|
|
|
@ -11,7 +11,7 @@ const { Vertex } = require('../include/Vertex');
|
|
|
|
|
|
|
|
|
|
/* 广度优先遍历 BFS */
|
|
|
|
|
// 使用邻接表来表示图,以便获取指定顶点的所有邻接顶点
|
|
|
|
|
function graphBfs(graph, startVet) {
|
|
|
|
|
function graphBFS(graph, startVet) {
|
|
|
|
|
// 顶点遍历序列
|
|
|
|
|
const res = [];
|
|
|
|
|
// 哈希表,用于记录已被访问过的顶点
|
|
|
|
@ -19,7 +19,6 @@ function graphBfs(graph, startVet) {
|
|
|
|
|
visited.add(startVet);
|
|
|
|
|
// 队列用于实现 BFS
|
|
|
|
|
const que = [startVet];
|
|
|
|
|
|
|
|
|
|
// 以顶点 vet 为起点,循环直至访问完所有顶点
|
|
|
|
|
while (que.length) {
|
|
|
|
|
const vet = que.shift(); // 队首顶点出队
|
|
|
|
@ -42,13 +41,13 @@ function graphBfs(graph, startVet) {
|
|
|
|
|
/* 初始化无向图 */
|
|
|
|
|
const v = Vertex.valsToVets([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
|
|
|
|
|
const edges = [[v[0], v[1]], [v[0], v[3]], [v[1], v[2]], [v[1], v[4]],
|
|
|
|
|
[v[2], v[5]], [v[3], v[4]], [v[3], v[6]], [v[4], v[5]],
|
|
|
|
|
[v[4], v[7]], [v[5], v[8]], [v[6], v[7]], [v[7], v[8]]];
|
|
|
|
|
[v[2], v[5]], [v[3], v[4]], [v[3], v[6]], [v[4], v[5]],
|
|
|
|
|
[v[4], v[7]], [v[5], v[8]], [v[6], v[7]], [v[7], v[8]]];
|
|
|
|
|
const graph = new GraphAdjList(edges);
|
|
|
|
|
console.log("\n初始化后,图为");
|
|
|
|
|
graph.print();
|
|
|
|
|
|
|
|
|
|
/* 广度优先遍历 BFS */
|
|
|
|
|
const res = graphBfs(graph, v[0]);
|
|
|
|
|
const res = graphBFS(graph, v[0]);
|
|
|
|
|
console.log("\n广度优先遍历(BFS)顶点序列为");
|
|
|
|
|
console.log(Vertex.vetsToVals(res));
|
|
|
|
|