Set Matrix Zeroes
MediumP2Coding
Given an m x n integer matrix, if an element is 0, set its entire row and its entire column to 0. Modify the matrix in place; the function returns nothing.
Only zeros that were in the original matrix cause rows and columns to be cleared. Zeros created by the operation do not spread further.
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]]
Example 3
- Input
- matrix = [[1]]
- Output
- [[1]]
Constraints
- 1 <= m, n <= 200
- -2^31 <= matrix[i][j] <= 2^31 - 1
Hints
Give it a real attempt first. Run shows which examples fail.
Saved automatically
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