leetcode-problemset/leetcode-cn/originData/trips-and-users.json

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    "data": {
        "question": {
            "questionId": "262",
            "questionFrontendId": "262",
            "categoryTitle": "Database",
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            "title": "Trips and Users",
            "titleSlug": "trips-and-users",
            "content": "<p>Table: <code>Trips</code></p>\n\n<pre>\n+-------------+----------+\n| Column Name | Type     |\n+-------------+----------+\n| id          | int      |\n| client_id   | int      |\n| driver_id   | int      |\n| city_id     | int      |\n| status      | enum     |\n| request_at  | date     |     \n+-------------+----------+\nid is the primary key (column with unique values) for this table.\nThe table holds all taxi trips. Each trip has a unique id, while client_id and driver_id are foreign keys to the users_id at the Users table.\nStatus is an ENUM (category) type of (&#39;completed&#39;, &#39;cancelled_by_driver&#39;, &#39;cancelled_by_client&#39;).\n</pre>\n\n<p>&nbsp;</p>\n\n<p>Table: <code>Users</code></p>\n\n<pre>\n+-------------+----------+\n| Column Name | Type     |\n+-------------+----------+\n| users_id    | int      |\n| banned      | enum     |\n| role        | enum     |\n+-------------+----------+\nusers_id is the primary key (column with unique values) for this table.\nThe table holds all users. Each user has a unique users_id, and role is an ENUM type of (&#39;client&#39;, &#39;driver&#39;, &#39;partner&#39;).\nbanned is an ENUM (category) type of (&#39;Yes&#39;, &#39;No&#39;).\n</pre>\n\n<p>&nbsp;</p>\n\n<p>The <strong>cancellation rate</strong> is computed by dividing the number of canceled (by client or driver) requests with unbanned users by the total number of requests with unbanned users on that day.</p>\n\n<p>Write a solution to find the <strong>cancellation rate</strong> of requests with unbanned users (<strong>both client and driver must not be banned</strong>) each day between <code>&quot;2013-10-01&quot;</code> and <code>&quot;2013-10-03&quot;</code>. Round <code>Cancellation Rate</code> to <strong>two decimal</strong> points.</p>\n\n<p>Return the result table in <strong>any order</strong>.</p>\n\n<p>The&nbsp;result format is in the following example.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> \nTrips table:\n+----+-----------+-----------+---------+---------------------+------------+\n| id | client_id | driver_id | city_id | status              | request_at |\n+----+-----------+-----------+---------+---------------------+------------+\n| 1  | 1         | 10        | 1       | completed           | 2013-10-01 |\n| 2  | 2         | 11        | 1       | cancelled_by_driver | 2013-10-01 |\n| 3  | 3         | 12        | 6       | completed           | 2013-10-01 |\n| 4  | 4         | 13        | 6       | cancelled_by_client | 2013-10-01 |\n| 5  | 1         | 10        | 1       | completed           | 2013-10-02 |\n| 6  | 2         | 11        | 6       | completed           | 2013-10-02 |\n| 7  | 3         | 12        | 6       | completed           | 2013-10-02 |\n| 8  | 2         | 12        | 12      | completed           | 2013-10-03 |\n| 9  | 3         | 10        | 12      | completed           | 2013-10-03 |\n| 10 | 4         | 13        | 12      | cancelled_by_driver | 2013-10-03 |\n+----+-----------+-----------+---------+---------------------+------------+\nUsers table:\n+----------+--------+--------+\n| users_id | banned | role   |\n+----------+--------+--------+\n| 1        | No     | client |\n| 2        | Yes    | client |\n| 3        | No     | client |\n| 4        | No     | client |\n| 10       | No     | driver |\n| 11       | No     | driver |\n| 12       | No     | driver |\n| 13       | No     | driver |\n+----------+--------+--------+\n<strong>Output:</strong> \n+------------+-------------------+\n| Day        | Cancellation Rate |\n+------------+-------------------+\n| 2013-10-01 | 0.33              |\n| 2013-10-02 | 0.00              |\n| 2013-10-03 | 0.50              |\n+------------+-------------------+\n<strong>Explanation:</strong> \nOn 2013-10-01:\n  - There were 4 requests in total, 2 of which were canceled.\n  - However, the request with Id=2 was made by a banned client (User_Id=2), so it is ignored in the calculation.\n  - Hence there are 3 unbanned requests in total, 1 of
