Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in C#

Solution: Flip Columns For Maximum Number of Equal Rows

Explore how to identify and flip columns in a binary matrix to maximize rows with identical values. Understand the use of pattern strings and frequency mapping to solve this problem efficiently with O(m × n) complexity.

We'll cover the following...

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 and every 11 to 00 in that column.

Constraints:

  • ...