Patterns: stacks, queues, lists, matrices, bits

Episode 27 Matrix Problems

21 min · Java · Quiz

Title card of Episode 27: Matrix Problems

▶ This video is coming to YouTube soon.

You'll solve LeetCode 36, 48, 54 and 73 on 2D arrays: box indexes, transpose + reverse, shrinking boundaries and in-place markers.

Quiz: test yourself

The 3 questions from the end of the episode. Pick an answer to see why it's right.