{
    "data": {
        "question": {
            "questionId": "2063",
            "questionFrontendId": "1917",
            "categoryTitle": "Database",
            "boundTopicId": 849603,
            "title": "Leetcodify Friends Recommendations",
            "titleSlug": "leetcodify-friends-recommendations",
            "content": null,
            "translatedTitle": "Leetcodify 好友推荐",
            "translatedContent": null,
            "isPaidOnly": true,
            "difficulty": "Hard",
            "likes": 5,
            "dislikes": 0,
            "isLiked": null,
            "similarQuestions": "[]",
            "contributors": [],
            "langToValidPlayground": null,
            "topicTags": [
                {
                    "name": "Database",
                    "slug": "database",
                    "translatedName": "数据库",
                    "__typename": "TopicTagNode"
                }
            ],
            "companyTagStats": null,
            "codeSnippets": null,
            "stats": "{\"totalAccepted\": \"946\", \"totalSubmission\": \"2.8K\", \"totalAcceptedRaw\": 946, \"totalSubmissionRaw\": 2767, \"acRate\": \"34.2%\"}",
            "hints": [],
            "solution": null,
            "status": null,
            "sampleTestCase": "{\"headers\":{\"Listens\":[\"user_id\",\"song_id\",\"day\"],\"Friendship\":[\"user1_id\",\"user2_id\"]},\"rows\":{\"Listens\":[[1,10,\"2021-03-15\"],[1,11,\"2021-03-15\"],[1,12,\"2021-03-15\"],[2,10,\"2021-03-15\"],[2,11,\"2021-03-15\"],[2,12,\"2021-03-15\"],[3,10,\"2021-03-15\"],[3,11,\"2021-03-15\"],[3,12,\"2021-03-15\"],[4,10,\"2021-03-15\"],[4,11,\"2021-03-15\"],[4,13,\"2021-03-15\"],[5,10,\"2021-03-16\"],[5,11,\"2021-03-16\"],[5,12,\"2021-03-16\"]],\"Friendship\":[[1,2]]}}",
            "metaData": "{\n  \"mysql\": [\n    \"Create table If Not Exists Listens (user_id int, song_id int, day date)\",\n    \"Create table If Not Exists Friendship (user1_id int, user2_id int)\"\n  ],\n  \"mssql\": [\n    \"Create table Listens (user_id int, song_id int, day date)\",\n    \"Create table Friendship (user1_id int, user2_id int)\"\n  ],\n  \"oraclesql\": [\n    \"Create table Listens (user_id int, song_id int, day date)\",\n    \"Create table Friendship (user1_id int, user2_id int)\",\n    \"ALTER SESSION SET nls_date_format='YYYY-MM-DD'\"\n  ],\n  \"database\": true\n}",
            "judgerAvailable": true,
            "judgeType": "large",
            "mysqlSchemas": [
                "Create table If Not Exists Listens (user_id int, song_id int, day date)",
                "Create table If Not Exists Friendship (user1_id int, user2_id int)",
                "Truncate table Listens",
                "insert into Listens (user_id, song_id, day) values ('1', '10', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('1', '11', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('1', '12', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('2', '10', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('2', '11', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('2', '12', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('3', '10', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('3', '11', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('3', '12', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('4', '10', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('4', '11', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('4', '13', '2021-03-15')",
                "insert into Listens (user_id, song_id, day) values ('5', '10', '2021-03-16')",
                "insert into Listens (user_id, song_id, day) values ('5', '11', '2021-03-16')",
                "insert into Listens (user_id, song_id, day) values ('5', '12', '2021-03-16')",
                "Truncate table Friendship",
                "insert into Friendship (user1_id, user2_id) values ('1', '2')"
            ],
            "enableRunCode": true,
            "envInfo": "{\"mysql\":[\"MySQL\",\"<p>\\u7248\\u672c\\uff1a<code>MySQL 8.0<\\/code><\\/p>\"],\"mssql\":[\"MS SQL Server\",\"<p>mssql server 2019.<\\/p>\"],\"oraclesql\":[\"Oracle\",\"<p>Oracle Sql 11.2.<\\/p>\"]}",
            "book": null,
            "isSubscribed": false,
            "isDailyQuestion": false,
            "dailyRecordStatus": null,
            "editorType": "CKEDITOR",
            "ugcQuestionId": null,
            "style": "LEETCODE",
            "exampleTestcases": "{\"headers\":{\"Listens\":[\"user_id\",\"song_id\",\"day\"],\"Friendship\":[\"user1_id\",\"user2_id\"]},\"rows\":{\"Listens\":[[1,10,\"2021-03-15\"],[1,11,\"2021-03-15\"],[1,12,\"2021-03-15\"],[2,10,\"2021-03-15\"],[2,11,\"2021-03-15\"],[2,12,\"2021-03-15\"],[3,10,\"2021-03-15\"],[3,11,\"2021-03-15\"],[3,12,\"2021-03-15\"],[4,10,\"2021-03-15\"],[4,11,\"2021-03-15\"],[4,13,\"2021-03-15\"],[5,10,\"2021-03-16\"],[5,11,\"2021-03-16\"],[5,12,\"2021-03-16\"]],\"Friendship\":[[1,2]]}}",
            "__typename": "QuestionNode"
        }
    }
}