結果
| 問題 |
No.424 立体迷路
|
| コンテスト | |
| ユーザー |
neko_the_shadow
|
| 提出日時 | 2019-05-17 13:41:14 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,485 bytes |
| コンパイル時間 | 1,992 ms |
| コンパイル使用メモリ | 79,256 KB |
| 実行使用メモリ | 56,248 KB |
| 最終ジャッジ日時 | 2024-09-17 05:53:39 |
| 合計ジャッジ時間 | 6,338 ms |
|
ジャッジサーバーID (参考情報) |
judge6 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | WA * 5 |
| other | WA * 21 |
ソースコード
package _0424;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner stdin = new Scanner(System.in);
int h = stdin.nextInt();
int w = stdin.nextInt();
int sx = stdin.nextInt() - 1;
int sy = stdin.nextInt() - 1;
int gx = stdin.nextInt() - 1;
int gy = stdin.nextInt() - 1;
int[][] b = new int[h][w];
for (int x = 0; x < h; x++) {
String s = stdin.next();
for (int y = 0; y < w; y++) {
b[x][y] = (int)(s.charAt(y) - '0');
}
}
boolean[][] visited = new boolean[h][w];
visited[sx][sy] = true;
Tuple[] diffs = new Tuple[] {new Tuple(0, 2), new Tuple(0, -2), new Tuple(2, 0), new Tuple(-2, 0)};
ArrayDeque<Tuple> stack = new ArrayDeque<>();
stack.add(new Tuple(sx, sy));
while (!stack.isEmpty()) {
Tuple tuple = stack.pop();
int x1 = tuple.x;
int y1 = tuple.y;
for (Tuple diff : diffs) {
int x2 = x1 + diff.x / 2;
int y2 = y1 + diff.y / 2;
int x3 = x1 + diff.x;
int y3 = y1 + diff.y;
if (0 <= x2 && x2 < h
&& 0 <= y2 && y2 < w
&& 0 <= x3 && x3 < h
&& 0 <= y3 && y3 < w
&& b[x1][y1] == b[x3][y3]
&& b[x2][y2] < b[x1][y1]
&& !visited[x3][y3]) {
stack.push(new Tuple(x3, y3));
visited[x3][y3] = true;
}
if (0 <= x2 && x2 < h
&& 0 <= y2 && y2 < w
&& Math.abs(b[x1][y1] - b[x2][y2]) <= 1
&& !visited[x2][y2]) {
stack.push(new Tuple(x2, y2));
visited[x2][y2] = true;
}
}
}
System.out.println(Arrays.deepToString(visited));
System.out.println(visited[gx][gy] ? "YES" : "NO");
}
private static class Tuple {
private int x;
private int y;
public Tuple(int x, int y) {
super();
this.x = x;
this.y = y;
}
}
}
neko_the_shadow