#3239
Minimum Number of Flips to Make Binary Grid Palindromic I
medium · 74.9% accepted · 82 likes · top 86%
array · two pointers · matrix
Description
You are given an m x n binary matrix grid.
A row or column is considered palindromic if its values read the same forward and backward.
You can flip any number of cells in grid from 0 to 1, or from 1 to 0.
Return the minimum number of cells that need to be flipped to make either all rows palindromic or all columns palindromic.
Solution