{ "data": { "question": { "questionId": "1044", "questionFrontendId": "1002", "categoryTitle": "Algorithms", "boundTopicId": 3099, "title": "Find Common Characters", "titleSlug": "find-common-characters", "content": "

Given a string array words, return an array of all characters that show up in all strings within the words (including duplicates). You may return the answer in any order.

\n\n

 

\n

Example 1:

\n
Input: words = [\"bella\",\"label\",\"roller\"]\nOutput: [\"e\",\"l\",\"l\"]\n

Example 2:

\n
Input: words = [\"cool\",\"lock\",\"cook\"]\nOutput: [\"c\",\"o\"]\n
\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "查找共用字符", "translatedContent": "给你一个字符串数组 words ,请你找出所有在 words 的每个字符串中都出现的共用字符(包括重复字符),并以数组形式返回。你可以按 任意顺序 返回答案。\n

 

\n\n

示例 1:

\n\n
\n输入:words = [\"bella\",\"label\",\"roller\"]\n输出:[\"e\",\"l\",\"l\"]\n
\n\n

示例 2:

\n\n
\n输入:words = [\"cool\",\"lock\",\"cook\"]\n输出:[\"c\",\"o\"]\n
\n\n

 

\n\n

提示:

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