#911Medium#56 in ByteDance's list· asked at 22 companies
Longest Repeating Character Replacement
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What we know
Example 1
Input: s = "ABAB", k = 2 Output: 4
Replace both A's with B's (or vice versa).
Example 2
Input: s = "AABABBA", k = 1 Output: 4
Replace the middle A to get "AABBBBA"; the substring "BBBB" has length 4.
Constraints
- •
1 <= s.length <= 10^5 - •
sconsists of only uppercase English letters. - •
0 <= k <= s.length