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/rust/chapter_array_and_linkedlist/array.rs

@@ -35,11 +35,11 @@ fn insert(nums: &mut Vec<i32>, num: i32, index: usize) {
     for i in (index + 1..nums.len()).rev() {
         nums[i] = nums[i - 1];
     }
-    // 将 num 赋给 index 处元素
+    // 将 num 赋给 index 处的元素
     nums[index] = num;
 }
 
-/* 删除索引 index 处元素 */
+/* 删除索引 index 处的元素 */
 fn remove(nums: &mut Vec<i32>, index: usize) {
     // 把索引 index 之后的所有元素向前移动一位
     for i in index..nums.len() - 1 {