Given a string, s, and an integer, k, find the length of the longest substring in s, where all characters are identical, after replacing, at most, k characters with any other uppercase English character.
Constraints:
1≤ s.length ≤103
s consists of only uppercase English characters.
0≤ k ≤ s.length
So far, you’ve probably brainstormed some approaches and have an idea of how to solve this problem. Let’s explore some of these approaches and figure out which one to follow based on considerations such as time complexity and any implementation constraints.
A brute force method checks every possible substring to see if it can be transformed into a string of identical characters with at most k replacements. Here’s how it works: ...