Submission #6506355

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Source Code Expand

#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
static const int MAX = 1001;
static struct Point
{
       int x;
       int y; 
	   inline void zero()
	   {
			x = 0, y = 0;
			return;
	   }      
}depart, detinate;
static int sum = 0;
static int m, n;
static int dx[5] = { 0, 1, -1, 0, 0 };
static int dy[5] = { 0, 0, 0, -1, 1 };
static char grape[MAX][MAX];
static bool visit[MAX][MAX];
inline void dfs(int x, int y); 
int main(void)
{
	scanf("%d%d", &n, &m);
	depart.zero();
	detinate.zero();
	memset(grape, 0, sizeof(grape));
    memset(visit, false, sizeof(visit));
    for (register int i = 1; i <=n; i++)
    {
        for (register int j = 1; j <= m; j++)
        {
        	register char temp;
            scanf("%c", &temp);
            if (temp == '\n') scanf("%c", &temp);
            grape[i][j] = temp;
            if (grape[i][j] == '#') visit[i][j] = true;
            if (grape[i][j] == 's') depart.x = i, depart.y = j;
            if (grape[i][j] == 'g') detinate.x = i, detinate.y = j;
        }
    }
    if (depart.x == 0 and depart.y == 0||depart.x == 0 and depart.y == 0)
    {
    	printf("No");
    	return 0;
	}

    dfs(depart.x, depart.y);
    if (sum != 0) printf("Yes");
    else printf("No");
    return 0;
} 
inline void dfs(int x, int y)
{
	for (register int i = 1; i <= 4; i++)
	{
		register int _x = x + dx[i];
		register int _y = y + dy[i];
		if (_x >= 1 and _x <= n and _y >= 1 and _y <= m and visit[_x][_y] == false)
		{
			visit[_x][_y] = true;
			if (_x == detinate.x and _y == detinate.y) sum++;
			else dfs(_x,_y);
		}
	}
	return;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:25:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
                       ^
./Main.cpp:35:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
             scanf("%c", &temp);
                               ^
./Main.cpp:36:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
             if (temp == '\n') scanf("%c", &temp);
                                                 ^

Judge Result