867. Transpose Matrix

Given a 2D integer array matrix, return the transpose of matrix.

The transpose of a matrix flipped over its main diagonal, switching the matrix's row and column indices.

Example 1:
Input: matrix = [[1,2,3],[4,5,6],[7,8,9]]
Output: [[1,4,7],[2,5,8],[3,6,9]]

Example 2:
Input: matrix = [[1,2,3],[4,5,6]]
Output: [[1,4],[2,5],[3,6]]

Constraints:
m == matrix.length
n == matrix[i].length
1 <= m, n <= 1000
1 <= m * n <= 10**5
-10**9 <= matrix[i][j] <= 10**9

Submission Screenshot