            "translatedTitle": "行程和用户",
            "translatedContent": "表：<code>Trips</code>\n<div class=\"original__bRMd\">\n<div>\n<pre>\n+-------------+----------+\n| Column Name | Type     |\n+-------------+----------+\n| id          | int      |\n| client_id   | int      |\n| driver_id   | int      |\n| city_id     | int      |\n| status      | enum     |\n| request_at  | date     |     \n+-------------+----------+\nid 是这张表的主键（具有唯一值的列）。\n这张表中存所有出租车的行程信息。每段行程有唯一 id ，其中 client_id 和 driver_id 是 Users 表中 users_id 的外键。\nstatus 是一个表示行程状态的枚举类型，枚举成员为(‘completed’, ‘cancelled_by_driver’, ‘cancelled_by_client’) 。\n</pre>\n\n<p>&nbsp;</p>\n\n<div class=\"original__bRMd\">\n<div>\n<p>表：<code>Users</code></p>\n</div>\n</div>\n\n<pre>\n+-------------+----------+\n| Column Name | Type     |\n+-------------+----------+\n| users_id    | int      |\n| banned      | enum     |\n| role        | enum     |\n+-------------+----------+\nusers_id 是这张表的主键（具有唯一值的列）。\n这张表中存所有用户，每个用户都有一个唯一的 users_id ，role 是一个表示用户身份的枚举类型，枚举成员为 (‘client’, ‘driver’, ‘partner’) 。\nbanned 是一个表示用户是否被禁止的枚举类型，枚举成员为 (‘Yes’, ‘No’) 。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>取消率</strong> 的计算方式如下：(被司机或乘客取消的非禁止用户生成的订单数量) / (非禁止用户生成的订单总数)。</p>\n\n<p>编写解决方案找出&nbsp;<code>\"2013-10-01\"</code><strong>&nbsp;</strong>至&nbsp;<code>\"2013-10-03\"</code><strong>&nbsp;</strong>期间非禁止用户（<strong>乘客和司机都必须未被禁止</strong>）的取消率。非禁止用户即 banned 为 No 的用户，禁止用户即 banned 为 Yes 的用户。其中取消率 <code>Cancellation Rate</code> 需要四舍五入保留 <strong>两位小数</strong> 。</p>\n\n<p>返回结果表中的数据 <strong>无顺序要求</strong> 。</p>\n\n<p>结果格式如下例所示。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong> \nTrips 表：\n+----+-----------+-----------+---------+---------------------+------------+\n| id | client_id | driver_id | city_id | status              | request_at |\n+----+-----------+-----------+---------+---------------------+------------+\n| 1  | 1         | 10        | 1       | completed           | 2013-10-01 |\n| 2  | 2         | 11        | 1       | cancelled_by_driver | 2013-10-01 |\n| 3  | 3         | 12        | 6       | completed           | 2013-10-01 |\n| 4  | 4         | 13        | 6       | cancelled_by_client | 2013-10-01 |\n| 5  | 1         | 10        | 1       | completed           | 2013-10-02 |\n| 6  | 2         | 11        | 6       | completed           | 2013-10-02 |\n| 7  | 3         | 12        | 6       | completed           | 2013-10-02 |\n| 8  | 2         | 12        | 12      | completed           | 2013-10-03 |\n| 9  | 3         | 10        | 12      | completed           | 2013-10-03 |\n| 10 | 4         | 13        | 12      | cancelled_by_driver | 2013-10-03 |\n+----+-----------+-----------+---------+---------------------+------------+\nUsers 表：\n+----------+--------+--------+\n| users_id | banned | role   |\n+----------+--------+--------+\n| 1        | No     | client |\n| 2        | Yes    | client |\n| 3        | No     | client |\n| 4        | No     | client |\n| 10       | No     | driver |\n| 11       | No     | driver |\n| 12       | No     | driver |\n| 13       | No     | driver |\n+----------+--------+--------+\n<strong>输出：</strong>\n+------------+-------------------+\n| Day        | Cancellation Rate |\n+------------+-------------------+\n| 2013-10-01 | 0.33              |\n| 2013-10-02 | 0.00              |\n| 2013-10-03 | 0.50              |\n+------------+-------------------+\n<strong>解释：</strong>\n2013-10-01：\n  - 共有 4 条请求<EFBFBD>
