华为OD最新面试手撕代码：被围绕的区域_华为od 手撕代码

作者：我家自动化 | 2024-08-02 14:58:29

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华为od 手撕代码

题目

被围绕的区域

给你一个 m x n 的矩阵 board ，由若干字符 'X' 和 'O' ，找到所有被 'X' 围绕的区域，并将这些区域里所有的 'O' 用 'X' 填充。

示例 1


输入：board=[
["X”,"X","X","0","X","X","X","X"],
["X","0","0","X","0","X","0","0"]
["X","0","X","X","0","0","0","X"]
["X","X","X","0","X","X","X","X"J,
["0","0”,"0”,"X","X","X","X","X"]
["X","0“,"X","X","X","X","X","X"]
输出：[
["X","X","X","0","X","X"

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