Smallest Substring With Identical Characters I

Description

You are given a binary string s of length n and an integer numOps.

You are allowed to perform the following operation on s at most numOps times:

- Select any index i (where 0 <= i < n) and flip s[i]. If s[i] == '1', change s[i] to '0' and vice versa.

You need to minimize the length of the longest substring of s such that all the characters in the substring are identical.

Return the minimum length after the operations.