Submission #1963755

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Source Code Expand

#include "bits/stdc++.h"
using namespace std;
int main()
{
	int h, w;
	scanf("%d %d\n", &h, &w);
	vector<pair<int, int>> mv{make_pair(-1, 0), make_pair(0, -1), make_pair(0, 1), make_pair(1, 0)};
	vector<vector<char>> a(h + 2, vector<char>(w + 2, '#'));
	pair<int, int> s, g;
	for(int i = 1; i <= h; i++)
	{
		for(int j = 1; j <= w; j++)
		{
			scanf("%c", &a[i][j]);
			if(a[i][j] == 's')
			{
				s = make_pair(i, j);
			}
			else if(a[i][j] == 'g')
			{
				g = make_pair(i, j);
			}
		}
		scanf("\n");
	}
	queue<pair<int, int>> q;
	q.push(s);
	for(pair<int, int> t; !q.empty(); )
	{
		t = q.front();
		q.pop();
		if(t == g)
		{
			printf("Yes\n");
			return 0;
		}
		if(a[t.first][t.second] != '#')
		{
			a[t.first][t.second] = '#';
			for(int i = 0; i < 4; i++)
			{
				q.push(make_pair(t.first + mv[i].first, t.second + mv[i].second));
			}
		}
	}
	printf("No\n");
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:6:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d\n", &h, &w);
                          ^
./Main.cpp:14:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
    scanf("%c", &a[i][j]);
                         ^
./Main.cpp:24:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("\n");
              ^

Judge Result