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g0801_0900.s0867_transpose_matrix.readme.md Maven / Gradle / Ivy

867\. Transpose Matrix

Easy

Given a 2D integer array `matrix`, return _the **transpose** of_ `matrix`.

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

![](https://assets.leetcode.com/uploads/2021/02/10/hint_transpose.png)

**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 <= 105
*   -109 <= matrix[i][j] <= 109