Longest Common Prefix
Basic String Manipulation DSA practice problem on Onlearn.
Difficulty: easy.
Topics: What is the Longest Common Prefix problem and how can it be solved?, Arrays, Strings, Loops, Conditional Statements, Time Complexity, Space Complexity, Big O Notation, String Manipulation, iterative algorithms, string, string properties, algorithm comparison, sorting algorithms, divide and conquer, Prefix & Suffix, String Comparison.
Problem Statement Given an array of n strings, find the longest common prefix among all of them. If there is no common prefix, return an empty string "". A string s is a prefix of string t if s appears at the beginning of t. For example, "flow" is a prefix of "flower". 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. Input Specification The input consists of a single array of strings, strs. Output Specification Return a single string representing the longest common prefix. Constraints 1 <= strs.length <= 200 0 <= strs[i].length <= 200 strs[i] consists of only lowercase English letters.