Submission #3834706

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Source Code Expand

#include<stdio.h>
#include<string.h>
int flag=0,m,n,vis[500+5][500+5];
void dfs(int x,int y);
int main(){
	int begin1,begin2;
	char get;
	scanf("%d%d",&n,&m);
	getchar();
	memset(vis,-1,sizeof(vis));
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
		//	scanf("%c",&get);
			//getchar();
			get=getchar();
			if(get=='s'){
				begin1=i;
				begin2=j;
			}
			if(get=='.')vis[i][j]=0;
			if(get=='#')vis[i][j]=-1;
			if(get=='s')vis[i][j]=1;
			if(get=='g')vis[i][j]=2;
		}
		getchar();
	}
	/*for(int i=1;i<=n;i++){for(int j=1;j<=m;j++){
	   	printf("%d ",vis[i][j]);
	   }
	   printf("\n");
	}*/
	   
//	printf("%d",vis[2][10]);
	//printf("%d\n",vis[0][3]);
	dfs(begin1,begin2);
	if(flag==1)printf("Yes");
	else printf("No");
}
void dfs(int x,int y){
	if(x<1||x>n||y<1||y>m||vis[x][y]==-1)return;
	//printf("%d %d\n",x,y);
	
	if(vis[x][y]==2){
		flag=1;
		vis[x][y]=-1;
		return;
	}
	else if(vis[x+1][y]==-1&&vis[x-1][y]==-1&&vis[x][y-1]==-1&&vis[x][y+1]==-1){
		//printf("%d\n",vis[2][10]);
		//	printf("%d %d\n",x,y);
		vis[x][y]=-1;
		return;
	}
	else{
		vis[x][y]=-1;
		dfs(x,y+1);
		dfs(x,y-1);
		dfs(x-1,y);
		dfs(x+1,y);
	}
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
                     ^

Judge Result