48. Rotate Image

Practice Rotate Image for free on NudgeCode: Medium, Array & Hash Table pattern. Write it in Python or JavaScript, run the tests in your browser, and ask for a hint when you are stuck.

matrix is an n x n grid. Rotate it 90 degrees clockwise in place, without allocating a second matrix, and return nothing.

Example

matrix = [[1,2,3],[4,5,6],[7,8,9]]  ->  [[7,4,1],[8,5,2],[9,6,3]]

Constraints