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小墨
2025-01-09 20:29:41 +08:00
parent 04ecea043d
commit 48cdd06c2b
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leetcode-cn/originData/user-activity-for-the-past-30-days-i.json
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@@ -12,12 +12,12 @@
"translatedContent": "<p>表：<code>Activity</code></p>\n\n<pre>\n+---------------+---------+\n| Column Name | Type |\n+---------------+---------+\n| user_id | int |\n| session_id | int |\n| activity_date | date |\n| activity_type | enum |\n+---------------+---------+\n该表没有包含重复数据。\nactivity_type 列是 ENUM(category) 类型， 从 ('open_session'， 'end_session'， 'scroll_down'， 'send_message') 取值。\n该表记录社交媒体网站的用户活动。\n注意，每个会话只属于一个用户。\n</pre>\n\n<p>&nbsp;</p>\n\n<p>编写解决方案，统计截至&nbsp;<code>2019-07-27</code>（包含2019-07-27），近<strong>&nbsp;</strong><code>30</code> 天的每日活跃用户数（当天只要有一条活动记录，即为活跃用户）。</p>\n\n<p>以 <strong>任意顺序</strong> 返回结果表。</p>\n\n<p>结果示例如下。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre>\n<strong>输入：</strong>\nActivity table:\n+---------+------------+---------------+---------------+\n| user_id | session_id | activity_date | activity_type |\n+---------+------------+---------------+---------------+\n| 1 | 1 | 2019-07-20 | open_session |\n| 1 | 1 | 2019-07-20 | scroll_down |\n| 1 | 1 | 2019-07-20 | end_session |\n| 2 | 4 | 2019-07-20 | open_session |\n| 2 | 4 | 2019-07-21 | send_message |\n| 2 | 4 | 2019-07-21 | end_session |\n| 3 | 2 | 2019-07-21 | open_session |\n| 3 | 2 | 2019-07-21 | send_message |\n| 3 | 2 | 2019-07-21 | end_session |\n| 4 | 3 | 2019-06-25 | open_session |\n| 4 | 3 | 2019-06-25 | end_session |\n+---------+------------+---------------+---------------+\n<strong>输出：</strong>\n+------------+--------------+ \n| day | active_users |\n+------------+--------------+ \n| 2019-07-20 | 2 |\n| 2019-07-21 | 2 |\n+------------+--------------+ <strong>\n解释：</strong>注意非活跃用户的记录不需要展示。</pre>\n",
"isPaidOnly": false,
"difficulty": "Easy",
"likes": 119,
"likes": 137,
"dislikes": 0,
"isLiked": null,
"similarQuestions": "[]",
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@@ -59,7 +59,7 @@
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"stats": "{\"totalAccepted\": \"97.4K\", \"totalSubmission\": \"210.8K\", \"totalAcceptedRaw\": 97357, \"totalSubmissionRaw\": 210796, \"acRate\": \"46.2%\"}",
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"status": null,
@@ -83,7 +83,7 @@
"insert into Activity (user_id, session_id, activity_date, activity_type) values ('4', '3', '2019-06-25', 'end_session')"
],
"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>\"],\"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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