Set Matrix Zeroes

Medium

Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in-place.

https://leetcode.com/problems/set-matrix-zeroes/

Example 1:

Input: 
[
  [1,1,1],
  [1,0,1],
  [1,1,1]
]
Output: 
[
  [1,0,1],
  [0,0,0],
  [1,0,1]
]

Example 2:

Input: 
[
  [0,1,2,0],
  [3,4,5,2],
  [1,3,1,5]
]
Output: 
[
  [0,0,0,0],
  [0,4,5,0],
  [0,3,1,0]
]

Follow up:

• A straight forward solution using O(mn) space is probably a bad idea.\
• A simple improvement uses O(m + n) space, but still not the best solution.
  Could you devise a constant space solution?