문제는 다음과 같습니다.

https://www.acmicpc.net/problem/11403

　
import java.util.Scanner;

public class Test11403 {
	static int N;
	static int[][] adMatrix;
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		N = sc.nextInt();
		adMatrix = new int[N+1][N+1];
		for(int i=1; i<=N; i++) {
			for(int j=1; j<=N; j++) {
				adMatrix[i][j] = sc.nextInt();
			}
		}
		//알고리즘 풀이
		for(int i=1; i<=N; i++) {
			int[] visit = new int[N+1];
			DFS(i, visit, false);
			for(int j=1; j<=N; j++) {
				System.out.print(visit[j]+" ");
			}System.out.println();
		}
	}
	static void DFS(int x, int[] visit, Boolean isFirst) {
		if(isFirst) { 
			visit[x] = 1;
		}
		for(int i=1; i<=N; i++) {
			if(adMatrix[x][i]==1 && visit[i]==0) {
				DFS(i, visit, true);				
			}
			
		}
	}
}
　

　
import java.util.Scanner;

public class Test11403{
	static int N;
	static int[][] adMatrix;
	static void DFS(int x, int[] visit, boolean isFirst) {
		if(!isFirst) { //isFirst가 false일 경우
			visit[x]=1;
		}
		for(int i=1; i<=N; i++) {
			if(adMatrix[x][i]==1 && visit[i]==0) {
				DFS(i, visit, false);
			}
		}
	}

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		N = sc.nextInt();
		adMatrix = new int[N+1][N+1];
		//행렬 입력받기
		for(int i=1; i<=N; i++) {
			for(int j=1; j<=N; j++) {
				adMatrix[i][j] = sc.nextInt();
			}
		}
		//알고리즘 풀이
		for(int i=1; i<=N; i++) {
			int[] visit = new int[N+1];
			DFS(i, visit, true);
			for(int j=1; j<=N; j++) {
				System.out.print(visit[j]+" ");
			}System.out.println();
		}
		
	}
	
}
　

　
import java.util.Scanner;

public class Test11403{
	static int N;
	static int[][] adMatrix;
	static int[][] result;
	
	static void DFS(int x, int[] visit, boolean isFirst) {
		if(!isFirst) { //isFirst가 false일 경우
			visit[x]=1;
		}
		for(int i=1; i<=N; i++) {
			if(adMatrix[x][i]==1 && visit[i]==0) {
				DFS(i, visit, false);
			}
		}
	}

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		N = sc.nextInt();
		adMatrix = new int[N+1][N+1];
		result = new int[N+1][N+1];
		//행렬 입력받기
		for(int i=1; i<=N; i++) {
			for(int j=1; j<=N; j++) {
				adMatrix[i][j] = sc.nextInt();
			}
		}
		//알고리즘 풀이
		for(int i=1; i<=N; i++) {
			int[] visit = new int[N+1];
			DFS(i, visit, true);
			result[i] = visit;
		}
		//출력하기
		for(int i=1; i<result.length; i++) {
			for(int j=1; j<result.length; j++) {
				System.out.print(result[i][j]+" ");
			}
			if(i != result.length-1) {
				System.out.println();
			}
		}
	}
	
}
　

결과입니다.