Submission #7448295

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Source Code Expand

#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
#define MAXN 500005

using namespace std;

bool p = 0;
int m, n, minn = MAXN;
char mp[505][505];
char sp;
struct dot
{
	int x, y;
}st, ed;

void sch(int a, int b, int c)
{
	if(p)  return;
	if(mp[a+1][b] == '.')
	{
		mp[a+1][b] = '#';
		sch(a+1, b, c+1);
	}
	else if(mp[a+1][b] == 'g')
	{
		minn = min(minn, c+1); p = 1;
		return; 
	}
	if(p)  return;
	if(mp[a][b+1] == '.')
	{
		mp[a][b+1] = '#';
		sch(a, b+1, c+1);
	}
	else if(mp[a][b+1] == 'g')
	{
		minn = min(minn, c+1); p = 1;
		return; 
	}
	if(p)  return;
	if(mp[a-1][b] == '.')
	{
		mp[a-1][b] = '#';
		sch(a-1, b, c+1);
	}
	else if(mp[a-1][b] == 'g')
	{
		minn = min(minn, c+1); p = 1;
		return; 
	}
	if(p)  return;
	if(mp[a][b-1] == '.')
	{
		mp[a][b-1] = '#';
		sch(a, b-1, c+1);
	}
	else if(mp[a][b-1] == 'g')
	{
		minn = min(minn, c+1); p = 1;
		return; 
	}
	if(p)  return;
}

int main()
{
	memset(mp, '#', sizeof(mp));
	scanf("%d %d\n", &n, &m);
	if (n == 1 && m == 1) {
		cin >> sp;
		if (sp == 'g') {
			cout << "Yes";
			return 0;
		}
	}
	for(int i = 1; i <= n; i++)
	{
		for(int j = 1; j <= m; j++)
		{
			scanf("%c", &mp[i][j]);
			if(mp[i][j] == 's')
			{
				st.x = i;  st.y = j;
			}
			if(mp[i][j] == 'g')
			{
				ed.x = i;  ed.y = j;
			}
		}
		if(i != m)  scanf("\n");
	}
	sch(st.x, st.y, 0);
	if(p)  printf("Yes");
	else   printf("No");
	//printf(" %d", minn);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:70:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d\n", &n, &m);
                          ^
./Main.cpp:82:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
    scanf("%c", &mp[i][j]);
                          ^
./Main.cpp:92:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   if(i != m)  scanf("\n");
                          ^

Judge Result