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You are given a strings 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 most k times. Return the length of the longest substring containing the same letter you can get after performing the above operations. Example 1: Input: s= "ABAB", k = 2 Output: 4 Explanation: Replace the two 'A's with two 'B's or vice versa. Example 2: Input: s= "AABABBA", k = 1 Output: 4 Explanation: Replace the one 'A' in the middle with 'B' and form "AABBBBA". The substring "BBBB" has the longest repeating letters, which is 4. Constraints: 1 <= s.length <= 105 s consists of only uppercase English letters. 0 <= k <= s.length

You are given a strings 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 most k times. Return the length of the longest substring containing the same letter you can get after performing the above operations. Example 1: Input: s= "ABAB", k = 2 Output: 4 Explanation: Replace the two 'A's with two 'B's or vice versa. Example 2: Input: s= "AABABBA", k = 1 Output: 4 Explanation: Replace the one 'A' in the middle with 'B' and form "AABBBBA". The substring "BBBB" has the longest repeating letters, which is 4. Constraints: 1 <= s.length <= 105 s consists of only uppercase English letters. 0 <= k <= s.length

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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You are given a strings 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. Return the length of the longest substring containing the same letter you can get after performing the above operations. Example 1: Input: s = "ABAB", k = 2 Output: 4 Explanation: Replace the two 'A's with two 'B's or vice versa. Example 2: Input: s = Output: 4 "AABABBA", k = 1 Explanation: Replace the one 'A' in the middle with 'B' and form "AABBBBA". The substring "BBBB" has the longest repeating letters, which is 4. Constraints: 1 <=s.length <= 105 s consists of only uppercase English letters. • 0 <= k <= s.length
Transcribed Image Text:You are given a strings 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. Return the length of the longest substring containing the same letter you can get after performing the above operations. Example 1: Input: s = "ABAB", k = 2 Output: 4 Explanation: Replace the two 'A's with two 'B's or vice versa. Example 2: Input: s = Output: 4 "AABABBA", k = 1 Explanation: Replace the one 'A' in the middle with 'B' and form "AABBBBA". The substring "BBBB" has the longest repeating letters, which is 4. Constraints: 1 <=s.length <= 105 s consists of only uppercase English letters. • 0 <= k <= s.length
Given a strings and an integer k, return the length of the longest substring of s such that the frequency of each characte in this substring is greater than or equal to k. Example 1: Input: s= "aaabb", k = 3 Output: 3 Explanation: The longest substring is "aaa", as 'a' is repeated 3 times. Example 2: Input: s="ababbc", k = 2 Output: 5 Explanation: The longest substring is "ababb", as 'a' is repeated 2 times and 'b' is repeated 3 times. Constraints: • 1 <=s.length <= 104 s consists of only lowercase English letters. 1 <= k <= 105
Transcribed Image Text:Given a strings and an integer k, return the length of the longest substring of s such that the frequency of each characte in this substring is greater than or equal to k. Example 1: Input: s= "aaabb", k = 3 Output: 3 Explanation: The longest substring is "aaa", as 'a' is repeated 3 times. Example 2: Input: s="ababbc", k = 2 Output: 5 Explanation: The longest substring is "ababb", as 'a' is repeated 2 times and 'b' is repeated 3 times. Constraints: • 1 <=s.length <= 104 s consists of only lowercase English letters. 1 <= k <= 105
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