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存量题库数据更新
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@@ -7,17 +7,17 @@
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"boundTopicId": 564380,
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"title": "Find Followers Count",
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"titleSlug": "find-followers-count",
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"content": "<p>Table: <code>Followers</code></p>\n\n<pre>\n+-------------+------+\n| Column Name | Type |\n+-------------+------+\n| user_id | int |\n| follower_id | int |\n+-------------+------+\n(user_id, follower_id) is the primary key for this table.\nThis table contains the IDs of a user and a follower in a social media app where the follower follows the user.</pre>\n\n<p> </p>\n\n<p>Write an SQL query that will, for each user, return the number of followers.</p>\n\n<p>Return the result table ordered by <code>user_id</code>.</p>\n\n<p>The query result format is in the following example.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> \nFollowers table:\n+---------+-------------+\n| user_id | follower_id |\n+---------+-------------+\n| 0 | 1 |\n| 1 | 0 |\n| 2 | 0 |\n| 2 | 1 |\n+---------+-------------+\n<strong>Output:</strong> \n+---------+----------------+\n| user_id | followers_count|\n+---------+----------------+\n| 0 | 1 |\n| 1 | 1 |\n| 2 | 2 |\n+---------+----------------+\n<strong>Explanation:</strong> \nThe followers of 0 are {1}\nThe followers of 1 are {0}\nThe followers of 2 are {0,1}\n</pre>\n",
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"content": "<p>Table: <code>Followers</code></p>\n\n<pre>\n+-------------+------+\n| Column Name | Type |\n+-------------+------+\n| user_id | int |\n| follower_id | int |\n+-------------+------+\n(user_id, follower_id) is the primary key (combination of columns with unique values) for this table.\nThis table contains the IDs of a user and a follower in a social media app where the follower follows the user.</pre>\n\n<p> </p>\n\n<p>Write a solution that will, for each user, return the number of followers.</p>\n\n<p>Return the result table ordered by <code>user_id</code> in ascending order.</p>\n\n<p>The result format is in the following example.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> \nFollowers table:\n+---------+-------------+\n| user_id | follower_id |\n+---------+-------------+\n| 0 | 1 |\n| 1 | 0 |\n| 2 | 0 |\n| 2 | 1 |\n+---------+-------------+\n<strong>Output:</strong> \n+---------+----------------+\n| user_id | followers_count|\n+---------+----------------+\n| 0 | 1 |\n| 1 | 1 |\n| 2 | 2 |\n+---------+----------------+\n<strong>Explanation:</strong> \nThe followers of 0 are {1}\nThe followers of 1 are {0}\nThe followers of 2 are {0,1}\n</pre>\n",
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"translatedTitle": "求关注者的数量",
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"translatedContent": "<p>表： <code>Followers</code></p>\n\n<pre>\n+-------------+------+\n| Column Name | Type |\n+-------------+------+\n| user_id | int |\n| follower_id | int |\n+-------------+------+\n(user_id, follower_id) 是这个表的主键。\n该表包含一个关注关系中关注者和用户的编号，其中关注者关注用户。</pre>\n\n<p> </p>\n\n<p>写出 SQL 语句，对于每一个用户，返回该用户的关注者数量。</p>\n\n<p>按 <code>user_id</code> 的顺序返回结果表。</p>\n\n<p>查询结果的格式如下示例所示。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>\nFollowers 表：\n+---------+-------------+\n| user_id | follower_id |\n+---------+-------------+\n| 0 | 1 |\n| 1 | 0 |\n| 2 | 0 |\n| 2 | 1 |\n+---------+-------------+\n<strong>输出：</strong>\n+---------+----------------+\n| user_id | followers_count|\n+---------+----------------+\n| 0 | 1 |\n| 1 | 1 |\n| 2 | 2 |\n+---------+----------------+\n<strong>解释：</strong>\n0 的关注者有 {1}\n1 的关注者有 {0}\n2 的关注者有 {0,1}</pre>\n",
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"translatedContent": "<p>表： <code>Followers</code></p>\n\n<pre>\n+-------------+------+\n| Column Name | Type |\n+-------------+------+\n| user_id | int |\n| follower_id | int |\n+-------------+------+\n(user_id, follower_id) 是这个表的主键（具有唯一值的列的组合）。\n该表包含一个关注关系中关注者和用户的编号，其中关注者关注用户。</pre>\n\n<p> </p>\n\n<p>编写解决方案，对于每一个用户，返回该用户的关注者数量。</p>\n\n<p>按 <code>user_id</code> 的顺序返回结果表。</p>\n\n<p>查询结果的格式如下示例所示。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>\nFollowers 表：\n+---------+-------------+\n| user_id | follower_id |\n+---------+-------------+\n| 0 | 1 |\n| 1 | 0 |\n| 2 | 0 |\n| 2 | 1 |\n+---------+-------------+\n<strong>输出：</strong>\n+---------+----------------+\n| user_id | followers_count|\n+---------+----------------+\n| 0 | 1 |\n| 1 | 1 |\n| 2 | 2 |\n+---------+----------------+\n<strong>解释：</strong>\n0 的关注者有 {1}\n1 的关注者有 {0}\n2 的关注者有 {0,1}</pre>\n",
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"isPaidOnly": false,
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"difficulty": "Easy",
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"likes": 11,
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"likes": 48,
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"dislikes": 0,
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"isLiked": null,
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"similarQuestions": "[]",
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"contributors": [],
