LeetCode - Longest Common Prefix

The problem Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string "". Example 1: Input: strs = ["flower","flow","flight"] Output: "fl" Example 2: Input: strs = ["dog","racecar","car"] Output: "" Explanation: There is no common prefix among the input strings. Constraints: 1 <= strs.length <= 200 0 <= strs[i].length <= 200 strs[i] consists of only lowercase English letters if it is non-empty. Explanation I’m trying to add a little bit of life to my posts, so I decided to lay down some thought process behind the solution. Please go easy on me. ...

August 22, 2026 · 3 min · Dmytro Chumakov