feat: update lc problems (#3660)

yanglbme · web-flow · commit c66687a1f78c · 2024-10-22T10:46:27.000+08:00
diff --git a/solution/0100-0199/0160.Intersection of Two Linked Lists/README.md b/solution/0100-0199/0160.Intersection of Two Linked Lists/README.md
@@ -77,7 +77,7 @@ tags:
 
 <pre>
 <strong>输入：</strong>intersectVal = 0, listA = [2,6,4], listB = [1,5], skipA = 3, skipB = 2
-<strong>输出：</strong>null
+<strong>输出：</strong>No intersection
 <strong>解释：</strong>从各自的表头开始算起，链表 A 为 [2,6,4]，链表 B 为 [1,5]。
 由于这两个链表不相交，所以 intersectVal 必须为 0，而 skipA 和 skipB 可以是任意值。
 这两个链表不相交，因此返回 null 。
diff --git a/solution/0100-0199/0160.Intersection of Two Linked Lists/README_EN.md b/solution/0100-0199/0160.Intersection of Two Linked Lists/README_EN.md
@@ -77,8 +77,8 @@ Explanation: The two lists do not intersect, so return null.
 	<li>The number of nodes of <code>listB</code> is in the <code>n</code>.</li>
 	<li><code>1 &lt;= m, n &lt;= 3 * 10<sup>4</sup></code></li>
 	<li><code>1 &lt;= Node.val &lt;= 10<sup>5</sup></code></li>
-	<li><code>0 &lt;= skipA &lt;&nbsp;m</code></li>
-	<li><code>0 &lt;= skipB &lt;&nbsp;n</code></li>
+	<li><code>0 &lt;= skipA &lt;= m</code></li>
+	<li><code>0 &lt;= skipB &lt;= n</code></li>
 	<li><code>intersectVal</code> is <code>0</code> if <code>listA</code> and <code>listB</code> do not intersect.</li>
 	<li><code>intersectVal == listA[skipA] == listB[skipB]</code> if <code>listA</code> and <code>listB</code> intersect.</li>
 </ul>
diff --git a/solution/0100-0199/0191.Number of 1 Bits/README.md b/solution/0100-0199/0191.Number of 1 Bits/README.md
@@ -17,7 +17,7 @@ tags:
 
 <!-- description:start -->
 
-<p>编写一个函数，获取一个正整数的二进制形式并返回其二进制表达式中 <span data-keyword="set-bit">设置位</span> 的个数（也被称为<a href="https://baike.baidu.com/item/%E6%B1%89%E6%98%8E%E9%87%8D%E9%87%8F" target="_blank">汉明重量</a>）。</p>
+<p>给定一个正整数 <code>n</code>，编写一个函数，获取一个正整数的二进制形式并返回其二进制表达式中 <span data-keyword="set-bit">设置位</span> 的个数（也被称为<a href="https://baike.baidu.com/item/%E6%B1%89%E6%98%8E%E9%87%8D%E9%87%8F" target="_blank">汉明重量</a>）。</p>
 
 <p>&nbsp;</p>
 
diff --git a/solution/1800-1899/1808.Maximize Number of Nice Divisors/README.md b/solution/1800-1899/1808.Maximize Number of Nice Divisors/README.md
@@ -7,6 +7,7 @@ source: 第 234 场周赛 Q4
 tags:
     - 递归
     - 数学
+    - 数论
 ---
 
 <!-- problem:start -->
diff --git a/solution/1800-1899/1808.Maximize Number of Nice Divisors/README_EN.md b/solution/1800-1899/1808.Maximize Number of Nice Divisors/README_EN.md
@@ -7,6 +7,7 @@ source: Weekly Contest 234 Q4
 tags:
     - Recursion
     - Math
+    - Number Theory
 ---
 
 <!-- problem:start -->
diff --git a/solution/3000-3099/3043.Find the Length of the Longest Common Prefix/README.md b/solution/3000-3099/3043.Find the Length of the Longest Common Prefix/README.md
@@ -25,7 +25,7 @@ tags:
 
 <p>正整数的 <strong>前缀 </strong>是其 <strong>最左边 </strong>的一位或多位数字组成的整数。例如，<code>123</code> 是整数 <code>12345</code> 的前缀，而 <code>234</code><strong> 不是 </strong>。</p>
 
