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g1001_1100.s1002_find_common_characters.readme.md Maven / Gradle / Ivy

1002\. Find Common Characters

Easy

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.