Submission #420572


Source Code Expand

import java.awt.Point;
import java.util.*;

public class Main
{
    private final static Main main = new Main();
    private final int[] dx = {0, 0, 1, -1};
    private final int[] dy = {1, -1, 0, 0};

    public static void main(String[] args)
    {
        main.solve();
    }

    private void solve()
    {
        Scanner sc = new Scanner(System.in);
        int h = sc.nextInt();
        int w = sc.nextInt();
        sc.nextLine();
        boolean[][] map = new boolean[h][w];
        int sx = 0, sy = 0, gx = 0, gy = 0;
        for(int i=0; i<h; ++i)
        {
            String s = sc.nextLine();
            for(int j=0; j<w; ++j)
            {
                map[i][j] = s.charAt(j) != '#';
                if(s.charAt(j) == 'g')
                {
                    gx = j;
                    gy = i;
                }
                if(s.charAt(j) == 's')
                {
                    sx = j;
                    sy = i;
                }
            }
        }
        System.out.println(dfs(h, w, map, new boolean[h][w], new Point(sx, sy), new Point(gx, gy)) ? "Yes" : "No");
    }

    private boolean dfs(int h, int w, boolean[][] map, boolean[][] visit, Point s, Point g)
    {
        if(s.x < 0 || w <= s.x || s.y < 0 || h <= s.y || !map[s.y][s.x] || visit[s.y][s.x])
        {
            return false;
        }
        if(s.x == g.x && s.y == g.y)
        {
            return true;
        }
        visit[s.y][s.x] = true;
        for(int i=0; i<4; ++i)
        {
            int x = s.x + dx[i];
            int y = s.y + dy[i];
            if(dfs(h, w, map, visit, new Point(x, y), g))
            {
                return true;
            }
        }
        return false;
    }
}

