easyArrayHash TableString 0 views
Find Common Characters
Given a string array words, return an array of all characters that show up in all strings within the words (including duplicates).
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.
Example 1
Input: words = ["bella","label","roller"]
Output: ["e","l","l"]
Example 2
Input: words = ["cool","lock","cook"]
Output: ["c","o"]
Constraints
- 1 <= words.length <= 100
- 1 <= words[i].length <= 100
- words[i] consists of lowercase English letters.
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