cpp-flashcards/org/study_deck_02/dsa/math-geometry/0073-set-matrix-zeroes.org

• 0073. Set Matrix Zeroes
  • Approach
  • Python
  • C++

TODO 0073. Set Matrix Zeroes   medium

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.

Example 1:

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

Example 2:

Input: matrix = [[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]]

Constraints:

• m == matrix.length
• n == matrix[0].length
• 1 <= m, n <= 200
• -2^{31} <= matrix[i][j] <= 2^{31} - 1

Follow up:

• A straightforward 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?

TODO Approach

Write your approach here.

TODO Python

class Solution:
    def setZeroes(self, matrix: List[List[int]]) -> None:
        """
        Do not return anything, modify matrix in-place instead.
        """

TODO C++

class Solution {
public:
    void setZeroes(vector<vector<int>>& matrix) {
        
    }
};