{ "data": { "question": { "questionId": "3526", "questionFrontendId": "3239", "boundTopicId": null, "title": "Minimum Number of Flips to Make Binary Grid Palindromic I", "titleSlug": "minimum-number-of-flips-to-make-binary-grid-palindromic-i", "content": "

You are given an m x n binary matrix grid.

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A row or column is considered palindromic if its values read the same forward and backward.

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You can flip any number of cells in grid from 0 to 1, or from 1 to 0.

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Return the minimum number of cells that need to be flipped to make either all rows palindromic or all columns palindromic.

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Example 1:

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Input: grid = [[1,0,0],[0,0,0],[0,0,1]]

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Output: 2

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Explanation:

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\"\"

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Flipping the highlighted cells makes all the rows palindromic.

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Example 2:

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Input: grid = [[0,1],[0,1],[0,0]]

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Output: 1

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Explanation:

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\"\"

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Flipping the highlighted cell makes all the columns palindromic.

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Example 3:

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Input: grid = [[1],[0]]

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Output: 0

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Explanation:

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All rows are already palindromic.

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Constraints:

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