[20250813] BOJ / G5 / 상범 빌딩 / 김수연

suyeun84/202508/13 BOJ G5 상범 빌딩.md

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+```java
+import java.util.*;
+import java.io.*;
+
+public class boj6593 {
+    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    static StringTokenizer st;
+    static void nextLine() throws Exception {st = new StringTokenizer(br.readLine());}
+    static int nextInt() {return Integer.parseInt(st.nextToken());}
+
+    static Pos start, end;
+    static int L, R, C, answer;
+    static char[][][] map;
+    static int[][] dir = {{1,0,0}, {-1,0,0}, {0,1,0}, {0,-1,0}, {0,0,1}, {0,0,-1}};
+    public static void main(String[] args) throws Exception {
+        while (true) {
+            nextLine();
+            answer = Integer.MAX_VALUE;
+            L = nextInt();
+            R = nextInt();
+            C = nextInt();
+            if (L == 0 && R == 0 && C == 0) return;
+            map = new char[L][R][C];
+            for (int l = 0; l < L; l++) {
+                for (int r = 0; r < R; r++) {
+                    String str = br.readLine();
+                    for (int c = 0; c < C; c++) {
+                        map[l][r][c] = str.charAt(c);
+                        if (map[l][r][c] == 'S') start = new Pos(l, r, c, 0);
+                        else if (map[l][r][c] == 'E') end = new Pos(l, r, c, 0);
+                    }
+                }
+                br.readLine();
+            }
+            bfs();
+            if (answer != Integer.MAX_VALUE) System.out.println("Escaped in "+answer+" minute(s).");
+            else System.out.println("Trapped!");
+        }
+    }
+
+    static void bfs() {
+        boolean[][][] visited = new boolean[L][R][C];
+        Queue<Pos> q = new LinkedList<>();
+        q.add(start);
+        while (!q.isEmpty()) {
+            Pos cur = q.poll();
+            if ((cur.h == end.h) && (cur.r == end.r) && (cur.c == end.c)) {
+                answer = Math.min(answer, cur.cnt);
+                continue;
+            }
+            for (int[] d : dir) {
+                int nh = cur.h + d[0];
+                int nr = cur.r + d[1];
+                int nc = cur.c + d[2];
+                if (nh < 0 || nh >= L || nr < 0 || nr >= R || nc < 0 || nc >= C) continue;
+                if (visited[nh][nr][nc] || map[nh][nr][nc] == '#') continue;
+                q.add(new Pos(nh, nr, nc, cur.cnt+1));
+                visited[nh][nr][nc] = true;
+            }
+        }
+    }
+
+    static class Pos {
+        int h, r, c, cnt;
+        public Pos(int h, int r, int c, int cnt) {
+            this.h = h;
+            this.r = r;
+            this.c = c;
+            this.cnt = cnt;
+        }
+    }
+}
+```