{ "data": { "question": { "questionId": "2146", "questionFrontendId": "2018", "categoryTitle": "Algorithms", "boundTopicId": 1012217, "title": "Check if Word Can Be Placed In Crossword", "titleSlug": "check-if-word-can-be-placed-in-crossword", "content": "

You are given an m x n matrix board, representing the current state of a crossword puzzle. The crossword contains lowercase English letters (from solved words), ' ' to represent any empty cells, and '#' to represent any blocked cells.

\n\n

A word can be placed horizontally (left to right or right to left) or vertically (top to bottom or bottom to top) in the board if:

\n\n\n\n

Given a string word, return true if word can be placed in board, or false otherwise.

\n\n

 

\n

Example 1:

\n\"\"\n
\nInput: board = [["#", " ", "#"], [" ", " ", "#"], ["#", "c", " "]], word = "abc"\nOutput: true\nExplanation: The word "abc" can be placed as shown above (top to bottom).\n
\n\n

Example 2:

\n\"\"\n
\nInput: board = [[" ", "#", "a"], [" ", "#", "c"], [" ", "#", "a"]], word = "ac"\nOutput: false\nExplanation: It is impossible to place the word because there will always be a space/letter above or below it.
\n\n

Example 3:

\n\"\"\n
\nInput: board = [["#", " ", "#"], [" ", " ", "#"], ["#", " ", "c"]], word = "ca"\nOutput: true\nExplanation: The word "ca" can be placed as shown above (right to left). \n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "判断单词是否能放入填字游戏内", "translatedContent": "

给你一个 m x n 的矩阵 board ，它代表一个填字游戏 当前 的状态。填字游戏格子中包含小写英文字母（已填入的单词），表示 空 格的 ' ' 和表示 障碍 格子的 '#' 。

\n\n

如果满足以下条件，那么我们可以 水平 （从左到右 或者 从右到左）或 竖直 （从上到下 或者 从下到上）填入一个单词：

\n\n\n\n

给你一个字符串 word ，如果 word 可以被放入 board 中，请你返回 true ，否则请返回 false 。

\n\n

 

\n\n

示例 1：

\n\n

\"\"

\n\n
\n输入：board = [[\"#\", \" \", \"#\"], [\" \", \" \", \"#\"], [\"#\", \"c\", \" \"]], word = \"abc\"\n输出：true\n解释：单词 \"abc\" 可以如上图放置（从上往下）。\n
\n\n

示例 2：

\n\n

\"\"

\n\n
\n输入：board = [[\" \", \"#\", \"a\"], [\" \", \"#\", \"c\"], [\" \", \"#\", \"a\"]], word = \"ac\"\n输出：false\n解释：无法放置单词，因为放置该单词后上方或者下方相邻格会有空格。
\n\n

示例 3：

\n\n

\"\"

\n\n
\n输入：board = [[\"#\", \" \", \"#\"], [\" \", \" \", \"#\"], [\"#\", \" \", \"c\"]], word = \"ca\"\n输出：true\n解释：单词 \"ca\" 可以如上图放置（从右到左）。\n
\n\n

 

\n\n

提示：

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