如何在邻接矩阵的广度优先搜索中跟踪每个顶点的深度? (Java)

How can I track the depth of each vertex in a breadth first search of an adjacency matrix? (Java)

我试图在邻接矩阵的广度优先搜索期间跟踪和打印每个节点的深度。

public class steptwo {
static String matrixFileName = "matrix.txt";

static int[][] matrix;
static int dimensions = 0;

public static void main(String[] args) {

    matrix = analyzeFile();
    bft();

}

static void bft(){

    Scanner input = new Scanner(System.in);
    System.out.println("Please enter the source vertex, 0 to " + (matrix.length-1) + ".");

    int source = input.nextInt()+1;


    //Testing for valid vertex 
    while (source > matrix.length) {
        System.out.println("Invalid vertex, please enter another from 0 to " + (matrix.length-1) + ".");
        source = input.nextInt()+1;
    }
    input.close();

    boolean[] visited = new boolean[matrix.length];

    visited[source - 1] = true;
    Queue<Integer> queue = new LinkedList<>();
    queue.add(source);
    int height = 0;
    System.out.println("The breadth first order is: ");

    while(!queue.isEmpty()){
        System.out.print(queue.peek()-1 + " ---> H");
        int x = queue.poll();
        int i;

        for(i = 0 ; i < matrix.length; i++){
            if(matrix[x-1][i] == 1 && visited[i] == false){
                queue.add(i+1);
                visited[i] = true;
                height++;
            }

        }
        System.out.print(height + "\n");
    }
}

我正在寻找格式如下的输出

Please enter the source vertex, 0 to 7.
0
The breadth first order is: 
0 ---> H5
1 ---> H6
2 ---> H6
3 ---> H6
4 ---> H7
5 ---> H7
6 ---> H7
7 ---> H7

我确定我只是错过了一些愚蠢的东西,但我不知所措。我需要跟踪访问的每个顶点的深度。邻接矩阵已成功从 .txt 文件中读取,并且在我的其他方法中工作正常。我可以简单,也可以不简单

欢迎任何意见,谢谢。

如果需要更多信息,请告诉我。

用 N 个整数创建数组 "depth",其中 N 是节点数,并将其传递给 BFS
在 BFS 中,假设您将顶点 "u" 出列,您会发现它的邻居,并且对于 "u" 的每个新发现的邻居 "v",您设置 depth[v]=depth[u] + 1

if(matrix[x-1][i] == 1 && visited[i] == false){
                queue.add(i+1);
                visited[i] = true;
                depth[i] = depth[x]+1;
            }