Solution 3 for Scaler Topics Fortnightly Contest - 25
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Replacement Score
This article is part of the Scaler Topics Fortnightly Contest - 25
Solution Approach
The only thing that matters is the number of consecutive 0s. The answer is the sum of the number of consecutive 0s - 1 for each string of consecutive 0s. During each query, the answer change depends only on the left and the right index. If the current character changes to ‘1’, the score decreases for each of the left and right elements being ‘0’. On the other hand, if it changes to ‘0’, there is an increase for the same cases.
Time Complexity: O(|A| + |B|) Space Complexity: O(|B|)
C++ Implementation
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