feat: add weekly contest 390

solution/3000-3099/3086.Minimum Moves to Pick K Ones/README.md

@@ -10,14 +10,14 @@
 
 <p>给你一个下标从 <strong>0</strong> 开始的二进制数组 <code>nums</code>，其长度为 <code>n</code> ；另给你一个 <strong>正整数 </strong><code>k</code> 以及一个 <strong>非负整数 </strong><code>maxChanges</code> 。</p>
 
-<p>灵茶山艾府在玩一个游戏，游戏的目标是让灵茶山艾府使用 <strong>最少 </strong>数量的 <strong>行动 </strong>次数从 <code>nums</code> 中拾起 <code>k</code> 个 1 。游戏开始时，灵茶山艾府可以选择数组 <code>[0, n - 1]</code> 范围内的任何索引<code>index</code> 站立。如果 <code>nums[index] == 1</code> ，灵茶山艾府就会拾起一个 1 ，并且 <code>nums[index]</code> 变成<code>0</code>（这<strong> 不算 </strong>作一次行动）。之后，灵茶山艾府可以执行 <strong>任意数量</strong> 的 <strong>行动</strong>（<strong>包括</strong><strong>零次</strong>），在每次行动中灵茶山艾府必须 <strong>恰好 </strong>执行以下动作之一：</p>
+<p>Alice 在玩一个游戏，游戏的目标是让&nbsp;Alice 使用 <strong>最少 </strong>数量的 <strong>行动 </strong>次数从 <code>nums</code> 中拾起 <code>k</code> 个 1 。游戏开始时，Alice 可以选择数组 <code>[0, n - 1]</code> 范围内的任何索引&nbsp;<code>aliceIndex</code> 站立。如果 <code>nums[aliceIndex] == 1</code> ，Alice 会拾起一个 1 ，并且 <code>nums[aliceIndex]</code> 变成<code>0</code>（这<strong> 不算 </strong>作一次行动）。之后，Alice 可以执行 <strong>任意数量</strong> 的 <strong>行动</strong>（<strong>包括</strong><strong>零次</strong>），在每次行动中&nbsp;Alice 必须 <strong>恰好 </strong>执行以下动作之一：</p>
 
 <ul>
-	<li>选择任意一个下标 <code>j != index</code> 且满足 <code>nums[j] == 0</code> ，然后将 <code>nums[j]</code> 设置为 <code>1</code> 。这个动作最多可以执行 <code>maxChanges</code> 次。</li>
-	<li>选择任意两个相邻的下标 <code>x</code> 和 <code>y</code>（<code>|x - y| == 1</code>）且满足 <code>nums[x] == 1</code>, <code>nums[y] == 0</code> ，然后交换它们的值（将 <code>nums[y] = 1</code> 和 <code>nums[x] = 0</code>）。如果 <code>y == index</code>，在这次行动后灵茶山艾府拾起一个 1 ，并且 <code>nums[y]</code> 变成 <code>0</code> 。</li>
+	<li>选择任意一个下标 <code>j != aliceIndex</code> 且满足 <code>nums[j] == 0</code> ，然后将 <code>nums[j]</code> 设置为 <code>1</code> 。这个动作最多可以执行 <code>maxChanges</code> 次。</li>
+	<li>选择任意两个相邻的下标 <code>x</code> 和 <code>y</code>（<code>|x - y| == 1</code>）且满足 <code>nums[x] == 1</code>, <code>nums[y] == 0</code> ，然后交换它们的值（将 <code>nums[y] = 1</code> 和 <code>nums[x] = 0</code>）。如果 <code>y == aliceIndex</code>，在这次行动后&nbsp;Alice 拾起一个 1 ，并且 <code>nums[y]</code> 变成 <code>0</code> 。</li>
 </ul>
 
-<p>返回灵茶山艾府拾起 <strong>恰好 </strong><code>k</code> 个 1 所需的 <strong>最少 </strong>行动次数。</p>
+<p>返回&nbsp;Alice 拾起 <strong>恰好 </strong><code>k</code> 个 1 所需的 <strong>最少 </strong>行动次数。</p>
 
