1002. Find Common Characters

Easy

10 Points

Array

Hash Table

String

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.

Examples

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.