leetcode-problemset/leetcode/originData/[no content]number-of-good-binary-strings.json

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            "questionId": "2672",
            "questionFrontendId": "2533",
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            "title": "Number of Good Binary Strings",
            "titleSlug": "number-of-good-binary-strings",
            "content": null,
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            "difficulty": "Medium",
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            "similarQuestions": "[{\"title\": \"Special Binary String\", \"titleSlug\": \"special-binary-string\", \"difficulty\": \"Hard\", \"translatedTitle\": null}]",
            "exampleTestcases": "2\n3\n1\n2\n4\n4\n4\n3",
            "categoryTitle": "Algorithms",
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            "stats": "{\"totalAccepted\": \"213\", \"totalSubmission\": \"312\", \"totalAcceptedRaw\": 213, \"totalSubmissionRaw\": 312, \"acRate\": \"68.3%\"}",
            "hints": [
                "If we maintain DP(i, x) where i denotes the length and x denotes the last written integer (0 or 1), then it is not hard to solve in O(maxLength * max(zeroGroup, oneGroup)).",
                "Notice that from DP(i, 0) we only have a transition to DP(j, 1) where (j - i) mod oneGroup == 0 and j > i. Similarly with DP(i,1). So we can use prefix sum to optimize our DP and solve it in O(maxLength)."
            ],
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            "sampleTestCase": "2\n3\n1\n2",
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