Submission Info

Submission Time
Task A - 深さ優先探索
User poxoq
Language Java (OpenJDK 1.7.0)
Score 100
Code Size 1791 Byte
Status AC
Exec Time 539 ms
Memory 46520 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 100 / 100
Status
AC × 5
AC × 83
Set Name Test Cases
Sample 00_sample_01.txt, 00_sample_02.txt, 00_sample_03.txt, 00_sample_04.txt, 00_sample_05.txt
All 00_min_01.txt, 00_min_02.txt, 00_min_03.txt, 00_min_04.txt, 00_min_05.txt, 00_min_06.txt, 00_min_07.txt, 00_min_08.txt, 00_sample_01.txt, 00_sample_02.txt, 00_sample_03.txt, 00_sample_04.txt, 00_sample_05.txt, 01_rnd_00.txt, 01_rnd_01.txt, 01_rnd_02.txt, 01_rnd_03.txt, 01_rnd_04.txt, 01_rnd_05.txt, 01_rnd_06.txt, 01_rnd_07.txt, 01_rnd_08.txt, 01_rnd_09.txt, 01_rnd_10.txt, 01_rnd_11.txt, 01_rnd_12.txt, 01_rnd_13.txt, 01_rnd_14.txt, 01_rnd_15.txt, 01_rnd_16.txt, 01_rnd_17.txt, 01_rnd_18.txt, 01_rnd_19.txt, 02_rndhard_00.txt, 02_rndhard_01.txt, 02_rndhard_02.txt, 02_rndhard_03.txt, 02_rndhard_04.txt, 02_rndhard_05.txt, 02_rndhard_06.txt, 02_rndhard_07.txt, 02_rndhard_08.txt, 02_rndhard_09.txt, 02_rndhard_10.txt, 02_rndhard_11.txt, 02_rndhard_12.txt, 02_rndhard_13.txt, 02_rndhard_14.txt, 02_rndhard_15.txt, 02_rndhard_16.txt, 02_rndhard_17.txt, 02_rndhard_18.txt, 02_rndhard_19.txt, 02_rndhard_20.txt, 02_rndhard_21.txt, 02_rndhard_22.txt, 02_rndhard_23.txt, 02_rndhard_24.txt, 02_rndhard_25.txt, 02_rndhard_26.txt, 02_rndhard_27.txt, 02_rndhard_28.txt, 02_rndhard_29.txt, 02_rndhard_30.txt, 02_rndhard_31.txt, 02_rndhard_32.txt, 02_rndhard_33.txt, 02_rndhard_34.txt, 02_rndhard_35.txt, 02_rndhard_36.txt, 02_rndhard_37.txt, 02_rndhard_38.txt, 02_rndhard_39.txt, 03_rndhardsmall_00.txt, 03_rndhardsmall_01.txt, 03_rndhardsmall_02.txt, 03_rndhardsmall_03.txt, 03_rndhardsmall_04.txt, 03_rndhardsmall_05.txt, 03_rndhardsmall_06.txt, 03_rndhardsmall_07.txt, 03_rndhardsmall_08.txt, 03_rndhardsmall_09.txt
Case Name Status Exec Time Memory
00_min_01.txt AC 391 ms 23952 KB
00_min_02.txt AC 339 ms 23948 KB
00_min_03.txt AC 337 ms 23940 KB
00_min_04.txt AC 336 ms 23936 KB
00_min_05.txt AC 345 ms 24000 KB
00_min_06.txt AC 340 ms 23940 KB
00_min_07.txt AC 333 ms 23856 KB
00_min_08.txt AC 333 ms 23912 KB
00_sample_01.txt AC 330 ms 23900 KB
00_sample_02.txt AC 332 ms 23888 KB
00_sample_03.txt AC 345 ms 23916 KB
00_sample_04.txt AC 345 ms 23916 KB
00_sample_05.txt AC 343 ms 23972 KB
01_rnd_00.txt AC 451 ms 29824 KB
01_rnd_01.txt AC 494 ms 34716 KB
01_rnd_02.txt AC 477 ms 34052 KB
01_rnd_03.txt AC 484 ms 37832 KB
01_rnd_04.txt AC 483 ms 36940 KB
01_rnd_05.txt AC 454 ms 30224 KB
01_rnd_06.txt AC 478 ms 32548 KB
01_rnd_07.txt AC 521 ms 39176 KB
01_rnd_08.txt AC 450 ms 29984 KB
01_rnd_09.txt AC 460 ms 29764 KB
01_rnd_10.txt AC 495 ms 35076 KB
01_rnd_11.txt AC 447 ms 30044 KB
01_rnd_12.txt AC 476 ms 31772 KB
01_rnd_13.txt AC 476 ms 34288 KB
01_rnd_14.txt AC 448 ms 30180 KB
01_rnd_15.txt AC 506 ms 36640 KB
01_rnd_16.txt AC 455 ms 29896 KB
01_rnd_17.txt AC 509 ms 35456 KB
01_rnd_18.txt AC 448 ms 30108 KB
01_rnd_19.txt AC 539 ms 46520 KB
02_rndhard_00.txt AC 456 ms 30224 KB
02_rndhard_01.txt AC 467 ms 30000 KB
02_rndhard_02.txt AC 496 ms 31612 KB
02_rndhard_03.txt AC 478 ms 31440 KB
02_rndhard_04.txt AC 444 ms 30080 KB
02_rndhard_05.txt AC 445 ms 29900 KB
02_rndhard_06.txt AC 454 ms 30288 KB
02_rndhard_07.txt AC 456 ms 29896 KB
02_rndhard_08.txt AC 457 ms 30292 KB
02_rndhard_09.txt AC 463 ms 30552 KB
02_rndhard_10.txt AC 460 ms 30812 KB
02_rndhard_11.txt AC 457 ms 30308 KB
02_rndhard_12.txt AC 459 ms 30284 KB
02_rndhard_13.txt AC 453 ms 30632 KB
02_rndhard_14.txt AC 457 ms 30324 KB
02_rndhard_15.txt AC 461 ms 30724 KB
02_rndhard_16.txt AC 445 ms 29992 KB
02_rndhard_17.txt AC 443 ms 29992 KB
02_rndhard_18.txt AC 458 ms 30200 KB
02_rndhard_19.txt AC 443 ms 29988 KB
02_rndhard_20.txt AC 447 ms 30044 KB
02_rndhard_21.txt AC 494 ms 30328 KB
02_rndhard_22.txt AC 460 ms 30288 KB
02_rndhard_23.txt AC 462 ms 30668 KB
02_rndhard_24.txt AC 445 ms 30084 KB
02_rndhard_25.txt AC 443 ms 29960 KB
02_rndhard_26.txt AC 445 ms 29876 KB
02_rndhard_27.txt AC 441 ms 29916 KB
02_rndhard_28.txt AC 461 ms 29944 KB
02_rndhard_29.txt AC 446 ms 29968 KB
02_rndhard_30.txt AC 441 ms 29948 KB
02_rndhard_31.txt AC 445 ms 30096 KB
02_rndhard_32.txt AC 460 ms 30408 KB
02_rndhard_33.txt AC 463 ms 30200 KB
02_rndhard_34.txt AC 448 ms 30332 KB
02_rndhard_35.txt AC 443 ms 30040 KB
02_rndhard_36.txt AC 445 ms 30156 KB
02_rndhard_37.txt AC 444 ms 29996 KB
02_rndhard_38.txt AC 458 ms 30280 KB
02_rndhard_39.txt AC 463 ms 29984 KB
03_rndhardsmall_00.txt AC 333 ms 23916 KB
03_rndhardsmall_01.txt AC 347 ms 23992 KB
03_rndhardsmall_02.txt AC 343 ms 23908 KB
03_rndhardsmall_03.txt AC 338 ms 23936 KB
03_rndhardsmall_04.txt AC 334 ms 23892 KB
03_rndhardsmall_05.txt AC 338 ms 23964 KB
03_rndhardsmall_06.txt AC 342 ms 23928 KB
03_rndhardsmall_07.txt AC 345 ms 23860 KB
03_rndhardsmall_08.txt AC 348 ms 23920 KB
03_rndhardsmall_09.txt AC 347 ms 23864 KB