-<p>设若整数 <code>c</code> 是整数 <code>a</code> 和 <code>b</code> 的<strong> 公共前缀 </strong>，那么 <code>c</code> 需要同时是 <code>a</code> 和 <code>b</code> 的前缀。例如，<code>5655359</code> 和 <code>56554</code> 有公共前缀 <code>565</code> ，而 <code>1223</code> 和 <code>43456</code><strong> 没有 </strong>公共前缀。</p>
+<p>设若整数 <code>c</code> 是整数 <code>a</code> 和 <code>b</code> 的<strong> 公共前缀 </strong>，那么 <code>c</code> 需要同时是 <code>a</code> 和 <code>b</code> 的前缀。例如，<code>5655359</code> 和 <code>56554</code> 有公共前缀 <code>565</code>&nbsp;和 <code>5655</code>，而 <code>1223</code> 和 <code>43456</code><strong> 没有 </strong>公共前缀。</p>
 
 <p>你需要找出属于 <code>arr1</code> 的整数 <code>x</code> 和属于 <code>arr2</code> 的整数 <code>y</code> 组成的所有数对 <code>(x, y)</code> 之中最长的公共前缀的长度。</p>
 
diff --git a/solution/3000-3099/3043.Find the Length of the Longest Common Prefix/README_EN.md b/solution/3000-3099/3043.Find the Length of the Longest Common Prefix/README_EN.md
@@ -25,7 +25,7 @@ tags:
 
 <p>A <strong>prefix</strong> of a positive integer is an integer formed by one or more of its digits, starting from its <strong>leftmost</strong> digit. For example, <code>123</code> is a prefix of the integer <code>12345</code>, while <code>234</code> is <strong>not</strong>.</p>
 
-<p>A <strong>common prefix</strong> of two integers <code>a</code> and <code>b</code> is an integer <code>c</code>, such that <code>c</code> is a prefix of both <code>a</code> and <code>b</code>. For example, <code>5655359</code> and <code>56554</code> have a common prefix <code>565</code> while <code>1223</code> and <code>43456</code> <strong>do not</strong> have a common prefix.</p>
+<p>A <strong>common prefix</strong> of two integers <code>a</code> and <code>b</code> is an integer <code>c</code>, such that <code>c</code> is a prefix of both <code>a</code> and <code>b</code>. For example, <code>5655359</code> and <code>56554</code> have common prefixes <code>565</code> and <code>5655</code> while <code>1223</code> and <code>43456</code> <strong>do not</strong> have a common prefix.</p>
 
 <p>You need to find the length of the <strong>longest common prefix</strong> between all pairs of integers <code>(x, y)</code> such that <code>x</code> belongs to <code>arr1</code> and <code>y</code> belongs to <code>arr2</code>.</p>
 
diff --git a/solution/3300-3399/3323.Minimize Connected Groups by Inserting Interval/README.md b/solution/3300-3399/3323.Minimize Connected Groups by Inserting Interval/README.md
@@ -2,6 +2,10 @@
 comments: true
 difficulty: 中等
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3323.Minimize%20Connected%20Groups%20by%20Inserting%20Interval/README.md
+tags:
+    - 数组
+    - 二分查找
+    - 排序
 ---
 
 <!-- problem:start -->
diff --git a/solution/3300-3399/3323.Minimize Connected Groups by Inserting Interval/README_EN.md b/solution/3300-3399/3323.Minimize Connected Groups by Inserting Interval/README_EN.md
@@ -2,6 +2,10 @@
 comments: true
 difficulty: Medium
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3323.Minimize%20Connected%20Groups%20by%20Inserting%20Interval/README_EN.md
+tags:
+    - Array
+    - Binary Search
+    - Sorting
 ---
 
 <!-- problem:start -->
diff --git a/solution/3300-3399/3324.Find the Sequence of Strings Appeared on the Screen/README.md b/solution/3300-3399/3324.Find the Sequence of Strings Appeared on the Screen/README.md
@@ -2,6 +2,9 @@
 comments: true
 difficulty: 中等
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3324.Find%20the%20Sequence%20of%20Strings%20Appeared%20on%20the%20Screen/README.md
+tags:
+    - 字符串
+    - 模拟
 ---
 
