Leetcode 1002. Find Common Characters
Mar 22, 2021
easy
Given an array A of strings made only from lowercase letters, return a list of all characters that show up in all strings within the list (including duplicates). For example, if a character occurs 3 times in all strings but not 4 times, you need to include that character three times in the final answer.
You may return the answer in any order.
Example 1:
Input: ["bella","label","roller"]
Output: ["e","l","l"]Example 2:
Input: ["cool","lock","cook"]
Output: ["c","o"]
