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/javascript/chapter_computational_complexity/iteration.js

@@ -30,7 +30,7 @@ function whileLoop(n) {
 function whileLoopII(n) {
     let res = 0;
     let 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