 <p>&nbsp;</p>
 
@@ -28,16 +28,16 @@
 
 <p><strong>输出：</strong><span class="example-io" style="font-family: Menlo,sans-serif; font-size: 0.85rem;">3</span></p>
 
-<p><strong>解释：</strong>如果游戏开始时灵茶山艾府在 <code>index == 1</code> 的位置上，按照以下步骤执行每个动作，他可以利用 <code>3</code> 次行动拾取 <code>3</code> 个 1 ：</p>
+<p><strong>解释：</strong>如果游戏开始时&nbsp;Alice 在 <code>aliceIndex == 1</code> 的位置上，按照以下步骤执行每个动作，他可以利用 <code>3</code> 次行动拾取 <code>3</code> 个 1 ：</p>
 
 <ul>
-	<li>游戏开始时灵茶山艾府拾取了一个 1 ，<code>nums[1]</code> 变成了 <code>0</code>。此时 <code>nums</code> 变为 <code>[1,<strong><u>0</u></strong>,0,0,0,1,1,0,0,1]</code> 。</li>
+	<li>游戏开始时&nbsp;Alice 拾取了一个 1 ，<code>nums[1]</code> 变成了 <code>0</code>。此时 <code>nums</code> 变为 <code>[1,<strong><u>1</u></strong>,1,0,0,1,1,0,0,1]</code> 。</li>
 	<li>选择 <code>j == 2</code> 并执行第一种类型的动作。<code>nums</code> 变为 <code>[1,<strong><u>0</u></strong>,1,0,0,1,1,0,0,1]</code></li>
-	<li>选择 <code>x == 2</code> 和 <code>y == 1</code> ，并执行第二种类型的动作。<code>nums</code> 变为 <code>[1,<strong><u>1</u></strong>,0,0,0,1,1,0,0,1]</code> 。由于 <code>y == index</code>，灵茶山艾府拾取了一个 1 ，<code>nums</code> 变为&nbsp; <code>[1,<strong><u>0</u></strong>,0,0,0,1,1,0,0,1]</code> 。</li>
-	<li>选择 <code>x == 0</code> 和 <code>y == 1</code> ，并执行第二种类型的动作。<code>nums</code> 变为 <code>[0,<strong><u>1</u></strong>,0,0,0,1,1,0,0,1]</code> 。由于 <code>y == index</code>，灵茶山艾府拾取了一个 1 ，<code>nums</code> 变为&nbsp; <code>[0,<strong><u>0</u></strong>,0,0,0,1,1,0,0,1]</code> 。</li>
+	<li>选择 <code>x == 2</code> 和 <code>y == 1</code> ，并执行第二种类型的动作。<code>nums</code> 变为 <code>[1,<strong><u>1</u></strong>,0,0,0,1,1,0,0,1]</code> 。由于 <code>y == aliceIndex</code>，Alice 拾取了一个 1 ，<code>nums</code> 变为&nbsp; <code>[1,<strong><u>0</u></strong>,0,0,0,1,1,0,0,1]</code> 。</li>
+	<li>选择 <code>x == 0</code> 和 <code>y == 1</code> ，并执行第二种类型的动作。<code>nums</code> 变为 <code>[0,<strong><u>1</u></strong>,0,0,0,1,1,0,0,1]</code> 。由于 <code>y == aliceIndex</code>，Alice 拾取了一个 1 ，<code>nums</code> 变为&nbsp; <code>[0,<strong><u>0</u></strong>,0,0,0,1,1,0,0,1]</code> 。</li>
 </ul>
 
-<p>请注意，灵茶山艾府也可能执行其他的 <code>3</code> 次行动序列达成拾取 <code>3</code> 个 1 。</p>
+<p>请注意，Alice 也可能执行其他的 <code>3</code> 次行动序列达成拾取 <code>3</code> 个 1 。</p>
 </div>
 
