diff --git a/codes/c/chapter_array_and_linkedlist/array.c b/codes/c/chapter_array_and_linkedlist/array.c
index 300124a7..33dc9990 100644
--- a/codes/c/chapter_array_and_linkedlist/array.c
+++ b/codes/c/chapter_array_and_linkedlist/array.c
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array.c
  * Created Time: 2022-12-20
  * Author: MolDuM (moldum@163.com)
diff --git a/codes/c/chapter_computational_complexity/time_complexity.c b/codes/c/chapter_computational_complexity/time_complexity.c
index 8df06a75..b8821ec6 100644
--- a/codes/c/chapter_computational_complexity/time_complexity.c
+++ b/codes/c/chapter_computational_complexity/time_complexity.c
@@ -1,4 +1,4 @@
-/*
+/**
  * File: time_complexity.c
  * Created Time: 2023-01-03
  * Author: sjinzh (sjinzh@gmail.com)
@@ -172,4 +172,3 @@ int main(int argc, char *argv[]) {
     getchar();
     return 0;
 }
-
diff --git a/codes/c/chapter_computational_complexity/worst_best_time_complexity.c b/codes/c/chapter_computational_complexity/worst_best_time_complexity.c
index 88ed4dd2..9173f32d 100644
--- a/codes/c/chapter_computational_complexity/worst_best_time_complexity.c
+++ b/codes/c/chapter_computational_complexity/worst_best_time_complexity.c
@@ -1,4 +1,4 @@
-/*
+/**
  * File: worst_best_time_complexity.c
  * Created Time: 2023-01-03
  * Author: sjinzh (sjinzh@gmail.com)
@@ -52,4 +52,3 @@ int main(int argc, char *argv[]) {
     getchar();
     return 0;
 }
-
diff --git a/codes/c/chapter_sorting/insertion_sort.c b/codes/c/chapter_sorting/insertion_sort.c
index 318a4027..80e8b127 100644
--- a/codes/c/chapter_sorting/insertion_sort.c
+++ b/codes/c/chapter_sorting/insertion_sort.c
@@ -1,4 +1,4 @@
-/*
+/**
  * File: insertion_sort.c
  * Created Time: 2022-12-29
  * Author: Listening (https://github.com/L-Super)
diff --git a/codes/c/include/PrintUtil.h b/codes/c/include/PrintUtil.h
index e471f038..59a8eac1 100644
--- a/codes/c/include/PrintUtil.h
+++ b/codes/c/include/PrintUtil.h
@@ -1,4 +1,4 @@
-/*
+/**
  * File: PrintUtil.h
  * Created Time: 2022-12-21
  * Author: MolDum (moldum@163.com)
@@ -26,5 +26,3 @@ static void printArray(int* arr, int n)
     }
     printf("%d]\n", arr[n-1]);
 }
-
-
diff --git a/codes/c/include/include.h b/codes/c/include/include.h
index c567aa2e..2c4fd925 100644
--- a/codes/c/include/include.h
+++ b/codes/c/include/include.h
@@ -1,4 +1,4 @@
-/*
+/**
  * File: include.h
  * Created Time: 2022-12-20
  * Author: MolDuM (moldum@163.com)
@@ -11,5 +11,3 @@
 #include <time.h>
 
 #include "PrintUtil.h"
-
-
diff --git a/codes/cpp/chapter_array_and_linkedlist/array.cpp b/codes/cpp/chapter_array_and_linkedlist/array.cpp
index 22c5e50d..6cf4919b 100644
--- a/codes/cpp/chapter_array_and_linkedlist/array.cpp
+++ b/codes/cpp/chapter_array_and_linkedlist/array.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_array_and_linkedlist/linked_list.cpp b/codes/cpp/chapter_array_and_linkedlist/linked_list.cpp
index 4cf04920..13fa6869 100644
--- a/codes/cpp/chapter_array_and_linkedlist/linked_list.cpp
+++ b/codes/cpp/chapter_array_and_linkedlist/linked_list.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: linked_list.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_array_and_linkedlist/list.cpp b/codes/cpp/chapter_array_and_linkedlist/list.cpp
index 287cae1b..44bbf88c 100644
--- a/codes/cpp/chapter_array_and_linkedlist/list.cpp
+++ b/codes/cpp/chapter_array_and_linkedlist/list.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: list.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_array_and_linkedlist/my_list.cpp b/codes/cpp/chapter_array_and_linkedlist/my_list.cpp
index f64bd27c..0b550475 100644
--- a/codes/cpp/chapter_array_and_linkedlist/my_list.cpp
+++ b/codes/cpp/chapter_array_and_linkedlist/my_list.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: my_list.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_computational_complexity/leetcode_two_sum.cpp b/codes/cpp/chapter_computational_complexity/leetcode_two_sum.cpp
index 9df3b0a4..dd561d54 100644
--- a/codes/cpp/chapter_computational_complexity/leetcode_two_sum.cpp
