docs: update SOLUTION_TREE.md

Author: yanglbme

README.md

@@ -3,7 +3,7 @@
 </p>
 
 <p align="center">
-  <a href="https://github.com/doocs/leetcode"><img src="https://badgen.net/badge/lang/Java,CPP,Python,JS,Ruby,Go,.../orange?list=1" alt="language"></a>
+  <a href="https://github.com/doocs/leetcode"><img src="https://badgen.net/badge/lang/Java,C++,Python,JS,Ruby,Go,.../orange?list=1" alt="language"></a>
   <a href="https://github.com/doocs/leetcode/stargazers"><img src="https://badgen.net/github/stars/doocs/leetcode" alt="stars"></a>
   <a href="https://github.com/doocs/leetcode/network/members"><img src="https://badgen.net/github/forks/doocs/leetcode" alt="forks"></a>
   <a href="https://github.com/doocs/leetcode/issues"><img src="https://badgen.net/github/open-issues/doocs/leetcode" alt="issues"></a>

SOLUTION_TREE.md

@@ -36,6 +36,7 @@
 │   ├── Solution.java
 │   └── Solution.js
 ├── 0006.ZigZag Conversion
+│   ├── README.md
 │   ├── Solution.cpp
 │   ├── Solution.java
 │   ├── Solution.js
@@ -956,6 +957,16 @@
 │   └── Solution.py
 ├── 1022.Smallest Integer Divisible by K
 │   └── Solution.py
-└── 1023.Binary String With Substrings Representing 1 To N
-    └── Solution.py
+├── 1023.Binary String With Substrings Representing 1 To N
+│   └── Solution.py
+├── 1024.Video Stitching
+│   └── Solution.cpp
+├── 1025.Divisor Game
+│   └── Solution.cpp
+├── 1026.Maximum Difference Between Node and Ancestor
+│   └── Solution.cpp
+├── 1027.Longest Arithmetic Sequence
+│   └── Solution.cpp
+└── 1028.Recover a Tree From Preorder Traversal
+    └── Solution.cpp
 ```