Alternating Character Substrings

Question

Given a string `mealCodes` consisting of only two distinct characters, 'V' and 'N', find the total number of substrings where the characters alternate between 'V' and 'N'.

DSAMaster · Accepted Answer

To optimally solve the Alternating Character Substrings problem involving Strings, it is important to analyze constraints. Time Complexity: O(n), Space Complexity: O(1). A more efficient approach involves iterating through the string once and using two pointers to track the start and end of potential substrings. This approach would have a time complexity of O(n) and a space complexity of O(1), making it more efficient for large inputs.

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