結果
問題 |
No.3199 Key-Door Grid
|
ユーザー |
|
提出日時 | 2025-07-11 21:56:11 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 1,079 ms / 3,000 ms |
コード長 | 3,595 bytes |
コンパイル時間 | 5,633 ms |
コンパイル使用メモリ | 82,740 KB |
実行使用メモリ | 70,440 KB |
最終ジャッジ日時 | 2025-07-11 21:56:38 |
合計ジャッジ時間 | 21,233 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 37 |
ソースコード
import java.io.*; import java.util.PriorityQueue; import java.util.StringTokenizer; public class Main { public static void main(String[] args) { int m = sc.nextInt(), n = sc.nextInt(), M = sc.nextInt(); char[][] s = new char[m][n]; for (int i = 0; i < m; i++) { s[i] = sc.next().toCharArray(); } int sx = -1, sy = -1; int[][] dir = {{-1, 0}, {0, 1}, {1, 0}, {0, -1}}; PriorityQueue<int[]> p = new PriorityQueue<>((o1, o2) -> o1[2] - o2[2]);//x y dis state for (int i = 0; i < m; i++) { for (int j = 0; j < n; j++) { if (s[i][j] == 'S') { sx = i; sy = j; p.offer(new int[]{sx, sy, 0, 0}); } } } int[][][] dis = new int[m][n][12]; for (int i = 0; i < m; i++) { for (int j = 0; j < n; j++) { for (int k = 0; k < 12; k++) { dis[i][j][k] = 1 << 30; } } } dis[sx][sy][0] = 0; int ans = -1; o: while (!p.isEmpty()) { int[] t = p.poll(); int x = t[0], y = t[1], d = t[2], state = t[3]; for (int[] dd : dir) { int xx = x + dd[0], yy = y + dd[1]; if (xx < 0 || xx >= m || yy < 0 || yy >= n) continue; if (s[xx][yy] == '#') continue; if (s[xx][yy] == 'G') { ans = d + 1; break o; } if (s[xx][yy] == '.' || s[xx][yy] == 'S') { if (dis[xx][yy][state] > d + 1) { dis[xx][yy][state] = d + 1; p.offer(new int[]{xx, yy, d + 1, state}); } } if (s[xx][yy] > '0' && s[xx][yy] <= '9') { int digit = s[xx][yy] - '0'; if (dis[xx][yy][digit] > d + 1) { dis[xx][yy][digit] = d + 1; p.offer(new int[]{xx, yy, d + 1, digit}); } } if (s[xx][yy] >= 'a' && s[xx][yy] <= 'i') { int idx = s[xx][yy] - 'a' + 1; if (state == idx) { if (dis[xx][yy][state] > d + 1) { dis[xx][yy][state] = d + 1; p.offer(new int[]{xx, yy, d + 1, state}); } } } } } out.println(ans); out.close(); } static Kattio sc = new Kattio(); static PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out))); static class Kattio { static BufferedReader r; static StringTokenizer st; public Kattio() { r = new BufferedReader(new InputStreamReader(System.in)); } public String next() { try { while (st == null || !st.hasMoreTokens()) { st = new StringTokenizer(r.readLine()); } return st.nextToken(); } catch (Exception e) { return null; } } public int nextInt() { return Integer.parseInt(next()); } public long nextLong() { return Long.parseLong(next()); } public double nextDouble() { return Double.parseDouble(next()); } } }