Submission #7146390

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int dx[4]={1,0,-1,0},dy[4]={0,-1,0,1};   
int a[250001][3],x,y,sx,sy,ex,ey,n,m,map_[501][501];
char s[501][501];
bool judge=0;    
int main()
{int i,j;
scanf("%d""%d",&n,&m);
for(i=1;i<=n;i++)
    for(j=1;j<=m;j++)
    	cin>>s[i][j];   
for(i=1;i<=n;i++)
    for(j=1;j<=m;j++)
    	{if(s[i][j]=='.') map_[i][j]=0;
        if(s[i][j]=='#') map_[i][j]=1;
        if(s[i][j]=='s'){sx=i; sy=j; map_[i][j]=0;}
        if(s[i][j]=='g'){ex=i; ey=j; map_[i][j]=0;}
		}   
int head=0,tail=1;
map_[sx][sy]=-1;
a[tail][1]=sx;
a[tail][2]=sy;  
while(head<tail)   
    {head++;    
    for(i=0;i<4;i++)  
        {x=a[head][1]+dx[i];
        y=a[head][2]+dy[i];    
        if(x<=n&&x>0&&y<=m&&y>0&&!map_[x][y])    
            {tail++;   
            a[tail][1]=x;
            a[tail][2]=y; 
            map_[x][y]=-1;    
            if(x==ex&&y==ey)  
                {cout<<"Yes"<<endl;
                judge=1;}
            }
        }
        if(judge) break;}
    if(!judge) cout<<"No"<<endl;    
}		

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:9:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
 scanf("%d""%d",&n,&m);
                      ^

Judge Result