feat: Revised the book (#978)

* Sync recent changes to the revised Word.

* Revised the preface chapter

* Revised the introduction chapter

* Revised the computation complexity chapter

* Revised the chapter data structure

* Revised the chapter array and linked list

* Revised the chapter stack and queue

* Revised the chapter hashing

* Revised the chapter tree

* Revised the chapter heap

* Revised the chapter graph

* Revised the chapter searching

* Reivised the sorting chapter

* Revised the divide and conquer chapter

* Revised the chapter backtacking

* Revised the DP chapter

* Revised the greedy chapter

* Revised the appendix chapter

* Revised the preface chapter doubly

* Revised the figures

codes/python/chapter_computational_complexity/iteration.py

@@ -29,7 +29,7 @@ def while_loop_ii(n: int) -> int:
     """while 循环（两次更新）"""
     res = 0
     i = 1  # 初始化条件变量
-    # 循环求和 1, 4, ...
+    # 循环求和 1, 4, 10, ...
     while i <= n:
         res += i
         # 更新条件变量