Rotate a Matrix Clockwise | Dataford Interview Questions

How to rotate matrix clockwise?

Implement rotate_matrix(matrix) to rotate a square matrix 90 degrees clockwise in place and return the same matrix. The rotation must use O(1) auxiliary space, excluding the matrix itself. The input is a non-empty list of equal-length lists containing integers.

Constraints

1 <= n <= 1000
matrix has exactly n rows and n columns
-10^9 <= matrix[row][col] <= 10^9
Modify the matrix in place
Use O(1) auxiliary space

Function Signature

def rotate_matrix(matrix):

Your question is Rotate a Matrix Clockwise. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

How to rotate matrix clockwise?

Constraints

1 <= n <= 1000
matrix has exactly n rows and n columns
-10^9 <= matrix[row][col] <= 10^9
Modify the matrix in place
Use O(1) auxiliary space

Function Signature

def rotate_matrix(matrix):

Your question is Rotate a Matrix Clockwise. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.