{
    "data": {
        "question": {
            "questionId": "3281",
            "questionFrontendId": "2984",
            "boundTopicId": null,
            "title": "Find Peak Calling Hours for Each City",
            "titleSlug": "find-peak-calling-hours-for-each-city",
            "content": null,
            "translatedTitle": null,
            "translatedContent": null,
            "isPaidOnly": true,
            "difficulty": "Medium",
            "likes": 2,
            "dislikes": 2,
            "isLiked": null,
            "similarQuestions": "[]",
            "exampleTestcases": "{\"headers\":{\"Calls\":[\"caller_id\",\"recipient_id\",\"call_time\",\"city\"]},\"rows\":{\"Calls\":[[8,4,\"2021-08-24 22:46:07\",\"Houston\"],[4,8,\"2021-08-24 22:57:13\",\"Houston\"],[5,1,\"2021-08-11 21:28:44\",\"Houston\"],[8,3,\"2021-08-17 22:04:15\",\"Houston\"],[11,3,\"2021-08-17 13:07:00\",\"New York\"],[8,11,\"2021-08-17 14:22:22\",\"New York\"]]}}",
            "categoryTitle": "Database",
            "contributors": [],
            "topicTags": [
                {
                    "name": "Database",
                    "slug": "database",
                    "translatedName": null,
                    "__typename": "TopicTagNode"
                }
            ],
            "companyTagStats": null,
            "codeSnippets": null,
            "stats": "{\"totalAccepted\": \"205\", \"totalSubmission\": \"308\", \"totalAcceptedRaw\": 205, \"totalSubmissionRaw\": 308, \"acRate\": \"66.6%\"}",
            "hints": [],
            "solution": null,
            "status": null,
            "sampleTestCase": "{\"headers\":{\"Calls\":[\"caller_id\",\"recipient_id\",\"call_time\",\"city\"]},\"rows\":{\"Calls\":[[8,4,\"2021-08-24 22:46:07\",\"Houston\"],[4,8,\"2021-08-24 22:57:13\",\"Houston\"],[5,1,\"2021-08-11 21:28:44\",\"Houston\"],[8,3,\"2021-08-17 22:04:15\",\"Houston\"],[11,3,\"2021-08-17 13:07:00\",\"New York\"],[8,11,\"2021-08-17 14:22:22\",\"New York\"]]}}",
            "metaData": "{\"mysql\": [\"Create table If Not Exists Calls (caller_id int, recipient_id int, call_time datetime, city varchar(40))\"], \"mssql\": [\"Create table Calls (caller_id int, recipient_id int, call_time datetime, city varchar(40))\"], \"oraclesql\": [\"Create table Calls (caller_id int, recipient_id int, call_time date, city varchar(40))\", \"ALTER SESSION SET nls_date_format='YYYY-MM-DD HH24:MI:SS'\"], \"database\": true, \"languages\": [\"mysql\", \"mssql\", \"oraclesql\"], \"database_schema\": {\"Calls\": {\"caller_id\": \"INT\", \"recipient_id\": \"INT\", \"call_time\": \"DATETIME\", \"city\": \"VARCHAR(40)\"}}}",
            "judgerAvailable": true,
            "judgeType": "large",
            "mysqlSchemas": [
                "Create table If Not Exists Calls (caller_id int, recipient_id int, call_time datetime, city varchar(40))",
                "Truncate table Calls",
                "insert into Calls (caller_id, recipient_id, call_time, city) values ('8', '4', '2021-08-24 22:46:07', 'Houston')",
                "insert into Calls (caller_id, recipient_id, call_time, city) values ('4', '8', '2021-08-24 22:57:13', 'Houston')",
                "insert into Calls (caller_id, recipient_id, call_time, city) values ('5', '1', '2021-08-11 21:28:44', 'Houston')",
                "insert into Calls (caller_id, recipient_id, call_time, city) values ('8', '3', '2021-08-17 22:04:15', 'Houston')",
                "insert into Calls (caller_id, recipient_id, call_time, city) values ('11', '3', '2021-08-17 13:07:00', 'New York')",
                "insert into Calls (caller_id, recipient_id, call_time, city) values ('8', '11', '2021-08-17 14:22:22', 'New York')"
            ],
            "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>\"]}",
            "libraryUrl": null,
            "adminUrl": null,
            "challengeQuestion": null,
            "__typename": "QuestionNode"
        }
    }
}