🔑Beginner-Friendly Guide 'Longest Balanced Substring II' - Problem 3714 (C++, Python, JavaScript)

Finding patterns in a sea of characters is a fundamental skill in software engineering. This problem challenges us to find the longest stretch of text where every unique character appears exactly the same number of times, a task that requires both precision and efficient data tracking. Problem Summary You're given: A string containing only the characters 'a', 'b', and 'c'. Your goal: Find the length of the longest substring where every distinct character present in that substring occurs with the same frequency. Intuition To solve this efficiently, we need to consider three different scenarios for a "balanced" substring: Single Character: Any sequence of the same character (like "aaaa") is technically balanced because the only distinct character ('a') appears an equal number of times. Two Distinct Characters: A substring with exactly two types of characters (e.g., "aabb") where the count of the first equals the count of the second. Three Distinct Characters: A substring containing 'a',