 <p><strong class="example">示例 2：</strong></p>
@@ -47,13 +47,13 @@
 
 <p><strong>输出：</strong><span class="example-io" style="font-family: Menlo,sans-serif; font-size: 0.85rem;">4</span></p>
 
-<p><strong>解释：</strong>如果游戏开始时灵茶山艾府在 <code>index == 0</code> 的位置上，按照以下步骤执行每个动作，他可以利用 <code>4</code> 次行动拾取 <code>2</code> 个 1 ：</p>
+<p><strong>解释：</strong>如果游戏开始时&nbsp;Alice 在 <code>aliceIndex == 0</code> 的位置上，按照以下步骤执行每个动作，他可以利用 <code>4</code> 次行动拾取 <code>2</code> 个 1 ：</p>
 
 <ul>
 	<li>选择 <code>j == 1</code> 并执行第一种类型的动作。<code>nums</code> 变为 <code>[<strong><u>0</u></strong>,1,0,0]</code> 。</li>
-	<li>选择 <code>x == 1</code> 和 <code>y == 0</code> ，并执行第二种类型的动作。<code>nums</code> 变为 <code>[<strong><u>1</u></strong>,0,0,0]</code> 。由于 <code>y == index</code>，灵茶山艾府拾起了一个 1 ，<code>nums</code> 变为 <code>[<strong><u>0</u></strong>,0,0,0]</code> 。</li>
+	<li>选择 <code>x == 1</code> 和 <code>y == 0</code> ，并执行第二种类型的动作。<code>nums</code> 变为 <code>[<strong><u>1</u></strong>,0,0,0]</code> 。由于 <code>y == aliceIndex</code>，Alice 拾起了一个 1 ，<code>nums</code> 变为 <code>[<strong><u>0</u></strong>,0,0,0]</code> 。</li>
 	<li>再次选择 <code>j == 1</code> 并执行第一种类型的动作。<code>nums</code> 变为 <code>[<strong><u>0</u></strong>,1,0,0]</code> 。</li>
-	<li>再次选择 <code>x == 1</code> 和 <code>y == 0</code> ，并执行第二种类型的动作。<code>nums</code> 变为 <code>[<strong><u>1</u></strong>,0,0,0]</code> 。由于<code>y == index</code>，灵茶山艾府拾起了一个 1 ，<code>nums</code> 变为 <code>[<strong><u>0</u></strong>,0,0,0]</code> 。</li>
+	<li>再次选择 <code>x == 1</code> 和 <code>y == 0</code> ，并执行第二种类型的动作。<code>nums</code> 变为 <code>[<strong><u>1</u></strong>,0,0,0]</code> 。由于<code>y == aliceIndex</code>，Alice 拾起了一个 1 ，<code>nums</code> 变为 <code>[<strong><u>0</u></strong>,0,0,0]</code> 。</li>
 </ul>
 </div>
 

solution/3000-3099/3086.Minimum Moves to Pick K Ones/README_EN.md

@@ -28,7 +28,7 @@
 <p><strong>Explanation:</strong> Alice can pick up <code>3</code> ones in <code>3</code> moves, if Alice performs the following actions in each move when standing at <code>aliceIndex == 1</code>:</p>
 
 <ul>
-	<li>&nbsp;At the start of the game Alice picks up the one and <code>nums[1]</code> becomes <code>0</code>. <code>nums</code> becomes <code>[1,<strong><u>0</u></strong>,1,0,0,1,1,0,0,1]</code>.</li>
+	<li>&nbsp;At the start of the game Alice picks up the one and <code>nums[1]</code> becomes <code>0</code>. <code>nums</code> becomes <code>[1,<strong><u>1</u></strong>,1,0,0,1,1,0,0,1]</code>.</li>
 	<li>Select <code>j == 2</code> and perform an action of the first type. <code>nums</code> becomes <code>[1,<strong><u>0</u></strong>,1,0,0,1,1,0,0,1]</code></li>
 	<li>Select <code>x == 2</code> and <code>y == 1</code>, and perform an action of the second type. <code>nums</code> becomes <code>[1,<strong><u>1</u></strong>,0,0,0,1,1,0,0,1]</code>. As <code>y == aliceIndex</code>, Alice picks up the one and <code>nums</code> becomes&nbsp;<code>[1,<strong><u>0</u></strong>,0,0,0,1,1,0,0,1]</code>.</li>
 	<li>Select <code>x == 0</code> and <code>y == 1</code>, and perform an action of the second type. <code>nums</code> becomes <code>[0,<strong><u>1</u></strong>,0,0,0,1,1,0,0,1]</code>. As <code>y == aliceIndex</code>, Alice picks up the one and <code>nums</code> becomes&nbsp;<code>[0,<strong><u>0</u></strong>,0,0,0,1,1,0,0,1]</code>.</li>

