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Grokking the Coding Interview Patterns in Python

Solution: Flip Columns For Maximum Number of Equal Rows

Understand how to transform a binary matrix by flipping columns to maximize the number of identical rows. This lesson teaches you to identify row patterns using a comparison method, count frequencies, and implement an efficient solution with O(m×n) time complexity.

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Statement

Given an m×nm \times n binary matrix, matrix, return the maximum number of rows where all values become identical after flipping any number of columns. Flipping a column means changing every 00 to 11 ...