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QOJ

ID	题目	提交者	结果	用时	内存	语言	文件大小	提交时间	测评时间
#350023	#6723. Grid with Arrows	wudibaolong^#	WA	88ms	4620kb	C++14	2.0kb	2024-03-10 12:39:28	2024-03-10 12:39:29

Judging History

你现在查看的是最新测评结果

[2024-03-10 12:39:29]
评测

测评结果：WA
用时：88ms
内存：4620kb

查看

[2024-03-10 12:39:28]
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;
		for(int i=0;i<n*m;i++) 
		{
		
			if(find_set(i) != root) flag=0;
			
			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(cnt_1 == 1 && cnt1 == 1)
			cout<<"Yes"<<endl;
		else if(cnt_1 == 0 && cnt1 == 0)
			cout<<"Yes"<<endl;
		else cout<<"No"<<endl;
	}
	
	
 }

源文件, 语言: C++14

详细

Test #1:

score: 100

Accepted

time: 0ms

memory: 3760kb

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: 88ms

memory: 4620kb

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]