Format A 2D integer matrix matrix. Example Input: matrix = [[1, 1, 1], [1, 0, 1], [1, 1, 1]] Output: [[1, 0, 1], [0, 0, 0], [1, 0, 1]]