{
    "data": {
        "question": {
            "questionId": "597",
            "questionFrontendId": "597",
            "boundTopicId": null,
            "title": "Friend Requests I: Overall Acceptance Rate",
            "titleSlug": "friend-requests-i-overall-acceptance-rate",
            "content": null,
            "translatedTitle": null,
            "translatedContent": null,
            "isPaidOnly": true,
            "difficulty": "Easy",
            "likes": 297,
            "dislikes": 754,
            "isLiked": null,
            "similarQuestions": "[]",
            "exampleTestcases": "{\"headers\":{\"FriendRequest\":[\"sender_id\",\"send_to_id\",\"request_date\"],\"RequestAccepted\":[\"requester_id\",\"accepter_id\",\"accept_date\"]},\"rows\":{\"FriendRequest\":[[1,2,\"2016/06/01\"],[1,3,\"2016/06/01\"],[1,4,\"2016/06/01\"],[2,3,\"2016/06/02\"],[3,4,\"2016/06/09\"]],\"RequestAccepted\":[[1,2,\"2016/06/03\"],[1,3,\"2016/06/08\"],[2,3,\"2016/06/08\"],[3,4,\"2016/06/09\"],[3,4,\"2016/06/10\"]]}}",
            "categoryTitle": "Database",
            "contributors": [],
            "topicTags": [
                {
                    "name": "Database",
                    "slug": "database",
                    "translatedName": null,
                    "__typename": "TopicTagNode"
                }
            ],
            "companyTagStats": null,
            "codeSnippets": null,
            "stats": "{\"totalAccepted\": \"71.6K\", \"totalSubmission\": \"170.4K\", \"totalAcceptedRaw\": 71633, \"totalSubmissionRaw\": 170378, \"acRate\": \"42.0%\"}",
            "hints": [
                "Still remember how to count the number of rows in a table?",
                "What is the keyword to filter the duplicated records in a table?"
            ],
            "solution": {
                "id": "161",
                "canSeeDetail": false,
                "paidOnly": true,
                "hasVideoSolution": false,
                "paidOnlyVideo": true,
                "__typename": "ArticleNode"
            },
            "status": null,
            "sampleTestCase": "{\"headers\":{\"FriendRequest\":[\"sender_id\",\"send_to_id\",\"request_date\"],\"RequestAccepted\":[\"requester_id\",\"accepter_id\",\"accept_date\"]},\"rows\":{\"FriendRequest\":[[1,2,\"2016/06/01\"],[1,3,\"2016/06/01\"],[1,4,\"2016/06/01\"],[2,3,\"2016/06/02\"],[3,4,\"2016/06/09\"]],\"RequestAccepted\":[[1,2,\"2016/06/03\"],[1,3,\"2016/06/08\"],[2,3,\"2016/06/08\"],[3,4,\"2016/06/09\"],[3,4,\"2016/06/10\"]]}}",
            "metaData": "{\"mysql\": [\"Create table If Not Exists FriendRequest (sender_id int, send_to_id int, request_date date)\", \"Create table If Not Exists RequestAccepted (requester_id int, accepter_id int, accept_date date)\"], \"mssql\": [\"Create table FriendRequest (sender_id int, send_to_id int, request_date date)\", \"Create table RequestAccepted (requester_id int, accepter_id int, accept_date date)\"], \"oraclesql\": [\"Create table FriendRequest (sender_id int, send_to_id int, request_date date)\", \"Create table RequestAccepted (requester_id int, accepter_id int, accept_date date)\", \"Alter SESSION set NLS_DATE_FORMAT = 'YYYY/MM/DD'\"], \"database\": true, \"name\": \"acceptance_rate\", \"pythondata\": [\"FriendRequest = pd.DataFrame([], columns=['sender_id', 'send_to_id', 'request_date']).astype({'sender_id':'Int64', 'send_to_id':'Int64', 'request_date':'datetime64[ns]'})\", \"RequestAccepted = pd.DataFrame([], columns=['requester_id', 'accepter_id', 'accept_date']).astype({'requester_id':'Int64', 'accepter_id':'Int64', 'accept_date':'datetime64[ns]'})\"], \"postgresql\": [\"Create table If Not Exists FriendRequest (sender_id int, send_to_id int, request_date date)\", \"Create table If Not Exists RequestAccepted (requester_id int, accepter_id int, accept_date date)\"], \"database_schema\": {\"FriendRequest\": {\"sender_id\": \"INT\", \"send_to_id\": \"INT\", \"request_date\": \"DATE\"}, \"RequestAccepted\": {\"requester_id\": \"INT\", \"accepter_id\": \"INT\", \"accept_date\": \"DATE\"}}}",
            "judgerAvailable": true,
            "judgeType": "large",
            "mysqlSchemas": [
                "Create table If Not Exists FriendRequest (sender_id int, send_to_id int, request_date date)",
                "Create table If Not Exists RequestAccepted (requester_id int, accepter_id int, accept_date date)",
                "Truncate table FriendRequest",
                "insert into FriendRequest (sender_id, send_to_id, request_date) values ('1', '2', '2016/06/01')",
                "insert into FriendRequest (sender_id, send_to_id, request_date) values ('1', '3', '2016/06/01')",
                "insert into FriendRequest (sender_id, send_to_id, request_date) values ('1', '4', '2016/06/01')",
                "insert into FriendRequest (sender_id, send_to_id, request_date) values ('2', '3', '2016/06/02')",
                "insert into FriendRequest (sender_id, send_to_id, request_date) values ('3', '4', '2016/06/09')",
                "Truncate table RequestAccepted",
                "insert into RequestAccepted (requester_id, accepter_id, accept_date) values ('1', '2', '2016/06/03')",
                "insert into RequestAccepted (requester_id, accepter_id, accept_date) values ('1', '3', '2016/06/08')",
                "insert into RequestAccepted (requester_id, accepter_id, accept_date) values ('2', '3', '2016/06/08')",
                "insert into RequestAccepted (requester_id, accepter_id, accept_date) values ('3', '4', '2016/06/09')",
                "insert into RequestAccepted (requester_id, accepter_id, accept_date) values ('3', '4', '2016/06/10')"
            ],
            "enableRunCode": true,
            "enableTestMode": false,
            "enableDebugger": false,
            "envInfo": "{\"mysql\": [\"MySQL\", \"<p><code>MySQL 8.0</code>.</p>\"], \"mssql\": [\"MS SQL Server\", \"<p><code>mssql server 2019</code>.</p>\"], \"oraclesql\": [\"Oracle\", \"<p><code>Oracle Sql 11.2</code>.</p>\"], \"pythondata\": [\"Pandas\", \"<p>Python 3.10 with Pandas 2.0.2 and NumPy 1.25.0</p>\"], \"postgresql\": [\"PostgreSQL\", \"<p>PostgreSQL 16</p>\"]}",
            "libraryUrl": null,
            "adminUrl": null,
            "challengeQuestion": null,
            "__typename": "QuestionNode"
        }
    }
}