+++ b/codes/cpp/chapter_computational_complexity/leetcode_two_sum.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: leetcode_two_sum.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_computational_complexity/space_complexity.cpp b/codes/cpp/chapter_computational_complexity/space_complexity.cpp
index 136e85bf..6352b9d4 100644
--- a/codes/cpp/chapter_computational_complexity/space_complexity.cpp
+++ b/codes/cpp/chapter_computational_complexity/space_complexity.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: space_complexity.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_computational_complexity/time_complexity.cpp b/codes/cpp/chapter_computational_complexity/time_complexity.cpp
index 68408bcc..cb1a2077 100644
--- a/codes/cpp/chapter_computational_complexity/time_complexity.cpp
+++ b/codes/cpp/chapter_computational_complexity/time_complexity.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: time_complexity.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_computational_complexity/worst_best_time_complexity.cpp b/codes/cpp/chapter_computational_complexity/worst_best_time_complexity.cpp
index 9b215cf8..c2916cb4 100644
--- a/codes/cpp/chapter_computational_complexity/worst_best_time_complexity.cpp
+++ b/codes/cpp/chapter_computational_complexity/worst_best_time_complexity.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: worst_best_time_complexity.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_hashing/array_hash_map.cpp b/codes/cpp/chapter_hashing/array_hash_map.cpp
index 394e3681..8b92174e 100644
--- a/codes/cpp/chapter_hashing/array_hash_map.cpp
+++ b/codes/cpp/chapter_hashing/array_hash_map.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array_hash_map.cpp
  * Created Time: 2022-12-14
  * Author: msk397 (machangxinq@gmail.com)
diff --git a/codes/cpp/chapter_hashing/hash_map.cpp b/codes/cpp/chapter_hashing/hash_map.cpp
index 898f679a..829265d6 100644
--- a/codes/cpp/chapter_hashing/hash_map.cpp
+++ b/codes/cpp/chapter_hashing/hash_map.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: hash_map.cpp
  * Created Time: 2022-12-14
  * Author: msk397 (machangxinq@gmail.com)
diff --git a/codes/cpp/chapter_searching/binary_search.cpp b/codes/cpp/chapter_searching/binary_search.cpp
index 9729128a..8d727ab4 100644
--- a/codes/cpp/chapter_searching/binary_search.cpp
+++ b/codes/cpp/chapter_searching/binary_search.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: binary_search.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_searching/hashing_search.cpp b/codes/cpp/chapter_searching/hashing_search.cpp
index 674376ff..ebc2fb01 100644
--- a/codes/cpp/chapter_searching/hashing_search.cpp
+++ b/codes/cpp/chapter_searching/hashing_search.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: hashing_search.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_searching/linear_search.cpp b/codes/cpp/chapter_searching/linear_search.cpp
index e1f2a567..7b509276 100644
--- a/codes/cpp/chapter_searching/linear_search.cpp
+++ b/codes/cpp/chapter_searching/linear_search.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: linear_search.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_sorting/bubble_sort.cpp b/codes/cpp/chapter_sorting/bubble_sort.cpp
index 87ca305d..27427cae 100644
--- a/codes/cpp/chapter_sorting/bubble_sort.cpp
+++ b/codes/cpp/chapter_sorting/bubble_sort.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: bubble_sort.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_sorting/insertion_sort.cpp b/codes/cpp/chapter_sorting/insertion_sort.cpp
index 9ae5988c..a40e4a5f 100644
--- a/codes/cpp/chapter_sorting/insertion_sort.cpp
+++ b/codes/cpp/chapter_sorting/insertion_sort.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: insertion_sort.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_sorting/merge_sort.cpp b/codes/cpp/chapter_sorting/merge_sort.cpp
index b406529a..89b5b09c 100644
--- a/codes/cpp/chapter_sorting/merge_sort.cpp
+++ b/codes/cpp/chapter_sorting/merge_sort.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: merge_sort.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_sorting/quick_sort.cpp b/codes/cpp/chapter_sorting/quick_sort.cpp
