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

The K Weakest Rows in a Matrix

Explore how to solve the problem of finding the k weakest rows in a binary matrix where soldiers precede civilians. Learn to apply modified binary search techniques to efficiently count soldiers and order rows by strength, developing skills useful for coding interviews.

We'll cover the following...

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 ...