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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 guides you through a horizontal scanning technique in C# that incrementally trims the prefix until it matches all strings or returns empty if none exists. Understand the time and space complexities involved in this common string algorithm challenge.

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 ...