feat: update lc problems (#4259)

Author: yanglbme

solution/3400-3499/3481.Apply Substitutions/README.md

@@ -2,6 +2,14 @@
 comments: true
 difficulty: 中等
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3400-3499/3481.Apply%20Substitutions/README.md
+tags:
+    - 深度优先搜索
+    - 广度优先搜索
+    - 图
+    - 拓扑排序
+    - 数组
+    - 哈希表
+    - 字符串
 ---
 
 <!-- problem:start -->

solution/3400-3499/3481.Apply Substitutions/README_EN.md

@@ -2,6 +2,14 @@
 comments: true
 difficulty: Medium
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3400-3499/3481.Apply%20Substitutions/README_EN.md
+tags:
+    - Depth-First Search
+    - Breadth-First Search
+    - Graph
+    - Topological Sort
+    - Array
+    - Hash Table
+    - String
 ---
 
 <!-- problem:start -->

solution/3400-3499/3483.Unique 3-Digit Even Numbers/README.md

@@ -2,6 +2,11 @@
 comments: true
 difficulty: 简单
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3400-3499/3483.Unique%203-Digit%20Even%20Numbers/README.md
+tags:
+    - 递归
+    - 数组
+    - 哈希表
+    - 枚举
 ---
 
 <!-- problem:start -->

solution/3400-3499/3483.Unique 3-Digit Even Numbers/README_EN.md

@@ -2,6 +2,11 @@
 comments: true
 difficulty: Easy
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3400-3499/3483.Unique%203-Digit%20Even%20Numbers/README_EN.md
+tags:
+    - Recursion
+    - Array
+    - Hash Table
+    - Enumeration
 ---
 
 <!-- problem:start -->

solution/3400-3499/3484.Design Spreadsheet/README.md

@@ -2,6 +2,12 @@
 comments: true
 difficulty: 中等
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3400-3499/3484.Design%20Spreadsheet/README.md
+tags:
+    - 设计
+    - 数组
+    - 哈希表
+    - 字符串
+    - 矩阵
 ---
 
 <!-- problem:start -->

solution/3400-3499/3484.Design Spreadsheet/README_EN.md

@@ -2,6 +2,12 @@
 comments: true
 difficulty: Medium
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3400-3499/3484.Design%20Spreadsheet/README_EN.md
+tags:
+    - Design
+    - Array
+    - Hash Table
+    - String
+    - Matrix
 ---
 
 <!-- problem:start -->

solution/3400-3499/3485.Longest Common Prefix of K Strings After Removal/README.md

@@ -2,6 +2,10 @@
 comments: true
 difficulty: 困难
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3400-3499/3485.Longest%20Common%20Prefix%20of%20K%20Strings%20After%20Removal/README.md
+tags:
+    - 字典树
+    - 数组
+    - 字符串
 ---
 
 <!-- problem:start -->

solution/3400-3499/3485.Longest Common Prefix of K Strings After Removal/README_EN.md

@@ -2,6 +2,10 @@
 comments: true
 difficulty: Hard
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3400-3499/3485.Longest%20Common%20Prefix%20of%20K%20Strings%20After%20Removal/README_EN.md
+tags:
+    - Trie
+    - Array
+    - String
 ---
 
 <!-- problem:start -->

solution/3400-3499/3486.Longest Special Path II/README.md

@@ -2,6 +2,12 @@
 comments: true
 difficulty: 困难
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3400-3499/3486.Longest%20Special%20Path%20II/README.md
+tags:
+    - 树
+    - 深度优先搜索
+    - 数组
+    - 哈希表
+    - 前缀和
 ---
 
 <!-- problem:start -->

solution/3400-3499/3486.Longest Special Path II/README_EN.md

@@ -2,6 +2,12 @@
 comments: true
 difficulty: Hard
 edit_url: https://github.com/doocs/leetcode/edit/main/solution/3400-3499/3486.Longest%20Special%20Path%20II/README_EN.md
+tags:
+    - Tree
+    - Depth-First Search
+    - Array
+    - Hash Table
+    - Prefix Sum
 ---
 
 <!-- problem:start -->