index 4e4430e7..c298f5be 100644
--- a/codes/cpp/chapter_sorting/quick_sort.cpp
+++ b/codes/cpp/chapter_sorting/quick_sort.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: quick_sort.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_stack_and_queue/array_queue.cpp b/codes/cpp/chapter_stack_and_queue/array_queue.cpp
index 8e87da50..de5e780f 100644
--- a/codes/cpp/chapter_stack_and_queue/array_queue.cpp
+++ b/codes/cpp/chapter_stack_and_queue/array_queue.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array_queue.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_stack_and_queue/array_stack.cpp b/codes/cpp/chapter_stack_and_queue/array_stack.cpp
index e9ecae2a..e6159e8c 100644
--- a/codes/cpp/chapter_stack_and_queue/array_stack.cpp
+++ b/codes/cpp/chapter_stack_and_queue/array_stack.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array_stack.cpp
  * Created Time: 2022-11-28
  * Author: qualifier1024 (2539244001@qq.com)
diff --git a/codes/cpp/chapter_stack_and_queue/deque.cpp b/codes/cpp/chapter_stack_and_queue/deque.cpp
index 96cf5811..e60af11e 100644
--- a/codes/cpp/chapter_stack_and_queue/deque.cpp
+++ b/codes/cpp/chapter_stack_and_queue/deque.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: deque.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_stack_and_queue/linkedlist_queue.cpp b/codes/cpp/chapter_stack_and_queue/linkedlist_queue.cpp
index 10cba0aa..ae22740d 100644
--- a/codes/cpp/chapter_stack_and_queue/linkedlist_queue.cpp
+++ b/codes/cpp/chapter_stack_and_queue/linkedlist_queue.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: linkedlist_queue.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_stack_and_queue/linkedlist_stack.cpp b/codes/cpp/chapter_stack_and_queue/linkedlist_stack.cpp
index cf6f6ab3..495f2660 100644
--- a/codes/cpp/chapter_stack_and_queue/linkedlist_stack.cpp
+++ b/codes/cpp/chapter_stack_and_queue/linkedlist_stack.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: linkedlist_stack.cpp
  * Created Time: 2022-11-28
  * Author: qualifier1024 (2539244001@qq.com)
diff --git a/codes/cpp/chapter_stack_and_queue/queue.cpp b/codes/cpp/chapter_stack_and_queue/queue.cpp
index 2ca504a2..6bc37302 100644
--- a/codes/cpp/chapter_stack_and_queue/queue.cpp
+++ b/codes/cpp/chapter_stack_and_queue/queue.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: queue.cpp
  * Created Time: 2022-11-28
  * Author: qualifier1024 (2539244001@qq.com)
diff --git a/codes/cpp/chapter_stack_and_queue/stack.cpp b/codes/cpp/chapter_stack_and_queue/stack.cpp
index cc027697..7bbfd6b9 100644
--- a/codes/cpp/chapter_stack_and_queue/stack.cpp
+++ b/codes/cpp/chapter_stack_and_queue/stack.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: stack.cpp
  * Created Time: 2022-11-28
  * Author: qualifier1024 (2539244001@qq.com)
diff --git a/codes/cpp/chapter_tree/avl_tree.cpp b/codes/cpp/chapter_tree/avl_tree.cpp
index b816f975..8bc0741d 100644
--- a/codes/cpp/chapter_tree/avl_tree.cpp
+++ b/codes/cpp/chapter_tree/avl_tree.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: avl_tree.cpp
  * Created Time: 2022-12-2
  * Author: mgisr (maguagua0706@gmail.com)
diff --git a/codes/cpp/chapter_tree/binary_search_tree.cpp b/codes/cpp/chapter_tree/binary_search_tree.cpp
index c7f8734d..78e79774 100644
--- a/codes/cpp/chapter_tree/binary_search_tree.cpp
+++ b/codes/cpp/chapter_tree/binary_search_tree.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: binary_search_tree.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_tree/binary_tree.cpp b/codes/cpp/chapter_tree/binary_tree.cpp
index fb00431e..cd06778a 100644
--- a/codes/cpp/chapter_tree/binary_tree.cpp
+++ b/codes/cpp/chapter_tree/binary_tree.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: binary_tree.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_tree/binary_tree_bfs.cpp b/codes/cpp/chapter_tree/binary_tree_bfs.cpp
index 30c2d600..236f6244 100644
--- a/codes/cpp/chapter_tree/binary_tree_bfs.cpp
+++ b/codes/cpp/chapter_tree/binary_tree_bfs.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: binary_tree_bfs.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/chapter_tree/binary_tree_dfs.cpp b/codes/cpp/chapter_tree/binary_tree_dfs.cpp
