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Problem: Longest Common Prefix

Explore how to identify the longest common prefix shared by all strings in an array. This lesson helps you understand horizontal scanning techniques and string matching in Java, enabling you to implement a solution with clear time and space complexity analysis.

Statement

Given an array of strings strs, find the longest common prefix shared among all the strings in the array.

If no common prefix exists, return an empty string "".

Constraints:

  • 11 \leq strs.length 200\leq 200

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