Python Solution Explained: Finding the Longest Common Prefix in a String Array

A developer on DEV Community has shared a Python solution for the classic 'Longest Common Prefix' coding problem, where the goal is to find the longest shared starting sequence among an array of strings. The approach uses the first string as a reference and iterates through its characters, comparing each position against all other strings in the array. Two exit conditions are checked at every step: whether the current index exceeds a string's length, or whether a character mismatch is found. If either condition is met, the function immediately returns the prefix collected so far. Using the example input of 'flower', 'flow', and 'flight', the algorithm correctly identifies 'fl' as the longest common prefix.