index 08a0a331..51287b73 100644
--- a/codes/cpp/chapter_tree/binary_tree_dfs.cpp
+++ b/codes/cpp/chapter_tree/binary_tree_dfs.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: binary_tree_dfs.cpp
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/include/ListNode.hpp b/codes/cpp/include/ListNode.hpp
index bd91f255..9e6bd069 100644
--- a/codes/cpp/include/ListNode.hpp
+++ b/codes/cpp/include/ListNode.hpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: PrintUtil.hpp
  * Created Time: 2021-12-19
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/include/PrintUtil.hpp b/codes/cpp/include/PrintUtil.hpp
index 544ee85d..06397855 100644
--- a/codes/cpp/include/PrintUtil.hpp
+++ b/codes/cpp/include/PrintUtil.hpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: PrintUtil.hpp
  * Created Time: 2021-12-19
  * Author: Krahets (krahets@163.com), msk397 (machangxinq@gmail.com)
diff --git a/codes/cpp/include/TreeNode.hpp b/codes/cpp/include/TreeNode.hpp
index b3b27a65..ab54c774 100644
--- a/codes/cpp/include/TreeNode.hpp
+++ b/codes/cpp/include/TreeNode.hpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: PrintUtil.hpp
  * Created Time: 2021-12-19
  * Author: Krahets (krahets@163.com)
diff --git a/codes/cpp/include/include.hpp b/codes/cpp/include/include.hpp
index 28eab2cd..8e4a8070 100644
--- a/codes/cpp/include/include.hpp
+++ b/codes/cpp/include/include.hpp
@@ -1,4 +1,4 @@
-/*
+/**
  * File: PrintUtil.hpp
  * Created Time: 2021-12-19
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_array_and_linkedlist/array.java b/codes/java/chapter_array_and_linkedlist/array.java
index 6afd3dfd..d3cb176c 100644
--- a/codes/java/chapter_array_and_linkedlist/array.java
+++ b/codes/java/chapter_array_and_linkedlist/array.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_array_and_linkedlist/linked_list.java b/codes/java/chapter_array_and_linkedlist/linked_list.java
index 3d445117..570778ff 100644
--- a/codes/java/chapter_array_and_linkedlist/linked_list.java
+++ b/codes/java/chapter_array_and_linkedlist/linked_list.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: linked_list.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_array_and_linkedlist/list.java b/codes/java/chapter_array_and_linkedlist/list.java
index 1f13bc2e..dc4d897f 100644
--- a/codes/java/chapter_array_and_linkedlist/list.java
+++ b/codes/java/chapter_array_and_linkedlist/list.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: list.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_array_and_linkedlist/my_list.java b/codes/java/chapter_array_and_linkedlist/my_list.java
index 1f9fdc3e..cce8da68 100644
--- a/codes/java/chapter_array_and_linkedlist/my_list.java
+++ b/codes/java/chapter_array_and_linkedlist/my_list.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: my_list.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_computational_complexity/leetcode_two_sum.java b/codes/java/chapter_computational_complexity/leetcode_two_sum.java
index 45106867..b9f8bf4d 100644
--- a/codes/java/chapter_computational_complexity/leetcode_two_sum.java
+++ b/codes/java/chapter_computational_complexity/leetcode_two_sum.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: leetcode_two_sum.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_computational_complexity/space_complexity.java b/codes/java/chapter_computational_complexity/space_complexity.java
index a81026d8..275a37ec 100644
--- a/codes/java/chapter_computational_complexity/space_complexity.java
+++ b/codes/java/chapter_computational_complexity/space_complexity.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: space_complexity.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_computational_complexity/time_complexity.java b/codes/java/chapter_computational_complexity/time_complexity.java
index d303c510..5a232e5b 100644
--- a/codes/java/chapter_computational_complexity/time_complexity.java
