Longest Common Prefix
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What is Longest Common Prefix?
Given an array of strings, find the longest common prefix among all of them. One approach inserts all strings into a trie and traverses down as long as each node has exactly one child and is not a word end. This problem is simpler than the others but it teaches you that tries are not only for search, they also encode shared structure between strings.
Free resources to learn Longest Common Prefix
More in stage 13: Tries
Longest Common Prefix: common questions
Can I learn Longest Common Prefix in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Longest Common Prefix in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Longest Common Prefix tutorial for beginners?
It is lesson 79 of 137 in the free LeetCode roadmap, in stage 13, Tries. If you are new to LeetCode, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.