 <!-- problem:start -->
diff --git a/solution/3300-3399/3324.Find the Sequence of Strings Appeared on the Screen/README_EN.md b/solution/3300-3399/3324.Find the Sequence of Strings Appeared on the Screen/README_EN.md
@@ -2,6 +2,9 @@
 comments: true
 difficulty: Medium
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3324.Find%20the%20Sequence%20of%20Strings%20Appeared%20on%20the%20Screen/README_EN.md
+tags:
+    - String
+    - Simulation
 ---
 
 <!-- problem:start -->
diff --git a/solution/3300-3399/3325.Count Substrings With K-Frequency Characters I/README.md b/solution/3300-3399/3325.Count Substrings With K-Frequency Characters I/README.md
@@ -2,6 +2,10 @@
 comments: true
 difficulty: 中等
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3325.Count%20Substrings%20With%20K-Frequency%20Characters%20I/README.md
+tags:
+    - 哈希表
+    - 字符串
+    - 滑动窗口
 ---
 
 <!-- problem:start -->
diff --git a/solution/3300-3399/3325.Count Substrings With K-Frequency Characters I/README_EN.md b/solution/3300-3399/3325.Count Substrings With K-Frequency Characters I/README_EN.md
@@ -2,6 +2,10 @@
 comments: true
 difficulty: Medium
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3325.Count%20Substrings%20With%20K-Frequency%20Characters%20I/README_EN.md
+tags:
+    - Hash Table
+    - String
+    - Sliding Window
 ---
 
 <!-- problem:start -->
@@ -14,9 +18,7 @@ edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3325.Co
 
 <!-- description:start -->
 
-<p>Given a string <code>s</code> and an integer <code>k</code>, return the total number of substrings of <code>s</code> where <strong>at least one</strong> character appears <strong>at least</strong> <code>k</code> times.</p>
-
-<p>A <strong>substring</strong> is a contiguous <b>non-empty</b> sequence of characters within a string.</p>
+<p>Given a string <code>s</code> and an integer <code>k</code>, return the total number of <span data-keyword="substring-nonempty">substrings</span> of <code>s</code> where <strong>at least one</strong> character appears <strong>at least</strong> <code>k</code> times.</p>
 
 <p>&nbsp;</p>
 <p><strong class="example">Example 1:</strong></p>
diff --git a/solution/3300-3399/3326.Minimum Division Operations to Make Array Non Decreasing/README.md b/solution/3300-3399/3326.Minimum Division Operations to Make Array Non Decreasing/README.md
@@ -2,6 +2,11 @@
 comments: true
 difficulty: 中等
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3326.Minimum%20Division%20Operations%20to%20Make%20Array%20Non%20Decreasing/README.md
+tags:
+    - 贪心
+    - 数组
+    - 数学
+    - 数论
 ---
 
 <!-- problem:start -->
diff --git a/solution/3300-3399/3326.Minimum Division Operations to Make Array Non Decreasing/README_EN.md b/solution/3300-3399/3326.Minimum Division Operations to Make Array Non Decreasing/README_EN.md
@@ -2,6 +2,11 @@
 comments: true
 difficulty: Medium
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3326.Minimum%20Division%20Operations%20to%20Make%20Array%20Non%20Decreasing/README_EN.md
+tags:
+    - Greedy
+    - Array
+    - Math
+    - Number Theory
 ---
 
 <!-- problem:start -->
diff --git a/solution/3300-3399/3327.Check if DFS Strings Are Palindromes/README.md b/solution/3300-3399/3327.Check if DFS Strings Are Palindromes/README.md
@@ -2,6 +2,13 @@
 comments: true
 difficulty: 困难
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3327.Check%20if%20DFS%20Strings%20Are%20Palindromes/README.md
+tags:
+    - 树
+    - 深度优先搜索
+    - 数组
+    - 哈希表
+    - 字符串
+    - 哈希函数
 ---
 