+++ b/codes/java/chapter_computational_complexity/time_complexity.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: time_complexity.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_computational_complexity/worst_best_time_complexity.java b/codes/java/chapter_computational_complexity/worst_best_time_complexity.java
index 536bf3af..c0fe0baa 100644
--- a/codes/java/chapter_computational_complexity/worst_best_time_complexity.java
+++ b/codes/java/chapter_computational_complexity/worst_best_time_complexity.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: worst_best_time_complexity.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_hashing/array_hash_map.java b/codes/java/chapter_hashing/array_hash_map.java
index fb0073ab..68df1f3b 100644
--- a/codes/java/chapter_hashing/array_hash_map.java
+++ b/codes/java/chapter_hashing/array_hash_map.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: hash_map.java
  * Created Time: 2022-12-04
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_hashing/hash_map.java b/codes/java/chapter_hashing/hash_map.java
index bb72a4b0..fe3f822f 100644
--- a/codes/java/chapter_hashing/hash_map.java
+++ b/codes/java/chapter_hashing/hash_map.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: hash_map.java
  * Created Time: 2022-12-04
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_searching/binary_search.java b/codes/java/chapter_searching/binary_search.java
index cb5bd941..05c2a4d3 100644
--- a/codes/java/chapter_searching/binary_search.java
+++ b/codes/java/chapter_searching/binary_search.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: binary_search.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_searching/hashing_search.java b/codes/java/chapter_searching/hashing_search.java
index c68025de..cfd01531 100644
--- a/codes/java/chapter_searching/hashing_search.java
+++ b/codes/java/chapter_searching/hashing_search.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: hashing_search.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_searching/linear_search.java b/codes/java/chapter_searching/linear_search.java
index 2e8e410e..c33b5117 100644
--- a/codes/java/chapter_searching/linear_search.java
+++ b/codes/java/chapter_searching/linear_search.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: linear_search.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_sorting/bubble_sort.java b/codes/java/chapter_sorting/bubble_sort.java
index f006a3ab..082d2d90 100644
--- a/codes/java/chapter_sorting/bubble_sort.java
+++ b/codes/java/chapter_sorting/bubble_sort.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: bubble_sort.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_sorting/insertion_sort.java b/codes/java/chapter_sorting/insertion_sort.java
index 9a6a0310..fb5b2cd6 100644
--- a/codes/java/chapter_sorting/insertion_sort.java
+++ b/codes/java/chapter_sorting/insertion_sort.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: insertion_sort.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_sorting/merge_sort.java b/codes/java/chapter_sorting/merge_sort.java
index fe9f183a..68f76c9b 100644
--- a/codes/java/chapter_sorting/merge_sort.java
+++ b/codes/java/chapter_sorting/merge_sort.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: merge_sort.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_sorting/quick_sort.java b/codes/java/chapter_sorting/quick_sort.java
index d65aa8e4..b121b757 100644
--- a/codes/java/chapter_sorting/quick_sort.java
+++ b/codes/java/chapter_sorting/quick_sort.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: quick_sort.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_stack_and_queue/array_queue.java b/codes/java/chapter_stack_and_queue/array_queue.java
index 198c9071..5a1ab645 100644
--- a/codes/java/chapter_stack_and_queue/array_queue.java
+++ b/codes/java/chapter_stack_and_queue/array_queue.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array_queue.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_stack_and_queue/array_stack.java b/codes/java/chapter_stack_and_queue/array_stack.java
index 12ac5283..e32b1640 100644
--- a/codes/java/chapter_stack_and_queue/array_stack.java
