problem867

README

< Previous 　　　　　　　　　　　　　　　　 Next >

867. Transpose Matrix (Easy)

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

Related Topics

[Array]

Hints

Hint 1

We don't need any special algorithms to do this. You just need to know what the transpose of a matrix looks like. Rows become columns and vice versa!