 <!-- problem:start -->
@@ -217,7 +224,7 @@ class Solution {
         }
         dfsStr.append(s[i]);
         int r = dfsStr.length();
-        pos[i] = new int[]{l, r};
+        pos[i] = new int[] {l, r};
     }
 }
 ```
diff --git a/solution/3300-3399/3327.Check if DFS Strings Are Palindromes/README_EN.md b/solution/3300-3399/3327.Check if DFS Strings Are Palindromes/README_EN.md
@@ -2,6 +2,13 @@
 comments: true
 difficulty: Hard
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3327.Check%20if%20DFS%20Strings%20Are%20Palindromes/README_EN.md
+tags:
+    - Tree
+    - Depth-First Search
+    - Array
+    - Hash Table
+    - String
+    - Hash Function
 ---
 
 <!-- problem:start -->
@@ -31,13 +38,11 @@ edit_url: https://github.com/doocs/leetcode/edit/main/solution/3300-3399/3327.Ch
 
 <ul>
 	<li>Empty the string <code>dfsStr</code> and call <code>dfs(i)</code>.</li>
-	<li>If the resulting string <code>dfsStr</code> is a <strong>palindrome</strong>, then set <code>answer[i]</code> to <code>true</code>. Otherwise, set <code>answer[i]</code> to <code>false</code>.</li>
+	<li>If the resulting string <code>dfsStr</code> is a <span data-keyword="palindrome-string">palindrome</span>, then set <code>answer[i]</code> to <code>true</code>. Otherwise, set <code>answer[i]</code> to <code>false</code>.</li>
 </ul>
 
 <p>Return the array <code>answer</code>.</p>
 
-<p>A <strong>palindrome</strong> is a string that reads the same forward and backward.</p>
-
 <p>&nbsp;</p>
 <p><strong class="example">Example 1:</strong></p>
 <img alt="" src="https://fastly.jsdelivr.net/gh/doocs/leetcode@main/solution/3300-3399/3327.Check%20if%20DFS%20Strings%20Are%20Palindromes/images/tree1drawio.png" style="width: 240px; height: 256px;" />
@@ -210,7 +215,7 @@ class Solution {
         }
         dfsStr.append(s[i]);
         int r = dfsStr.length();
-        pos[i] = new int[]{l, r};
+        pos[i] = new int[] {l, r};
     }
 }
 ```
diff --git a/solution/3300-3399/3327.Check if DFS Strings Are Palindromes/Solution.java b/solution/3300-3399/3327.Check if DFS Strings Are Palindromes/Solution.java
@@ -58,6 +58,6 @@ private void dfs(int i) {
         }
         dfsStr.append(s[i]);
         int r = dfsStr.length();
-        pos[i] = new int[]{l, r};
+        pos[i] = new int[] {l, r};
     }
 }
diff --git a/solution/3300-3399/3328.Find Cities in Each State II/README.md b/solution/3300-3399/3328.Find Cities in Each State II/README.md
@@ -20,7 +20,7 @@ tags:
 
 <pre>
 +-------------+---------+
-| Column Name | Type    |
+| Column Name | Type    | 
 +-------------+---------+
 | state       | varchar |
 | city        | varchar |
diff --git a/solution/3300-3399/3328.Find Cities in Each State II/README_EN.md b/solution/3300-3399/3328.Find Cities in Each State II/README_EN.md
@@ -20,7 +20,7 @@ tags:
 
 <pre>
 +-------------+---------+
-| Column Name | Type    |
+| Column Name | Type    | 
 +-------------+---------+
 | state       | varchar |
 | city        | varchar |
diff --git a/solution/CONTEST_README.md b/solution/CONTEST_README.md
@@ -26,7 +26,7 @@ comments: true
 
 ## 往期竞赛
 
-#### 第 420 场周赛(2024-10-20 10:30, 90 分钟) 参赛人数 2921
+#### 第 420 场周赛(2024-10-20 10:30, 90 分钟) 参赛人数 2995
 
