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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#549156#7516. Robot ExperimentStelorAC ✓2ms3712kbC++171.6kb2024-09-06 10:39:212024-09-06 10:39:22

Judging History

你现在查看的是最新测评结果

  • [2024-09-06 10:39:22]
  • 评测
  • 测评结果:AC
  • 用时:2ms
  • 内存:3712kb
  • [2024-09-06 10:39:21]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
int n,num;
string s;
map<pair<int,int>,int> mp;
set<pair<int,int>> ans;
void dfs(int x,int y,int now)
{
	if(now==n) 
	{
		ans.insert({x,y});
		return;
	}
	if(s[now]=='L')
	{
		if(mp.count({x-1,y}))
		{
			if(mp[{x-1,y}]==1)
			{
				dfs(x-1,y,now+1);
			} 
			else
			{
				dfs(x,y,now+1);
			}
		}
		else
		{
			mp[{x-1,y}]=0;
			dfs(x,y,now+1);
			mp[{x-1,y}]=1;
			dfs(x-1,y,now+1);
			mp.erase({x-1,y});
		}
	}
	else if(s[now]=='R')
	{
		if(mp.count({x+1,y}))
		{
			if(mp[{x+1,y}]==1)
			{
				dfs(x+1,y,now+1);
			} 
			else
			{
				dfs(x,y,now+1);
			}
		}
		else
		{
			mp[{x+1,y}]=0;
			dfs(x,y,now+1);
			mp[{x+1,y}]=1;
			dfs(x+1,y,now+1);
			mp.erase({x+1,y});
		}
	}
	else if(s[now]=='U') 
	{
		if(mp.count({x,y+1}))
		{
			if(mp[{x,y+1}]==1)
			{
				dfs(x,y+1,now+1);
			} 
			else
			{
				dfs(x,y,now+1);
			}
		}
		else
		{
			mp[{x,y+1}]=0;
			dfs(x,y,now+1);
			mp[{x,y+1}]=1;
			dfs(x,y+1,now+1);
			mp.erase({x,y+1});
		}
	}
	else if(s[now]=='D')
	{
		if(mp.count({x,y-1}))
		{
			if(mp[{x,y-1}]==1)
			{
				dfs(x,y-1,now+1);
			} 
			else
			{
				dfs(x,y,now+1);
			}
		}
		else
		{
			mp[{x,y-1}]=0;
			dfs(x,y,now+1);
			mp[{x,y-1}]=1;
			dfs(x,y-1,now+1);
			mp.erase({x,y-1});
		}
	}
	
}
void solve()
{
	cin>>n>>s;
	mp[{0,0}]=1;
	dfs(0,0,0);
	cout<<ans.size()<<'\n';
	for(auto [i,j]:ans) 
	{
		cout<<i<<" "<<j<<"\n";
	}
}
int main()
{
	ios::sync_with_stdio(0),cin.tie(0);
	solve();
	return 0; 
}

这程序好像有点Bug,我给组数据试试?

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3592kb

input:

2
RU

output:

4
0 0
0 1
1 0
1 1

result:

ok 5 lines

Test #2:

score: 0
Accepted
time: 0ms
memory: 3652kb

input:

4
LRUD

output:

4
0 -1
0 0
1 -1
1 0

result:

ok 5 lines

Test #3:

score: 0
Accepted
time: 0ms
memory: 3656kb

input:

20
LLLRLRLRLLLRLLRLRLLR

output:

8
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0 0
1 0

result:

ok 9 lines

Test #4:

score: 0
Accepted
time: 0ms
memory: 3652kb

input:

1
D

output:

2
0 -1
0 0

result:

ok 3 lines

Test #5:

score: 0
Accepted
time: 0ms
memory: 3684kb

input:

20
UUUUUUUUUUUUUUUUUUUU

output:

21
0 0
0 1
0 2
0 3
0 4
0 5
0 6
0 7
0 8
0 9
0 10
0 11
0 12
0 13
0 14
0 15
0 16
0 17
0 18
0 19
0 20

result:

ok 22 lines

Test #6:

score: 0
Accepted
time: 0ms
memory: 3712kb

input:

20
LRUDDULRUDRLLRDURLUD

output:

22
-2 0
-2 1
-1 -2
-1 -1
-1 0
-1 1
-1 2
0 -2
0 -1
0 0
0 1
0 2
1 -2
1 -1
1 0
1 1
1 2
2 -2
2 -1
2 0
2 1
2 2

result:

ok 23 lines

Test #7:

score: 0
Accepted
time: 0ms
memory: 3652kb

input:

20
UUDUDUUDUDUDUDUDLLRL

output:

12
-2 -1
-2 0
-2 1
-2 2
-1 -1
-1 0
-1 1
-1 2
0 -1
0 0
0 1
0 2

result:

ok 13 lines

Test #8:

score: 0
Accepted
time: 0ms
memory: 3656kb

input:

20
DUUDDUDUUDUDDUUDUDDU

output:

3
0 -1
0 0
0 1

result:

ok 4 lines

Test #9:

score: 0
Accepted
time: 0ms
memory: 3660kb

input:

20
RUDLUULDRURLDURLDURR

output:

29
-3 3
-3 4
-2 2
-2 3
-2 4
-1 1
-1 2
-1 3
-1 4
0 -1
0 0
0 1
0 2
0 3
0 4
1 -1
1 0
1 1
1 2
1 3
2 -1
2 0
2 1
2 2
2 3
3 -1
3 0
3 1
3 2

result:

ok 30 lines

Test #10:

score: 0
Accepted
time: 2ms
memory: 3688kb

input:

20
DLDLDLDLLLDLLDLDLDLR

output:

108
-10 -8
-10 -7
-10 -6
-10 -5
-10 -4
-10 -3
-10 -2
-10 -1
-10 0
-9 -8
-9 -7
-9 -6
-9 -5
-9 -4
-9 -3
-9 -2
-9 -1
-9 0
-8 -8
-8 -7
-8 -6
-8 -5
-8 -4
-8 -3
-8 -2
-8 -1
-8 0
-7 -8
-7 -7
-7 -6
-7 -5
-7 -4
-7 -3
-7 -2
-7 -1
-7 0
-6 -8
-6 -7
-6 -6
-6 -5
-6 -4
-6 -3
-6 -2
-6 -1
-6 0
-5 -8
-5 -7
-5 -6
-5 -...

result:

ok 109 lines

Extra Test:

score: 0
Extra Test Passed