백준 1347. 미로 만들기 :: 돼지개발자

출저 : https://www.acmicpc.net/problem/1347

"시뮬레이션"

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
 
class Main {
 
    static int N;
    static char[][] map = new char[250][250];
    static int maxX;
    static int maxY;
    static int minX;
    static int minY;
    static int sx;
    static int sy;
    static int d = 2;    // S
    static int[] dx = {-1,0,1,0};
    static int[] dy = {0,1,0,-1};
    static StringBuffer sb = new StringBuffer();
    
    public static void main (String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        N = Integer.parseInt(br.readLine());
        
        char[] cmd = br.readLine().toCharArray();
        
        for (int i = 0; i < 250; i++) {
            Arrays.fill(map[i], '#');
        }
        
        maxX = maxY = minX = minY = sx = sy = 49;
        map[sx][sy] = '.';
        
        for (int i = 0; i < cmd.length; i++) {
            char c = cmd[i];
            if(c == 'F') {
                sx += dx[d];
                sy += dy[d];
                map[sx][sy] = '.';
                
                maxX = Math.max(maxX, sx);
                minX = Math.min(minX, sx);
                maxY = Math.max(maxY, sy);
                minY = Math.min(minY, sy);
            }
            else {
                d = turn(c,d);
            }
        }
        
        for (int i = minX; i <= maxX; i++) {
            for (int j = minY; j <= maxY; j++) {
                sb.append(map[i][j]);
            }
            sb.append("\n");
        }
        System.out.print(sb.toString());
    }
    
    static int turn(char cmd, int d) {
        if(cmd == 'R') return d + 1 == 4 ? 0 : d + 1;
        return d - 1 == -1 ? 3 : d - 1;
    }
}