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Problem: Longest Common Prefix

easy
15 min
Explore how to find the longest common prefix in an array of strings by using trie data structures. Understand problem constraints, practice coding solutions, and improve your ability to optimize search and prefix problems in coding interviews.

Statement

Given an array of strings, strs, write a function to find the longest common prefix string in strs. If there is no common prefix, return an empty string, "".

Constraints:

  • 11 \leq strs.length 200\leq 200

  • 00 \leq strs[i].length 200\leq 200

  • strs[i] consists of only lowercase English letters.

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Tap here to switch tabs
Problem
Submissions

Problem: Longest Common Prefix

easy
15 min
Explore how to find the longest common prefix in an array of strings by using trie data structures. Understand problem constraints, practice coding solutions, and improve your ability to optimize search and prefix problems in coding interviews.

Statement

Given an array of strings, strs, write a function to find the longest common prefix string in strs. If there is no common prefix, return an empty string, "".

Constraints:

  • 11 \leq strs.length 200\leq 200

  • 00 \leq strs[i].length 200\leq 200

  • strs[i] consists of only lowercase English letters.

Unlock AI-Powered LearningUpgrade to smarter learning with instant explanations of Ask Agent, Personalized Interview Prep, Real-World Projects, 3 AI Mock Interviews per month, and Personalized Paths