Ezvor

3391. Design a 3D Binary Matrix with Efficient Layer Tracking

MediumArray Preparing judge… LeetCode
ArrayHash TableDesignHeap (Priority Queue)MatrixOrdered Set

Hints

Hint 1
Keep track of the number of 1’s on each matrix.
Hint 2
Use a data structure that allows to efficiently insert, delete or get the biggest pair on a list of pairs.