Leetcode 867. Transpose Matrix

Seawolf

Given a matrix A, return the transpose of A.

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





Example 1:

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

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


Note:

1 <= A.length <= 1000
1 <= A[0].length <= 1000

class Solution:
    def transpose(self, A: List[List[int]]) -> List[List[int]]:
        result = [[0 for _ in A] for _ in A[0]]
        for i in range(len(A[0])):
            for j in range(len(A)):
                result[i][j] = A[j][i]
                
        return result