← Questions

Count how many rectangles cover each grid cell

0
GoogleCodingLast asked Jul 2026

Rectangles are laid on a grid, each one an update that covers a block of cells. Return, for every cell, how many rectangles cover it, without walking every cell of every rectangle.

One report started with the one-dimensional version (intervals on a line, counted like cars in a parking lot over time) before moving to rectangles.

Write and test your solution herePython in your browser, the question's tests level by level, every submission kept for you.Sign in to start coding