結果
問題 | No.2657 Falling Block Game |
ユーザー |
![]() |
提出日時 | 2024-03-01 23:00:29 |
言語 | Java (openjdk 23) |
結果 |
TLE
|
実行時間 | - |
コード長 | 2,697 bytes |
コンパイル時間 | 2,524 ms |
コンパイル使用メモリ | 86,856 KB |
実行使用メモリ | 119,568 KB |
最終ジャッジ日時 | 2024-09-29 14:47:32 |
合計ジャッジ時間 | 9,517 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 3 TLE * 1 -- * 33 |
ソースコード
import java.io.PrintWriter;import java.util.ArrayList;import java.util.Arrays;import java.util.List;import java.util.PriorityQueue;import java.util.Scanner;import java.util.Set;import java.util.TreeSet;public class Main {public static void main(String[] args) throws Exception {Scanner sc = new Scanner(System.in);int h = sc.nextInt();int w = sc.nextInt();char[][] s = new char[h][w];for (int i = 0; i < h; i++) {s[i] = sc.next().toCharArray();}sc.close();int inf = 100000000;int[][] d = new int[h][w];for (int i = 0; i < h; i++) {Arrays.fill(d[i], inf);}List<TreeSet<Integer>> list = new ArrayList<>(h - 1);for (int i = 0; i < h - 1; i++) {TreeSet<Integer> set = new TreeSet<>();for (int j = 0; j < w; j++) {set.add(j);}list.add(set);}PriorityQueue<Obj> que = new PriorityQueue<>((o1, o2) -> o1.d - o2.d);int h1 = h - 1;for (int j = 0; j < w; j++) {if (s[h1][j] == '.') {d[h1][j] = 0;que.add(new Obj(h1, j, d[h1][j]));}}List<Integer> remList = new ArrayList<>();while (!que.isEmpty()) {Obj o = que.poll();if (d[o.i][o.j] < o.d) {continue;}if (o.i > 0 && s[o.i - 1][o.j] == '.') {int ni = o.i - 1;int end = Math.min(o.j + o.d, w - 1);TreeSet<Integer> set = list.get(ni);Set<Integer> ss = set.subSet(o.j, true, end, true);for (int nj : ss) {if (s[ni][nj] == '#') {break;}int alt = o.d;if (d[ni][nj] > alt) {d[ni][nj] = alt;que.add(new Obj(ni, nj, alt));}remList.add(nj);}set.removeAll(remList);remList.clear();end = Math.max(o.j - o.d, 0);ss = list.get(ni).subSet(end, true, o.j, true).descendingSet();for (int nj : ss) {if (s[ni][nj] == '#') {break;}int alt = o.d;if (d[ni][nj] > alt) {d[ni][nj] = alt;que.add(new Obj(ni, nj, alt));}remList.add(nj);}set.removeAll(remList);remList.clear();}int ni = o.i;if (o.j > 0) {int nj = o.j - 1;if (s[ni][nj] == '.') {int alt = o.d + 1;if (d[ni][nj] > alt) {d[ni][nj] = alt;que.add(new Obj(ni, nj, alt));}}}if (o.j < w - 1) {int nj = o.j + 1;if (s[ni][nj] == '.') {int alt = o.d + 1;if (d[ni][nj] > alt) {d[ni][nj] = alt;que.add(new Obj(ni, nj, alt));}}}}PrintWriter pw = new PrintWriter(System.out);for (int j = 0; j < w; j++) {pw.println(d[0][j]);}pw.flush();}static class Obj {int i, j, d;public Obj(int i, int j, int d) {this.i = i;this.j = j;this.d = d;}}}