1156 - Swap For Longest Repeated Character Substring.

Medium

You are given a string text. You can swap two of the characters in the text.

Return the length of the longest substring with repeated characters.

Example 1:

Input: text = "ababa"

Output: 3

Explanation: We can swap the first 'b' with the last 'a', or the last 'b' with the first 'a'. Then, the longest repeated character substring is "aaa" with length 3.

Example 2:

Input: text = "aaabaaa"

Output: 6

Explanation: Swap 'b' with the last 'a' (or the first 'a'), and we get longest repeated character substring "aaaaaa" with length 6.

Example 3:

Input: text = "aaaaa"

Output: 5

Explanation: No need to swap, longest repeated character substring is "aaaaa" with length is 5.

Constraints:

• <code>1 <= text.length <= 2 * 10⁴</code>

• text consist of lowercase English characters only.