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_graph/graph_adjacency_matrix.rs

@@ -72,7 +72,7 @@ impl GraphAdjMat {
         if i >= self.size() || j >= self.size() || i == j {
             panic!("index error")
         }
-        // 在无向图中，邻接矩阵沿主对角线对称，即满足 (i, j) == (j, i)
+        // 在无向图中，邻接矩阵关于主对角线对称，即满足 (i, j) == (j, i)
         self.adj_mat[i][j] = 1;
         self.adj_mat[j][i] = 1;
     }