Submission #7481726

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Source Code Expand

using System;
using System.Collections.Generic;
using System.Linq;

public class Hello
{

    static int[,] map = new int[500, 500];
    static int H = new int();
    static int W = new int();
    public static void Main()
    {
        string[] str = Console.ReadLine().Split(' ');
        H = int.Parse(str[0]);
        W = int.Parse(str[1]);
        int startH = new int();
        int startW = new int();
        int goalH = new int();
        int goalW = new int();
        string str2;
        for(int i = 0; i < H; i++)
        {
            str2 = Console.ReadLine();
            for(int j = 0; j < W; j++)
            {
                switch (str2[j]) {
                    case ('s'):
                        map[i, j] = 1;
                        startH = i;
                        startW = j;
                        break;
                    case ('g'):
                        map[i, j] = 1;
                        goalH = i;
                        goalW = j;
                        break;
                    case ('.'):
                        map[i, j] = 1;
                        break;
                    case ('#'):
                        map[i, j] = 0;
                        break;
                }
            }
            

        }
        walking(startW, startH);
        if(map[goalH,goalW] == 2)
        {
            Console.WriteLine("Yes");
        }
        else
        {
            Console.WriteLine("No");
        }

        return;
    }

    public static void walking(int x, int y)
    {
        if(x < 0 || x >= W || y < 0 || y >= H)
        {
            return;
        }
        if(map[y,x] == 0)
        {
            return;
        }
        if(map[y,x] == 2)
        {
            return;
        }
        map[y,x] = 2;
        walking(x + 1, y);
        walking(x - 1, y);
        walking(x, y + 1);
        walking(x, y - 1);
    }
}

Submission Info

Judge Result