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Grokking the Coding Interview Patterns in C#

The K Weakest Rows in a Matrix

Understand how to apply modified binary search to efficiently find the k weakest rows in a binary matrix, where soldiers precede civilians in each row. This lesson teaches you to compare rows by soldier count and index order, developing a pattern-based approach for coding interviews.

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Statement

You are given an m×nm \times n binary matrix of 11’s (representing soldiers) and 00’s (representing civilians). The soldiers are positioned in front of the civilians, i.e., all the 11’s will appear to the left of ...