+++ b/codes/java/chapter_stack_and_queue/array_stack.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array_stack.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_stack_and_queue/deque.java b/codes/java/chapter_stack_and_queue/deque.java
index a29e6e7c..1a8f196b 100644
--- a/codes/java/chapter_stack_and_queue/deque.java
+++ b/codes/java/chapter_stack_and_queue/deque.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: deque.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_stack_and_queue/linkedlist_queue.java b/codes/java/chapter_stack_and_queue/linkedlist_queue.java
index 92cdfab0..82e2571c 100644
--- a/codes/java/chapter_stack_and_queue/linkedlist_queue.java
+++ b/codes/java/chapter_stack_and_queue/linkedlist_queue.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: linkedlist_queue.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_stack_and_queue/linkedlist_stack.java b/codes/java/chapter_stack_and_queue/linkedlist_stack.java
index 794c80c3..b1a78aa4 100644
--- a/codes/java/chapter_stack_and_queue/linkedlist_stack.java
+++ b/codes/java/chapter_stack_and_queue/linkedlist_stack.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: linkedlist_stack.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_stack_and_queue/queue.java b/codes/java/chapter_stack_and_queue/queue.java
index 232943fb..25457fbd 100644
--- a/codes/java/chapter_stack_and_queue/queue.java
+++ b/codes/java/chapter_stack_and_queue/queue.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: queue.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_stack_and_queue/stack.java b/codes/java/chapter_stack_and_queue/stack.java
index 9c94eb62..2a725922 100644
--- a/codes/java/chapter_stack_and_queue/stack.java
+++ b/codes/java/chapter_stack_and_queue/stack.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: stack.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_tree/avl_tree.java b/codes/java/chapter_tree/avl_tree.java
index 2f731b7e..9120262f 100644
--- a/codes/java/chapter_tree/avl_tree.java
+++ b/codes/java/chapter_tree/avl_tree.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: avl_tree.java
  * Created Time: 2022-12-10
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_tree/binary_search_tree.java b/codes/java/chapter_tree/binary_search_tree.java
index 4a7c53db..4a7f3194 100644
--- a/codes/java/chapter_tree/binary_search_tree.java
+++ b/codes/java/chapter_tree/binary_search_tree.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: binary_search_tree.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_tree/binary_tree.java b/codes/java/chapter_tree/binary_tree.java
index 8f25a9a1..65a511e8 100644
--- a/codes/java/chapter_tree/binary_tree.java
+++ b/codes/java/chapter_tree/binary_tree.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: binary_tree.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_tree/binary_tree_bfs.java b/codes/java/chapter_tree/binary_tree_bfs.java
index 524274a6..c000eace 100644
--- a/codes/java/chapter_tree/binary_tree_bfs.java
+++ b/codes/java/chapter_tree/binary_tree_bfs.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: binary_tree_bfs.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/chapter_tree/binary_tree_dfs.java b/codes/java/chapter_tree/binary_tree_dfs.java
index fa866d96..1d3026df 100644
--- a/codes/java/chapter_tree/binary_tree_dfs.java
+++ b/codes/java/chapter_tree/binary_tree_dfs.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: binary_tree_dfs.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/include/ListNode.java b/codes/java/include/ListNode.java
index 14308feb..60590100 100755
--- a/codes/java/include/ListNode.java
+++ b/codes/java/include/ListNode.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: ListNode.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/include/PrintUtil.java b/codes/java/include/PrintUtil.java
index b8c97050..f21bc17c 100755
--- a/codes/java/include/PrintUtil.java
+++ b/codes/java/include/PrintUtil.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: PrintUtil.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/java/include/TreeNode.java b/codes/java/include/TreeNode.java
index 98b9f826..b9825266 100644
--- a/codes/java/include/TreeNode.java
