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            "questionFrontendId": "100177",
            "categoryTitle": "Database",
            "boundTopicId": 2653971,
            "title": "Binary Tree Nodes",
            "titleSlug": "binary-tree-nodes",
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            "similarQuestions": "[]",
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            "stats": "{\"totalAccepted\": \"23\", \"totalSubmission\": \"30\", \"totalAcceptedRaw\": 23, \"totalSubmissionRaw\": 30, \"acRate\": \"76.7%\"}",
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            "sampleTestCase": "{\"headers\":{\"Tree\":[\"N\",\"P\"]},\"rows\":{\"Tree\":[[1,2],[3,2],[6,8],[9,8],[2,5],[8,5],[5,null]]}}",
            "metaData": "{\"mysql\":[\"Create table If Not Exists Tree (N int,P int)\"],\"mssql\":[\"Create table Tree (N int,P int)\"],\"oraclesql\":[\"Create table Tree (N int,P int)\"],\"database\":true,\"name\":\"binary_tree_nodes\",\"pythondata\":[\"Tree = pd.DataFrame([], columns=['N', 'P']).astype({'N':'Int64', 'P':'Int64'})\"],\"postgresql\":[\"Create table If Not Exists Tree (N int,P int)\\n\"],\"database_schema\":{\"Tree\":{\"N\":\"INT\",\"P\":\"INT\"}}}",
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                "insert into Tree (N, P) values ('3', '2')",
                "insert into Tree (N, P) values ('6', '8')",
                "insert into Tree (N, P) values ('9', '8')",
                "insert into Tree (N, P) values ('2', '5')",
                "insert into Tree (N, P) values ('8', '5')",
                "insert into Tree (N, P) values ('5', 'None')"
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            "enableRunCode": true,
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