solution/3000-3099/3089.Find Bursty Behavior/README.md

@@ -0,0 +1,90 @@
+# [3089. Find Bursty Behavior](https://leetcode.cn/problems/find-bursty-behavior)
+
+[English Version](/solution/3000-3099/3089.Find%20Bursty%20Behavior/README_EN.md)
+
+<!-- tags: -->
+
+## 题目描述
+
+<!-- 这里写题目描述 -->
+
+<p>Table: <code>Posts</code></p>
+
+<pre>
++-------------+---------+
+| Column Name | Type    |
++-------------+---------+
+| post_id     | int     |
+| user_id     | int     |
+| post_date   | date    |
++-------------+---------+
+post_id is the primary key (column with unique values) for this table.
+Each row of this table contains post_id, user_id, and post_date.
+</pre>
+
+<p>Write a solution to find users who demonstrate <strong>bursty behavior</strong> in their posting patterns during February <code>2024</code>. <strong>Bursty behavior</strong> is defined as <strong>any</strong> period of <strong>7</strong> <strong>consecutive</strong> days where a user&#39;s posting frequency is <strong>at least twice</strong> to their <strong>average</strong> weekly posting frequency for February <code>2024</code>.</p>
+
+<p><strong>Note:</strong> Only include the dates from February <code>1</code> to February <code>28</code> in your analysis, which means you should count February as having exactly <code>4</code> weeks.</p>
+
+<p>Return <em>the result table orderd by </em><code>user_id</code><em> in </em><strong>ascending</strong><em> order.</em></p>
+
+<p>The result format is in the following example.</p>
+
+<p>&nbsp;</p>
+<p><strong class="example">Example:</strong></p>
+
+<div class="example-block">
+<p><strong>Input:</strong></p>
+
+<p>Posts table:</p>
+
+<pre class="example-io">
++---------+---------+------------+
+| post_id | user_id | post_date  |
++---------+---------+------------+
+| 1       | 1       | 2024-02-27 |
+| 2       | 5       | 2024-02-06 |
+| 3       | 3       | 2024-02-25 |
+| 4       | 3       | 2024-02-14 |
+| 5       | 3       | 2024-02-06 |
+| 6       | 2       | 2024-02-25 |
++---------+---------+------------+
+</pre>
+
+<p><strong>Output:</strong></p>
+
+<pre class="example-io">
++---------+----------------+------------------+
+| user_id | max_7day_posts | avg_weekly_posts |
++---------+----------------+------------------+
+| 1       | 1              | 0.2500           |
+| 2       | 1              | 0.2500           |
+| 5       | 1              | 0.2500           |
++---------+----------------+------------------+
+</pre>
+
+<p><strong>Explanation:</strong></p>
+
+<ul>
+	<li><strong>User 1:</strong> Made only 1 post in February, resulting in an average of 0.25 posts per week and a max of 1 post in any 7-day period.</li>
+	<li><strong>User 2:</strong> Also made just 1 post, with the same average and max 7-day posting frequency as User 1.</li>
+	<li><strong>User 5:</strong> Like Users 1 and 2, User 5 made only 1 post throughout February, leading to the same average and max 7-day posting metrics.</li>
+	<li><strong>User 3:</strong> Although User 3 made more posts than the others (3 posts), they did not reach twice the average weekly posts in their consecutive 7-day window, so they are not listed in the output.</li>
+</ul>
+
+<p><b>Note:</b> Output table is ordered by user_id in ascending order.</p>
+</div>
+
+## 解法
+
+### 方法一
+
+<!-- tabs:start -->
+
+```sql
+
+```
+
+<!-- tabs:end -->
+
+<!-- end -->