+++ b/codes/java/include/TreeNode.java
@@ -1,4 +1,4 @@
-/*
+/**
  * File: TreeNode.java
  * Created Time: 2022-11-25
  * Author: Krahets (krahets@163.com)
diff --git a/codes/javascript/chapter_array_and_linkedlist/list.js b/codes/javascript/chapter_array_and_linkedlist/list.js
index 19318337..59391758 100644
--- a/codes/javascript/chapter_array_and_linkedlist/list.js
+++ b/codes/javascript/chapter_array_and_linkedlist/list.js
@@ -1,4 +1,4 @@
-/*
+/**
  * File: list.js
  * Created Time: 2022-12-12
  * Author: Justin (xiefahit@gmail.com)
diff --git a/codes/javascript/chapter_array_and_linkedlist/my_list.js b/codes/javascript/chapter_array_and_linkedlist/my_list.js
index a861b1f0..388bb1f3 100644
--- a/codes/javascript/chapter_array_and_linkedlist/my_list.js
+++ b/codes/javascript/chapter_array_and_linkedlist/my_list.js
@@ -1,4 +1,4 @@
-/*
+/**
  * File: my_list.js
  * Created Time: 2022-12-12
  * Author: Justin (xiefahit@gmail.com)
diff --git a/codes/javascript/chapter_hashing/array_hash_map.js b/codes/javascript/chapter_hashing/array_hash_map.js
index f5c77aa2..405d0f31 100644
--- a/codes/javascript/chapter_hashing/array_hash_map.js
+++ b/codes/javascript/chapter_hashing/array_hash_map.js
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array_hash_map.js
  * Created Time: 2022-12-26
  * Author: Justin (xiefahit@gmail.com)
diff --git a/codes/javascript/chapter_hashing/hash_map.js b/codes/javascript/chapter_hashing/hash_map.js
index 197fb7dd..9157b315 100644
--- a/codes/javascript/chapter_hashing/hash_map.js
+++ b/codes/javascript/chapter_hashing/hash_map.js
@@ -1,4 +1,4 @@
-/*
+/**
  * File: hash_map.js
  * Created Time: 2022-12-26
  * Author: Justin (xiefahit@gmail.com)
diff --git a/codes/swift/chapter_computational_complexity/leetcode_two_sum.swift b/codes/swift/chapter_computational_complexity/leetcode_two_sum.swift
index 6ed0e580..e82872d3 100644
--- a/codes/swift/chapter_computational_complexity/leetcode_two_sum.swift
+++ b/codes/swift/chapter_computational_complexity/leetcode_two_sum.swift
@@ -1,4 +1,4 @@
-/*
+/**
  * File: leetcode_two_sum.swift
  * Created Time: 2023-01-03
  * Author: nuomi1 (nuomi1@qq.com)
diff --git a/codes/swift/chapter_computational_complexity/space_complexity.swift b/codes/swift/chapter_computational_complexity/space_complexity.swift
index 4931597c..92a1187a 100644
--- a/codes/swift/chapter_computational_complexity/space_complexity.swift
+++ b/codes/swift/chapter_computational_complexity/space_complexity.swift
@@ -1,4 +1,4 @@
-/*
+/**
  * File: space_complexity.swift
  * Created Time: 2023-01-01
  * Author: nuomi1 (nuomi1@qq.com)
diff --git a/codes/swift/chapter_computational_complexity/time_complexity.swift b/codes/swift/chapter_computational_complexity/time_complexity.swift
index 322b4f09..44addb80 100644
--- a/codes/swift/chapter_computational_complexity/time_complexity.swift
+++ b/codes/swift/chapter_computational_complexity/time_complexity.swift
@@ -1,4 +1,4 @@
-/*
+/**
  * File: time_complexity.swift
  * Created Time: 2022-12-26
  * Author: nuomi1 (nuomi1@qq.com)
diff --git a/codes/swift/chapter_computational_complexity/worst_best_time_complexity.swift b/codes/swift/chapter_computational_complexity/worst_best_time_complexity.swift
index 4fa2cf2a..09d7de1f 100644
--- a/codes/swift/chapter_computational_complexity/worst_best_time_complexity.swift
+++ b/codes/swift/chapter_computational_complexity/worst_best_time_complexity.swift
@@ -1,4 +1,4 @@
-/*
+/**
  * File: worst_best_time_complexity.swift
  * Created Time: 2022-12-26
  * Author: nuomi1 (nuomi1@qq.com)
diff --git a/codes/swift/utils/ListNode.swift b/codes/swift/utils/ListNode.swift
index 796ee512..5fa3671e 100644
--- a/codes/swift/utils/ListNode.swift
+++ b/codes/swift/utils/ListNode.swift
@@ -1,4 +1,4 @@
-/*
+/**
  * File: ListNode.swift
  * Created Time: 2023-01-02
  * Author: nuomi1 (nuomi1@qq.com)
diff --git a/codes/swift/utils/PrintUtil.swift b/codes/swift/utils/PrintUtil.swift
index 3f3fc268..f2b54693 100644
--- a/codes/swift/utils/PrintUtil.swift
+++ b/codes/swift/utils/PrintUtil.swift
@@ -1,4 +1,4 @@
-/*
+/**
  * File: PrintUtil.swift
  * Created Time: 2023-01-02
