java背包问题，动态方法，如果拾取=1，如果未拾取=0，则打印出项目

Question

我在打印选中的元素=1和未选中的元素=0时遇到问题 输入文件： input file pic ：

输出应为：

0

一,

0

一,

到目前为止，代码工作正常，最大值正确

我尝试了多种方法来打印picked=1和not picked=0项，但根本不适用于我

代码：

public class Main {

static int max(int a, int b) { return (a > b)? a : b; }
// Returns the maximum value that can be put in a knapsack of capacity W
static int knapSack(int W, int wt[], int val[], int n)
{

    int i, w;
    int K[][] = new int[n+1][W+1];

    // Build table K[][] in bottom up manner
    for (i = 0; i <= n; i++)
    {
        for (w = 0; w <= W; w++)
        {
            if (i==0 || w==0)

                K[i][w] = 0;

            else if (wt[i-1] <= w)

                K[i][w] = max(val[i-1] + K[i-1][w-wt[i-1]], K[i-1][w]);
            else
                K[i][w] = K[i-1][w];
        }
    }
    return K[n][W];
}

public static void main(String[] args) throws IOException {
    Scanner input = new Scanner(Paths.get("C:\\Users\\shdgh\\Desktop\\in.txt"));
    int  n= input.nextInt();
    int  w= input.nextInt();
    int[] wt = new int[n];
    int[]  val = new int [n];
   // int[][] maxVal = new int[n + 1][w + 1];//v[i][j] denotes the maximum value of the first I items that can be loaded into the backpack with a capacity of j
    //int[][] mark = new int[n + 1][w + 1];//Record  items are put into the backpack=1 and are not picked =0
    int count=0 ;
    while(count < n) {
        val[count] = input.nextInt();
        wt[count] = input.nextInt();
        count++;}
    int result =   knapSack(w, wt, val, n);
    System.out.println("the maximum value : "+result);


}