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Problem: Longest Common Prefix

Easy
15 min
Explore techniques to identify the longest common prefix in an array of strings by applying Trie data structure patterns. This lesson helps you understand the problem constraints and implement solutions that optimize search and prefix detection for 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.

Problem
Ask
Submissions

Problem: Longest Common Prefix

Easy
15 min
Explore techniques to identify the longest common prefix in an array of strings by applying Trie data structure patterns. This lesson helps you understand the problem constraints and implement solutions that optimize search and prefix detection for 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.