Find Common Characters In Strings With PHP
Find common characters in an array of strings using frequency arrays and minimization logic, handling duplicates and case sensitivity.
1002. Find Common Characters Difficulty: Easy Topics: 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. 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. Solution: The problem asks us to find the common characters that appear in all the stri...