 - [3324. 出现在屏幕上的字符串序列](/solution/3300-3399/3324.Find%20the%20Sequence%20of%20Strings%20Appeared%20on%20the%20Screen/README.md)
 - [3325. 字符至少出现 K 次的子字符串 I](/solution/3300-3399/3325.Count%20Substrings%20With%20K-Frequency%20Characters%20I/README.md)
diff --git a/solution/DATABASE_README.md b/solution/DATABASE_README.md
@@ -298,7 +298,7 @@
 | 3293 | [计算产品最终价格](/solution/3200-3299/3293.Calculate%20Product%20Final%20Price/README.md)                                                                   | `数据库` | 中等 | 🔒   |
 | 3308 | [Find Top Performing Driver](/solution/3300-3399/3308.Find%20Top%20Performing%20Driver/README.md)                                                            | `数据库` | 中等 | 🔒   |
 | 3322 | [英超积分榜排名 III](/solution/3300-3399/3322.Premier%20League%20Table%20Ranking%20III/README.md)                                                            | `数据库` | 中等 | 🔒   |
-| 3328 | [Find Cities in Each State II](/solution/3300-3399/3328.Find%20Cities%20in%20Each%20State%20II/README.md)                                                    |          | 中等 | 🔒   |
+| 3328 | [Find Cities in Each State II](/solution/3300-3399/3328.Find%20Cities%20in%20Each%20State%20II/README.md)                                                    | `数据库` | 中等 | 🔒   |
 
 ## 版权
 
diff --git a/solution/DATABASE_README_EN.md b/solution/DATABASE_README_EN.md
@@ -296,7 +296,7 @@ Press <kbd>Control</kbd> + <kbd>F</kbd>(or <kbd>Command</kbd> + <kbd>F</kbd> on
 | 3293 | [Calculate Product Final Price](/solution/3200-3299/3293.Calculate%20Product%20Final%20Price/README_EN.md)                                                                                   | `Database` | Medium     | 🔒     |
 | 3308 | [Find Top Performing Driver](/solution/3300-3399/3308.Find%20Top%20Performing%20Driver/README_EN.md)                                                                                         | `Database` | Medium     | 🔒     |
 | 3322 | [Premier League Table Ranking III](/solution/3300-3399/3322.Premier%20League%20Table%20Ranking%20III/README_EN.md)                                                                           | `Database` | Medium     | 🔒     |
-| 3328 | [Find Cities in Each State II](/solution/3300-3399/3328.Find%20Cities%20in%20Each%20State%20II/README_EN.md)                                                                                 |            | Medium     | 🔒     |
+| 3328 | [Find Cities in Each State II](/solution/3300-3399/3328.Find%20Cities%20in%20Each%20State%20II/README_EN.md)                                                                                 | `Database` | Medium     | 🔒     |
 
