Lv.1 [1차] 비밀지도

https://programmers.co.kr/learn/courses/30/lessons/17681

코딩테스트 연습 - [1차] 비밀지도

 

import java.util.*;
class Solution {
    public String[] solution(int n, int[] arr1, int[] arr2) {
        int[][] arrB1 = new int[n][n];
        int[][] arrB2 = new int[n][n];
        
        for(int i = 0; i < n; i++){
            int q = arr1[i];
            for(int j = 0; j < n; j++){
                arrB1[i][n-j-1] = q % 2;
                q = q / 2;
            }
        }
        
        for(int i = 0; i < n; i++){
            int q = arr2[i];
            for(int j = 0; j < n; j++){
                arrB2[i][n-j-1] = q % 2;
                q = q / 2;
            }
        }
        
        String[][] arrAn = new String[n][n];
        for(int i = 0; i < n; i++){
            for(int j = 0; j < n; j++){
                if(arrB1[i][j] == 0 && arrB2[i][j] == 0){
                    arrAn[i][j] = " ";
                }else{
                    arrAn[i][j] = "#";
                }
            }
        }
        
        String[] answer = new String[n];
        for(int i = 0; i < n; i++){
            answer[i] = "";
            for(int j = 0; j < n; j++){
                answer[i] += arrAn[i][j]; 
            }
        }
        
        return answer;
    }
}

성공