大佬来看看，哪里出问题了？

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

int i = 0;

boolean b = false;

Scanner sc = new Scanner(System.in);

int n = sc.nextInt();

int m = sc.nextInt();

int k = sc.nextInt();

int t = 0;

int j = 0;

int ww=0;

String[] s = new String[2 * m];

Scanner sc1 = new Scanner(System.in);

String ey = sc1.nextLine();

String[] a = ey.split(" ");

for(i=0;i<2*m;i++)

{

s[i]=sc1.nextLine();

}

if (n >= 1 && n <= 50 && m >= 1 && m <= 50 && k >= 1 && k <= 50) {

for (i = 1; i < 2 * m; i = i + 2) {

for (j = 0; j < n; j++) {

b = s[i].contains(a[j]);

if (b == true) {

b = false;

t = t + 1;

}

}

if(t>=k)

{

System.out.println(s[i-1]);

ww=1;

}

}

}

if(ww==0){

System.out.println();

}

}

}