# -*- coding: utf-8 -*-

"""

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. 1 <= A.length <= 1000

2. 1 <= A[0].length <= 1000

"""

class Solution:

def transpose(self, A):

"""

:type A: List[List[int]]

:rtype: List[List[int]]

>>> test1 = [[1,2,3],[4,5,6],[7,8,9]]

>>> test2 = [[1,2,3],[4,5,6]]

>>> s = Solution()

>>> s.transpose(test1)

[[1, 4, 7], [2, 5, 8], [3, 6, 9]]

>>> s.transpose(test2)

[[1, 4], [2, 5], [3, 6]]

"""

r = []

for i in zip(*A):

r.append(list(i))

return r

if __name__ == '__main__':

import doctest

doctest.testmod(verbose=True)