  * Author: nuomi1 (nuomi1@qq.com)
diff --git a/codes/swift/utils/TreeNode.swift b/codes/swift/utils/TreeNode.swift
index b6ce3057..161cebd5 100644
--- a/codes/swift/utils/TreeNode.swift
+++ b/codes/swift/utils/TreeNode.swift
@@ -1,4 +1,4 @@
-/*
+/**
  * File: TreeNode.swift
  * Created Time: 2023-01-02
  * Author: nuomi1 (nuomi1@qq.com)
diff --git a/codes/typescript/chapter_array_and_linkedlist/array.ts b/codes/typescript/chapter_array_and_linkedlist/array.ts
index 237a0438..a85816b9 100644
--- a/codes/typescript/chapter_array_and_linkedlist/array.ts
+++ b/codes/typescript/chapter_array_and_linkedlist/array.ts
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array.ts
  * Created Time: 2022-12-04
  * Author: Justin (xiefahit@gmail.com)
diff --git a/codes/typescript/chapter_array_and_linkedlist/linked_list.ts b/codes/typescript/chapter_array_and_linkedlist/linked_list.ts
index 48432258..b5eb988a 100644
--- a/codes/typescript/chapter_array_and_linkedlist/linked_list.ts
+++ b/codes/typescript/chapter_array_and_linkedlist/linked_list.ts
@@ -1,4 +1,4 @@
-/*
+/**
  * File: linked_list.ts
  * Created Time: 2022-12-10
  * Author: Justin (xiefahit@gmail.com)
diff --git a/codes/typescript/chapter_array_and_linkedlist/list.ts b/codes/typescript/chapter_array_and_linkedlist/list.ts
index 8fca2bfa..e1d2d518 100644
--- a/codes/typescript/chapter_array_and_linkedlist/list.ts
+++ b/codes/typescript/chapter_array_and_linkedlist/list.ts
@@ -1,4 +1,4 @@
-/*
+/**
  * File: list.ts
  * Created Time: 2022-12-10
  * Author: Justin (xiefahit@gmail.com)
diff --git a/codes/typescript/chapter_array_and_linkedlist/my_list.ts b/codes/typescript/chapter_array_and_linkedlist/my_list.ts
index b2ce4684..e60075da 100644
--- a/codes/typescript/chapter_array_and_linkedlist/my_list.ts
+++ b/codes/typescript/chapter_array_and_linkedlist/my_list.ts
@@ -1,4 +1,4 @@
-/*
+/**
  * File: my_list.ts
  * Created Time: 2022-12-11
  * Author: Justin (xiefahit@gmail.com)
diff --git a/codes/typescript/chapter_computational_complexity/leetcode_two_sum.ts b/codes/typescript/chapter_computational_complexity/leetcode_two_sum.ts
index 8e3c4cd7..47c52d80 100644
--- a/codes/typescript/chapter_computational_complexity/leetcode_two_sum.ts
+++ b/codes/typescript/chapter_computational_complexity/leetcode_two_sum.ts
@@ -1,4 +1,4 @@
-/*
+/**
  * File: leetcode_two_sum.ts
  * Created Time: 2022-12-15
  * Author: gyt95 (gytkwan@gmail.com) 
diff --git a/codes/typescript/chapter_hashing/array_hash_map.ts b/codes/typescript/chapter_hashing/array_hash_map.ts
index 627205f7..027cdc8e 100644
--- a/codes/typescript/chapter_hashing/array_hash_map.ts
+++ b/codes/typescript/chapter_hashing/array_hash_map.ts
@@ -1,4 +1,4 @@
-/*
+/**
  * File: array_hash_map.ts
  * Created Time: 2022-12-20
  * Author: Daniel (better.sunjian@gmail.com)
diff --git a/codes/typescript/chapter_hashing/hash_map.ts b/codes/typescript/chapter_hashing/hash_map.ts
index 7e54cf5c..8d73da0c 100644
--- a/codes/typescript/chapter_hashing/hash_map.ts
+++ b/codes/typescript/chapter_hashing/hash_map.ts
@@ -1,4 +1,4 @@
-/*
+/**
  * File: hash_map.ts
  * Created Time: 2022-12-20
  * Author: Daniel (better.sunjian@gmail.com)
diff --git a/codes/typescript/module/ListNode.ts b/codes/typescript/module/ListNode.ts
index d6d60616..17fdbb95 100644
--- a/codes/typescript/module/ListNode.ts
+++ b/codes/typescript/module/ListNode.ts
@@ -1,4 +1,4 @@
-/*
+/**
  * File: ListNode.ts
  * Created Time: 2022-12-10
  * Author: Justin (xiefahit@gmail.com)
diff --git a/codes/typescript/module/PrintUtil.ts b/codes/typescript/module/PrintUtil.ts
index 9174be15..59f1af0e 100644
--- a/codes/typescript/module/PrintUtil.ts
+++ b/codes/typescript/module/PrintUtil.ts
@@ -1,4 +1,4 @@
-/*
+/**
  * File: PrintUtil.ts
  * Created Time: 2022-12-13
  * Author: Justin (xiefahit@gmail.com)
diff --git a/codes/typescript/module/TreeNode.ts b/codes/typescript/module/TreeNode.ts
index 0bc783aa..5a886763 100644
--- a/codes/typescript/module/TreeNode.ts
+++ b/codes/typescript/module/TreeNode.ts
@@ -1,4 +1,4 @@
-/*
+/**
  * File: TreeNode.ts
  * Created Time: 2022-12-13
  * Author: Justin (xiefahit@gmail.com)