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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
#363459#7516. Robot ExperimentDelay_for_five_minutes#AC ✓1ms3732kbC++20961b2024-03-23 22:54:432024-03-23 22:54:44

Judging History

你现在查看的是最新测评结果

  • [2024-03-23 22:54:44]
  • 评测
  • 测评结果:AC
  • 用时:1ms
  • 内存:3732kb
  • [2024-03-23 22:54:43]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;

int n;
string s;
int b[41][41],o[41][41];
vector<pii> ans;
void dfs(int k,int i,int j){
    if(k==n){
        if(!o[i][j])ans.push_back({i,j});
        o[i][j]=1;
        return;
    }
    int x=i,y=j;
    if(s[k]=='L')--x;
    if(s[k]=='R')++x;
    if(s[k]=='D')--y;
    if(s[k]=='U')++y;
    if(b[x][y]!=-1){
        if(b[x][y]==0){
            b[x][y]=1;
            dfs(k+1,x,y);
            b[x][y]=0;
        }
        else{
            dfs(k+1,x,y);
        }
        if(b[x][y]==0){
            b[x][y]=-1;
            dfs(k+1,i,j);
            b[x][y]=0;
        }
    }
    else dfs(k+1,i,j);
}
int main(){
    ios::sync_with_stdio(0);cin.tie(0);
    cin>>n>>s;
    b[20][20]=1;
    dfs(0,20,20);
    cout<<ans.size()<<'\n';
    sort(ans.begin(),ans.end());
    for(auto&[x,y]:ans)cout<<x-20<<' '<<y-20<<'\n';
}

这程序好像有点Bug,我给组数据试试?

详细

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: 3672kb

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: 3732kb

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: 3708kb

input:

1
D

output:

2
0 -1
0 0

result:

ok 3 lines

Test #5:

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

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: 3636kb

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: 3560kb

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: 3648kb

input:

20
DUUDDUDUUDUDDUUDUDDU

output:

3
0 -1
0 0
0 1

result:

ok 4 lines

Test #9:

score: 0
Accepted
time: 0ms
memory: 3676kb

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: 1ms
memory: 3636kb

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