 ## Copyright
 
diff --git a/solution/README.md b/solution/README.md
@@ -1818,7 +1818,7 @@
 |  1805  |  [字符串中不同整数的数目](/solution/1800-1899/1805.Number%20of%20Different%20Integers%20in%20a%20String/README.md)  |  `哈希表`,`字符串`  |  简单  |  第 234 场周赛  |
 |  1806  |  [还原排列的最少操作步数](/solution/1800-1899/1806.Minimum%20Number%20of%20Operations%20to%20Reinitialize%20a%20Permutation/README.md)  |  `数组`,`数学`,`模拟`  |  中等  |  第 234 场周赛  |
 |  1807  |  [替换字符串中的括号内容](/solution/1800-1899/1807.Evaluate%20the%20Bracket%20Pairs%20of%20a%20String/README.md)  |  `数组`,`哈希表`,`字符串`  |  中等  |  第 234 场周赛  |
-|  1808  |  [好因子的最大数目](/solution/1800-1899/1808.Maximize%20Number%20of%20Nice%20Divisors/README.md)  |  `递归`,`数学`  |  困难  |  第 234 场周赛  |
+|  1808  |  [好因子的最大数目](/solution/1800-1899/1808.Maximize%20Number%20of%20Nice%20Divisors/README.md)  |  `递归`,`数学`,`数论`  |  困难  |  第 234 场周赛  |
 |  1809  |  [没有广告的剧集](/solution/1800-1899/1809.Ad-Free%20Sessions/README.md)  |  `数据库`  |  简单  |  🔒  |
 |  1810  |  [隐藏网格下的最小消耗路径](/solution/1800-1899/1810.Minimum%20Path%20Cost%20in%20a%20Hidden%20Grid/README.md)  |  `深度优先搜索`,`广度优先搜索`,`图`,`交互`,`堆（优先队列）`  |  中等  |  🔒  |
 |  1811  |  [寻找面试候选人](/solution/1800-1899/1811.Find%20Interview%20Candidates/README.md)  |  `数据库`  |  中等  |  🔒  |
@@ -3333,12 +3333,12 @@
 |  3320  |  [统计能获胜的出招序列数](/solution/3300-3399/3320.Count%20The%20Number%20of%20Winning%20Sequences/README.md)  |  `字符串`,`动态规划`  |  困难  |  第 419 场周赛  |
 |  3321  |  [计算子数组的 x-sum II](/solution/3300-3399/3321.Find%20X-Sum%20of%20All%20K-Long%20Subarrays%20II/README.md)  |  `数组`,`哈希表`,`滑动窗口`,`堆（优先队列）`  |  困难  |  第 419 场周赛  |
 |  3322  |  [英超积分榜排名 III](/solution/3300-3399/3322.Premier%20League%20Table%20Ranking%20III/README.md)  |  `数据库`  |  中等  |  🔒  |
-|  3323  |  [通过插入区间最小化连通组](/solution/3300-3399/3323.Minimize%20Connected%20Groups%20by%20Inserting%20Interval/README.md)  |    |  中等  |  🔒  |
-|  3324  |  [出现在屏幕上的字符串序列](/solution/3300-3399/3324.Find%20the%20Sequence%20of%20Strings%20Appeared%20on%20the%20Screen/README.md)  |    |  中等  |  第 420 场周赛  |
-|  3325  |  [字符至少出现 K 次的子字符串 I](/solution/3300-3399/3325.Count%20Substrings%20With%20K-Frequency%20Characters%20I/README.md)  |    |  中等  |  第 420 场周赛  |
-|  3326  |  [使数组非递减的最少除法操作次数](/solution/3300-3399/3326.Minimum%20Division%20Operations%20to%20Make%20Array%20Non%20Decreasing/README.md)  |    |  中等  |  第 420 场周赛  |
-|  3327  |  [判断 DFS 字符串是否是回文串](/solution/3300-3399/3327.Check%20if%20DFS%20Strings%20Are%20Palindromes/README.md)  |    |  困难  |  第 420 场周赛  |
-|  3328  |  [Find Cities in Each State II](/solution/3300-3399/3328.Find%20Cities%20in%20Each%20State%20II/README.md)  |    |  中等  |  🔒  |
+|  3323  |  [通过插入区间最小化连通组](/solution/3300-3399/3323.Minimize%20Connected%20Groups%20by%20Inserting%20Interval/README.md)  |  `数组`,`二分查找`,`排序`  |  中等  |  🔒  |
+|  3324  |  [出现在屏幕上的字符串序列](/solution/3300-3399/3324.Find%20the%20Sequence%20of%20Strings%20Appeared%20on%20the%20Screen/README.md)  |  `字符串`,`模拟`  |  中等  |  第 420 场周赛  |
+|  3325  |  [字符至少出现 K 次的子字符串 I](/solution/3300-3399/3325.Count%20Substrings%20With%20K-Frequency%20Characters%20I/README.md)  |  `哈希表`,`字符串`,`滑动窗口`  |  中等  |  第 420 场周赛  |
+|  3326  |  [使数组非递减的最少除法操作次数](/solution/3300-3399/3326.Minimum%20Division%20Operations%20to%20Make%20Array%20Non%20Decreasing/README.md)  |  `贪心`,`数组`,`数学`,`数论`  |  中等  |  第 420 场周赛  |
+|  3327  |  [判断 DFS 字符串是否是回文串](/solution/3300-3399/3327.Check%20if%20DFS%20Strings%20Are%20Palindromes/README.md)  |  `树`,`深度优先搜索`,`数组`,`哈希表`,`字符串`,`哈希函数`  |  困难  |  第 420 场周赛  |
+|  3328  |  [Find Cities in Each State II](/solution/3300-3399/3328.Find%20Cities%20in%20Each%20State%20II/README.md)  |  `数据库`  |  中等  |  🔒  |
 
 ## 版权
 
diff --git a/solution/README_EN.md b/solution/README_EN.md
diff --git a/solution/contest.json b/solution/contest.json

-Original file line number
+Diff line change
 tags:
     - 递归
     - 数学
 +    - 数论
 ---
 <!-- problem:start -->