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            "sampleTestCase": "{\"headers\": {\"Trips\": [\"id\", \"client_id\", \"driver_id\", \"city_id\", \"status\", \"request_at\"], \"Users\": [\"users_id\", \"banned\", \"role\"]}, \"rows\": {\"Trips\": [[\"1\", \"1\", \"10\", \"1\", \"completed\", \"2013-10-01\"], [\"2\", \"2\", \"11\", \"1\", \"cancelled_by_driver\", \"2013-10-01\"], [\"3\", \"3\", \"12\", \"6\", \"completed\", \"2013-10-01\"], [\"4\", \"4\", \"13\", \"6\", \"cancelled_by_client\", \"2013-10-01\"], [\"5\", \"1\", \"10\", \"1\", \"completed\", \"2013-10-02\"], [\"6\", \"2\", \"11\", \"6\", \"completed\", \"2013-10-02\"], [\"7\", \"3\", \"12\", \"6\", \"completed\", \"2013-10-02\"], [\"8\", \"2\", \"12\", \"12\", \"completed\", \"2013-10-03\"], [\"9\", \"3\", \"10\", \"12\", \"completed\", \"2013-10-03\"], [\"10\", \"4\", \"13\", \"12\", \"cancelled_by_driver\", \"2013-10-03\"]], \"Users\": [[\"1\", \"No\", \"client\"], [\"2\", \"Yes\", \"client\"], [\"3\", \"No\", \"client\"], [\"4\", \"No\", \"client\"], [\"10\", \"No\", \"driver\"], [\"11\", \"No\", \"driver\"], [\"12\", \"No\", \"driver\"], [\"13\", \"No\", \"driver\"]]}}",
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                "Create table If Not Exists Trips (id int, client_id int, driver_id int, city_id int, status ENUM('completed', 'cancelled_by_driver', 'cancelled_by_client'), request_at varchar(50))",
                "Create table If Not Exists Users (users_id int, banned varchar(50), role ENUM('client', 'driver', 'partner'))",
                "Truncate table Trips",
                "insert into Trips (id, client_id, driver_id, city_id, status, request_at) values ('1', '1', '10', '1', 'completed', '2013-10-01')",
                "insert into Trips (id, client_id, driver_id, city_id, status, request_at) values ('2', '2', '11', '1', 'cancelled_by_driver', '2013-10-01')",
                "insert into Trips (id, client_id, driver_id, city_id, status, request_at) values ('3', '3', '12', '6', 'completed', '2013-10-01')",
                "insert into Trips (id, client_id, driver_id, city_id, status, request_at) values ('4', '4', '13', '6', 'cancelled_by_client', '2013-10-01')",
                "insert into Trips (id, client_id, driver_id, city_id, status, request_at) values ('5', '1', '10', '1', 'completed', '2013-10-02')",
                "insert into Trips (id, client_id, driver_id, city_id, status, request_at) values ('6', '2', '11', '6', 'completed', '2013-10-02')",
                "insert into Trips (id, client_id, driver_id, city_id, status, request_at) values ('7', '3', '12', '6', 'completed', '2013-10-02')",
                "insert into Trips (id, client_id, driver_id, city_id, status, request_at) values ('8', '2', '12', '12', 'completed', '2013-10-03')",
                "insert into Trips (id, client_id, driver_id, city_id, status, request_at) values ('9', '3', '10', '12', 'completed', '2013-10-03')",
                "insert into Trips (id, client_id, driver_id, city_id, status, request_at) values ('10', '4', '13', '12', 'cancelled_by_driver', '2013-10-03')",
                "Truncate table Users",
                "insert into Users (users_id, banned, role) values ('1', 'No', 'client')",
                "insert into Users (users_id, banned, role) values ('2', 'Yes', 'client')",
                "insert into Users (users_id, banned, role) values ('3', 'No', 'client')",
                "insert into Users (users_id, banned, role) values ('4', 'No', 'client')",
                "insert into Users (users_id, banned, role) values ('10', 'No', 'driver')",
                "insert into Users (users_id, banned, role) values ('11', 'No', 'driver')",
                "insert into Users (users_id, banned, role) values ('12', 'No', 'driver')",
                "insert into Users (users_id, banned, role) values ('13', 'No', 'driver')"
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