Leetcode Problem 2450. Number of Distinct Binary Strings After Applying Operations

2450. Number of Distinct Binary Strings After Applying Operations

Leetcode Solutions

Counting Distinct Binary Strings by Flipping Substrings

  1. Calculate the number of starting positions for substrings of size k as P = len(s) - k + 1.
  2. Compute 2^P, which represents the number of distinct strings we can obtain.
  3. Return the result modulo 10^9 + 7 to handle potential integer overflow issues.
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Brute Force Approach with Bitmasking

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