{ "data": { "question": { "questionId": "696", "questionFrontendId": "696", "boundTopicId": null, "title": "Count Binary Substrings", "titleSlug": "count-binary-substrings", "content": "

Give a binary string s, return the number of non-empty substrings that have the same number of 0's and 1's, and all the 0's and all the 1's in these substrings are grouped consecutively.

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Substrings that occur multiple times are counted the number of times they occur.

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Example 1:

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\nInput: s = "00110011"\nOutput: 6\nExplanation: There are 6 substrings that have equal number of consecutive 1's and 0's: "0011", "01", "1100", "10", "0011", and "01".\nNotice that some of these substrings repeat and are counted the number of times they occur.\nAlso, "00110011" is not a valid substring because all the 0's (and 1's) are not grouped together.\n
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Example 2:

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\nInput: s = "10101"\nOutput: 4\nExplanation: There are 4 substrings: "10", "01", "10", "01" that have equal number of consecutive 1's and 0's.\n
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Constraints:

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