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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#350037	#6723. Grid with Arrows	wudibaolong^#	WA	84ms	4536kb	C++14	2.0kb	2024-03-10 13:02:06	2024-03-10 13:02:07

Judging History

你现在查看的是最新测评结果

[2024-03-10 13:02:07]
评测

测评结果：WA
用时：84ms
内存：4536kb

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[2024-03-10 13:02:06]
提交

answer

#include<bits/stdc++.h>
using namespace std;
const int N=1e5+10;
#define endl '\n'
int du[N];
char arrow[N];
int st[N];
int n,m;
int find_set(int x)
{
	if(st[x] != x) st[x] = find_set(st[x]);
	return st[x];
}
void union_set(int a,int b)
{
	int fa=find_set(a),fb=find_set(b);
	st[fa] = fb;	
}
bool check(int x,int y)
{
	if(x <0 || x>=n) return 0;
	if(y <0 || y>=m) return 0;
	return 1;
}

int main()
{
	int T;
	cin>>T;
	while(T--)
	{
		scanf("%d %d",&n,&m);
		
		for(int i=0;i<n*m;i++) st[i]=i;
		
		for(int i=0;i<n;i++)
		{
			for(int j=0;j<m;j++)
			{
				char ch;
				scanf(" %c",&ch);
				arrow[i*m+j]=ch;
			}
		}
		
		for(int i=0;i<n;i++)
		{
			for(int j=0;j<m;j++)
			{
				int val;
				scanf("%d",&val);
			
				if(arrow[i*m+j] == 'u')  
				{
					int num=(i-val)*m +j; 
					int x=i-val,y=j;
					if(!check(x,y)) continue; 
					
					du[i*m+j]++;
					//du[num]--;
					union_set(i*m+j,num);
				}
				else if(arrow[i*m+j] == 'd')  
				{
					int num=(i+val)*m +j; 
					int x=i+val,y=j;
					if(!check(x,y)) continue;
					
					du[i*m+j]++;
					du[num]--;
					union_set(i*m+j,num);
				}
				else if(arrow[i*m+j] == 'l')  
				{
					int num=i*m +j-val; 
					int x=i,y=j-val;
					if(!check(x,y)) continue;
					
					du[i*m+j]++;
					du[num]--;
					union_set(i*m+j,num);
				}
				else if(arrow[i*m+j] == 'r')  
				{
					int num=i*m +j+val; 
					int x=i,y=j+val; 
					if(!check(x,y)) continue;
					
					du[i*m+j]++;
					du[num]--;
					union_set(i*m+j,num);
				}
			}
		}
		
		bool flag=1;
		int root=find_set(0);
		int cnt_1 = 0, cnt1 = 0;
		int cnt0=0;
		for(int i=0;i<n*m;i++) 
		{
		
			if(find_set(i) != root) flag=0;
			
			if(du[i] == 0) cnt0++;
			if(du[i] == -1) cnt_1++;
			else if(du[i] == 1) cnt1++;
			else if(du[i] !=0) flag=0;
		
		}
		//cout<<endl;

		if(!flag)
		{
			cout<<"No"<<endl;
			continue;
		}
		
		
		if(cnt0 >= n-2 )
			cout<<"Yes"<<endl;
		else cout<<"No"<<endl;
	}
	
	
 }

Source code, Language: C++14

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 1ms

memory: 3772kb

input:

2
2 3
rdd
url
2 1 1
1 1 2
2 2
rr
rr
1 1
1 1

output:

Yes
No

result:

ok 2 token(s): yes count is 1, no count is 1

Test #2:

score: -100

Wrong Answer

time: 84ms

memory: 4536kb

input:

1109
5 8
rddddldl
drruludl
rrldrurd
urrrlluu
uurrulrl
4 4 1 2 4 3 1 6
1 3 5 1 1 1 3 6
2 4 1 1 2 1 1 1
2 3 4 2 4 3 3 3
4 1 1 2 2 5 1 5
7 9
rdrddrdll
urrdruldl
ruullrulu
drrlrlddl
rrrdddlll
ruulururl
ruurrlluu
7 1 1 1 2 1 2 3 6
1 7 3 1 3 1 2 1 8
2 2 1 2 4 3 1 2 2
2 2 4 1 1 5 3 3 1
3 4 6 1 2 1 2 7 7
6 ...

output:

Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No...

result:

wrong answer expected YES, found NO [5th token]