Search⌘ K
AI Features

Solution: The K Weakest Rows in a Matrix

Explore how to locate the k weakest rows in a binary matrix where soldiers precede civilians using advanced binary search techniques and a max-heap. This lesson guides you through an efficient algorithm that counts soldiers in logarithmic time and tracks the weakest rows, helping you master a useful coding interview pattern involving matrix processing and priority queues.

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  ...