Submission #3497985

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Source Code Expand

#include<iostream>
#include<cstdio>
using namespace std;
int n,ans,m,jx,jy;
bool qwq[505][505];
char a[505][505];
int dx[4]={0,0,1,-1};
int dy[8]={1,-1,0,0};
void dfs(int x,int y)
{
	if(a[x][y]=='g'){
	ans++;
	return;
	}
	for(int i=0;i<4;i++)
	{
		if(x+dx[i]>=1&&x+dx[i]<=n&&y+dy[i]>=1&&y+dy[i]<=m&&!qwq[x+dx[i]][y+dy[i]])
		{
		qwq[x+dx[i]][y+dy[i]]=1;
		dfs(x+dx[i],y+dy[i]);
		qwq[x+dx[i]][y+dy[i]]=0;
		}
	}
}
int main()
{
	scanf("%d%d",&n,&m);
	for(int i=1;i<=n;i++)
	for(int j=1;j<=m;j++)
	{
		cin>>a[i][j];
		if(a[i][j]=='#') qwq[i][j]=1;
		if(a[i][j]=='s'){jx=i;
		jy=j;
		}
	}
	qwq[jx][jy]=1;
	dfs(jx,jy);
	if(ans>0) cout<<"Yes"<<endl;
	if(ans==0) cout<<"No"<<endl;
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:27:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
                     ^

Judge Result