solution/3000-3099/3089.Find Bursty Behavior/README_EN.md

@@ -0,0 +1,88 @@
+# [3089. Find Bursty Behavior](https://leetcode.com/problems/find-bursty-behavior)
+
+[中文文档](/solution/3000-3099/3089.Find%20Bursty%20Behavior/README.md)
+
+<!-- tags: -->
+
+## Description
+
+<p>Table: <code>Posts</code></p>
+
+<pre>
++-------------+---------+
+| Column Name | Type    |
++-------------+---------+
+| post_id     | int     |
+| user_id     | int     |
+| post_date   | date    |
++-------------+---------+
+post_id is the primary key (column with unique values) for this table.
+Each row of this table contains post_id, user_id, and post_date.
+</pre>
+
+<p>Write a solution to find users who demonstrate <strong>bursty behavior</strong> in their posting patterns during February <code>2024</code>. <strong>Bursty behavior</strong> is defined as <strong>any</strong> period of <strong>7</strong> <strong>consecutive</strong> days where a user&#39;s posting frequency is <strong>at least twice</strong> to their <strong>average</strong> weekly posting frequency for February <code>2024</code>.</p>
+
+<p><strong>Note:</strong> Only include the dates from February <code>1</code> to February <code>28</code> in your analysis, which means you should count February as having exactly <code>4</code> weeks.</p>
+
+<p>Return <em>the result table orderd by </em><code>user_id</code><em> in </em><strong>ascending</strong><em> order.</em></p>
+
+<p>The result format is in the following example.</p>
+
+<p>&nbsp;</p>
+<p><strong class="example">Example:</strong></p>
+
+<div class="example-block">
+<p><strong>Input:</strong></p>
+
+<p>Posts table:</p>
+
+<pre class="example-io">
++---------+---------+------------+
+| post_id | user_id | post_date  |
++---------+---------+------------+
+| 1       | 1       | 2024-02-27 |
+| 2       | 5       | 2024-02-06 |
+| 3       | 3       | 2024-02-25 |
+| 4       | 3       | 2024-02-14 |
+| 5       | 3       | 2024-02-06 |
+| 6       | 2       | 2024-02-25 |
++---------+---------+------------+
+</pre>
+
+<p><strong>Output:</strong></p>
+
+<pre class="example-io">
++---------+----------------+------------------+
+| user_id | max_7day_posts | avg_weekly_posts |
++---------+----------------+------------------+
+| 1       | 1              | 0.2500           |
+| 2       | 1              | 0.2500           |
+| 5       | 1              | 0.2500           |
++---------+----------------+------------------+
+</pre>
+
+<p><strong>Explanation:</strong></p>
+
+<ul>
+	<li><strong>User 1:</strong> Made only 1 post in February, resulting in an average of 0.25 posts per week and a max of 1 post in any 7-day period.</li>
+	<li><strong>User 2:</strong> Also made just 1 post, with the same average and max 7-day posting frequency as User 1.</li>
+	<li><strong>User 5:</strong> Like Users 1 and 2, User 5 made only 1 post throughout February, leading to the same average and max 7-day posting metrics.</li>
+	<li><strong>User 3:</strong> Although User 3 made more posts than the others (3 posts), they did not reach twice the average weekly posts in their consecutive 7-day window, so they are not listed in the output.</li>
+</ul>
+
+<p><b>Note:</b> Output table is ordered by user_id in ascending order.</p>
+</div>
+
+## Solutions
+
+### Solution 1
+
+<!-- tabs:start -->
+
+```sql
+
+```
+
+<!-- tabs:end -->
+
+<!-- end -->