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Published: Jul 18, 2021 License: MIT Imports: 0 Imported by: 0

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1002. Find Common Characters

[简单] 数组 哈希表


给定仅有小写字母组成的字符串数组 A,返回列表中的每个字符串中都显示的全部字符(包括重复字符)组成的列表。例如,如果一个字符在每个字符串中出现 3 次,但不是 4 次,则需要在最终答案中包含该字符 3 次。

你可以按任意顺序返回答案。

 

示例 1:

输入:["bella","label","roller"]
输出:["e","l","l"]


示例 2:

输入:["cool","lock","cook"]
输出:["c","o"]


 

提示:


	1 <= A.length <= 100
	1 <= A[i].length <= 100
	A[i][j] 是小写字母


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