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小墨
2025-09-29 14:43:44 +08:00
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commit 13f2098086
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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": 137,
"likes": 154,
"dislikes": 0,
"isLiked": null,
"similarQuestions": "[]",
"contributors": [],
"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, \"cangjie\": false}",
"langToValidPlayground": "{\"cpp\": false, \"java\": false, \"python3\": false, \"python\": false, \"javascript\": false, \"typescript\": false, \"csharp\": false, \"c\": false, \"golang\": false, \"kotlin\": false, \"swift\": false, \"rust\": false, \"ruby\": false, \"php\": false, \"dart\": false, \"scala\": false, \"elixir\": false, \"erlang\": false, \"racket\": false, \"cangjie\": false, \"bash\": false, \"html\": false, \"pythonml\": false, \"react\": false, \"vanillajs\": false, \"mysql\": false, \"mssql\": false, \"postgresql\": false, \"oraclesql\": false, \"pythondata\": false}",
"topicTags": [
{
"name": "Database",
@@ -40,6 +40,12 @@
"code": "/* Write your T-SQL query statement below */",
"__typename": "CodeSnippetNode"
},
{
"lang": "PostgreSQL",
"langSlug": "postgresql",
"code": "-- Write your PostgreSQL query statement below",
"__typename": "CodeSnippetNode"
},
{
"lang": "Oracle",
"langSlug": "oraclesql",
@@ -51,15 +57,9 @@
"langSlug": "pythondata",
"code": "import pandas as pd\n\ndef user_activity(activity: pd.DataFrame) -> pd.DataFrame:\n ",
"__typename": "CodeSnippetNode"
},
{
"lang": "PostgreSQL",
"langSlug": "postgresql",
"code": "-- Write your PostgreSQL query statement below",
"__typename": "CodeSnippetNode"
}
],
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"stats": "{\"totalAccepted\": \"119.6K\", \"totalSubmission\": \"257.7K\", \"totalAcceptedRaw\": 119636, \"totalSubmissionRaw\": 257709, \"acRate\": \"46.4%\"}",
"hints": [],
"solution": null,
"status": null,