{ "data": { "question": { "questionId": "424", "questionFrontendId": "424", "boundTopicId": null, "title": "Longest Repeating Character Replacement", "titleSlug": "longest-repeating-character-replacement", "content": "

You are given a string s and an integer k. You can choose any character of the string and change it to any other uppercase English character. You can perform this operation at most k times.

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Return the length of the longest substring containing the same letter you can get after performing the above operations.

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Example 1:

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\nInput: s = "ABAB", k = 2\nOutput: 4\nExplanation: Replace the two 'A's with two 'B's or vice versa.\n
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Example 2:

\n\n
\nInput: s = "AABABBA", k = 1\nOutput: 4\nExplanation: Replace the one 'A' in the middle with 'B' and form "AABBBBA".\nThe substring "BBBB" has the longest repeating letters, which is 4.\n
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\n

Constraints:

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C# 10 with .NET 6 runtime

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