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"langToValidPlayground": "{\"cpp\": false, \"java\": false, \"python\": false, \"python3\": false, \"mysql\": false, \"mssql\": false, \"oraclesql\": false, \"c\": false, \"csharp\": false, \"javascript\": false, \"ruby\": false, \"bash\": false, \"swift\": false, \"golang\": false, \"scala\": false, \"html\": false, \"pythonml\": false, \"kotlin\": false, \"rust\": false, \"php\": false, \"typescript\": false, \"racket\": false, \"erlang\": false, \"elixir\": false}",
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"langToValidPlayground": "{\"cpp\": false, \"java\": false, \"python\": false, \"python3\": false, \"mysql\": false, \"mssql\": false, \"oraclesql\": false, \"c\": false, \"csharp\": false, \"javascript\": false, \"typescript\": false, \"bash\": false, \"php\": false, \"swift\": false, \"kotlin\": false, \"dart\": false, \"golang\": false, \"ruby\": false, \"scala\": false, \"html\": false, \"pythonml\": false, \"rust\": false, \"racket\": false, \"erlang\": false, \"elixir\": false, \"pythondata\": false, \"react\": false, \"vanillajs\": false, \"postgresql\": false}",
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"topicTags": [
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{
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"name": "Database",
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@@ -45,14 +45,26 @@
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"langSlug": "oraclesql",
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"code": "/* Write your PL/SQL query statement below */",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Pandas",
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"langSlug": "pythondata",
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"code": "import pandas as pd\n\ndef count_followers(followers: pd.DataFrame) -> pd.DataFrame:\n ",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "PostgreSQL",
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"langSlug": "postgresql",
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"code": "-- Write your PostgreSQL query statement below",
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"__typename": "CodeSnippetNode"
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}
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],
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"stats": "{\"totalAccepted\": \"5.4K\", \"totalSubmission\": \"8.6K\", \"totalAcceptedRaw\": 5414, \"totalSubmissionRaw\": 8588, \"acRate\": \"63.0%\"}",
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"stats": "{\"totalAccepted\": \"40.1K\", \"totalSubmission\": \"66.5K\", \"totalAcceptedRaw\": 40136, \"totalSubmissionRaw\": 66502, \"acRate\": \"60.4%\"}",
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"hints": [],
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"solution": null,
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"status": null,
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"sampleTestCase": "{\"headers\":{\"Followers\":[\"user_id\",\"follower_id\"]},\"rows\":{\"Followers\":[[\"0\",\"1\"],[\"1\",\"0\"],[\"2\",\"0\"],[\"2\",\"1\"]]}}",
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"metaData": "{\n \"mysql\": [\n \"Create table If Not Exists Followers(user_id int, follower_id int)\"\n ],\n \"mssql\": [\n \"Create table Followers(user_id int, follower_id int)\"\n ],\n \"oraclesql\": [\n \"Create table Followers(user_id int, follower_id int)\"\n ],\n \"database\": true\n}",
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"metaData": "{\"mysql\":[\"Create table If Not Exists Followers(user_id int, follower_id int)\"],\"mssql\":[\"Create table Followers(user_id int, follower_id int)\"],\"oraclesql\":[\"Create table Followers(user_id int, follower_id int)\"],\"database\":true,\"name\":\"count_followers\",\"pythondata\":[\"Followers = pd.DataFrame([], columns=['user_id', 'follower_id']).astype({'user_id':'Int64', 'follower_id':'Int64'})\"],\"postgresql\":[\"\\nCreate table If Not Exists Followers(user_id int, follower_id int)\"],\"database_schema\":{\"Followers\":{\"user_id\":\"INT\",\"follower_id\":\"INT\"}}}",
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"judgerAvailable": true,
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"judgeType": "large",
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"mysqlSchemas": [
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@@ -64,7 +76,7 @@
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"insert into Followers (user_id, follower_id) values ('2', '1')"
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],
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"enableRunCode": true,
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"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>\"]}",
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"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>\"],\"pythondata\":[\"Pandas\",\"<p>Python 3.10 with Pandas 2.0.2 and NumPy 1.25.0<\\/p>\"],\"postgresql\":[\"PostgreSQL\",\"<p>PostgreSQL 16<\\/p>\"]}",
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"book": null,
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"isSubscribed": false,
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"isDailyQuestion": false,
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