Longest Balanced Substring II
You are given a string s consisting only of the characters 'a', 'b', and 'c'.
A substring of s is called balanced if all distinct characters in the substring appear the same number of times.
Return the length of the longest balanced substring of s.
Example 1
Input
s = "abbac"Output
4The longest balanced substring is
"abba" because both distinct characters 'a' and 'b' each appear exactly 2 times.Example 2
Input
s = "aabcc"Output
3The longest balanced substring is
"abc" because all distinct characters 'a', 'b' and 'c' each appear exactly 1 time.Constraints
- 1 <= s.length <= 10^5
- s contains only the characters 'a', 'b', and 'c'.