{ "data": { "question": { "questionId": "2017", "questionFrontendId": "1888", "boundTopicId": null, "title": "Minimum Number of Flips to Make the Binary String Alternating", "titleSlug": "minimum-number-of-flips-to-make-the-binary-string-alternating", "content": "

You are given a binary string s. You are allowed to perform two types of operations on the string in any sequence:

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Return the minimum number of type-2 operations you need to perform such that s becomes alternating.

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The string is called alternating if no two adjacent characters are equal.

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Example 1:

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\nInput: s = "111000"\nOutput: 2\nExplanation: Use the first operation two times to make s = "100011".\nThen, use the second operation on the third and sixth elements to make s = "101010".\n
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Example 2:

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\nInput: s = "010"\nOutput: 0\nExplanation: The string is already alternating.\n
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Example 3:

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\nInput: s = "1110"\nOutput: 1\nExplanation: Use the second operation on the second element to make s = "1010".\n
\n\n

 

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Constraints:

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Most standard library headers are already included automatically for your convenience.

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OpenJDK 17. Java 8 features such as lambda expressions and stream API can be used.

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Python 2.7.12.

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C# 10 with .NET 6 runtime

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Ruby 3.1

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Go 1.21

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Python 3.10.

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