Fix the initial edges in graph_adjacency_matrix

codes/go/chapter_graph/graph_adjacency_matrix_test.go

@@ -13,7 +13,7 @@ func TestGraphAdjMat(t *testing.T) {
 	/* 初始化无向图 */
 	// 请注意，edges 元素代表顶点索引，即对应 vertices 元素索引
 	vertices := []int{1, 3, 2, 5, 4}
-	edges := [][]int{{0, 1}, {0, 2}, {1, 2}, {2, 3}, {0, 3}, {2, 4}, {3, 4}}
+	edges := [][]int{{0, 1}, {1, 2}, {2, 3}, {0, 3}, {2, 4}, {3, 4}}
 	graph := newGraphAdjMat(vertices, edges)
 	fmt.Println("初始化后，图为:")
 	graph.print()

codes/java/chapter_graph/graph_adjacency_matrix.java

@@ -100,7 +100,7 @@ public class graph_adjacency_matrix {
         /* 初始化无向图 */
         // 请注意，edges 元素代表顶点索引，即对应 vertices 元素索引
         int[] vertices = { 1, 3, 2, 5, 4 };
-        int[][] edges = { { 0, 1 }, { 0, 2 }, { 1, 2 }, { 2, 3 }, { 0, 3 }, { 2, 4 }, { 3, 4 } };
+        int[][] edges = { { 0, 1 }, { 1, 2 }, { 2, 3 }, { 0, 3 }, { 2, 4 }, { 3, 4 } };
         GraphAdjMat graph = new GraphAdjMat(vertices, edges);
         System.out.println("\n初始化后，图为");
         graph.print();

codes/swift/chapter_graph/graph_adjacency_matrix.swift

@@ -99,7 +99,7 @@ enum GraphAdjacencyMatrix {
         /* 初始化无向图 */
         // 请注意，edges 元素代表顶点索引，即对应 vertices 元素索引
         let vertices = [1, 3, 2, 5, 4]
-        let edges = [[0, 1], [0, 2], [1, 2], [2, 3], [0, 3], [2, 4], [3, 4]]
+        let edges = [[0, 1], [1, 2], [2, 3], [0, 3], [2, 4], [3, 4]]
         let graph = GraphAdjMat(vertices: vertices, edges: edges)
         print("\n初始化后，图为")
         graph.print()