在本地ECLIPSE里面运行好好的，怎么SUBMIT以后，就COMPILE ERROR了？
谢谢各位大虾指点迷津。。。。

//1037: Decorative Fence.
import java.util.*;

class Fence
{
	private int n;
	//M[x][n]: the number of fences which have plank 1...n, start with x, have a length of n and the next plank is larger than x.
	private long[][] M;
	private long[][] W;
	private boolean[] flag;
	private boolean print;
	
	Fence(int N)
	{
		n = N;
		M = new long[n+1][n+1];
		W = new long[n+1][n+1];
		flag = new boolean[n+1];
		for(int i=1; i<=n; i++)
			for(int j=1; j <= n; j++)
			{
				M[i][j] = 0;
				W[i][j] = 0;
		    }
		for(int i=1; i<=n; i++)
			flag[i] = false;
		print = false;
	}
	
	private void setupMatrix()
	{
		
	    M[1][1] = 1; W[1][1] = 1;
		W[1][2] = 0; M[1][2] = 1;
	    W[2][2] = 1; M[2][2] = 0;
	    
		for(int j=3; j <= n; j++)
			for(int i=1; i <= n; i++)
			{
				for(int k=i; k<j; k++)
					M[i][j] += W[k][j-1];
				for(int k=1; k<i; k++)
					W[i][j] += M[k][j-1];
			}
		
				
	}
	
	
	private void findplank(int k, int m){
	    for (int i = 1; i <= m; i++) 
	     if (flag[i] && i <= k){
	        k++; m++;
	     }
	    flag[k] = true;
	    if (print) System.out.print(" "+k);
	    else{
	        System.out.print(k);
	        print = true;
	    }
	}

	 private void produceResults(long c){
	        int k = 1;
	        print = false;
	        boolean direct = true, first = true;
	        while(n!=0){
	            if (direct)
	                if (c > W[k][n]){
	                    c -= W[k++][n];
	                    if (first) {direct = false; k--;}
	                }else{
	                    findplank(k, n--);
	                    first = false;
	                    direct = false;
	                    k = 1;
	                }
	            else
	                if (c > M[k][n]){
	                    c -= M[k++][n];
	                    if (first) direct = true;
	                }else{
	                    findplank(k, n--);
	                    first = false;
	                    direct = true;
	                }
	        }
	        System.out.println();
	 }
	
	public static void main(String[] args)
	{
		Scanner sc=new Scanner(System.in);
	    int t, N;
	    long C;
	    t=sc.nextInt();;
	    while((t--)!=0){
	        N=sc.nextInt();
	        C=sc.nextLong();
	        Fence m = new Fence(N);
	        m.setupMatrix();
	        m.produceResults(C);	
	    }       	
	}
}