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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
#191272#7516. Robot Experimentucup-team1134#TL 672ms3840kbC++171.5kb2023-09-29 21:13:012023-09-29 21:13:01

Judging History

你现在查看的是最新测评结果

  • [2023-09-29 21:13:01]
  • 评测
  • 测评结果:TL
  • 用时:672ms
  • 内存:3840kb
  • [2023-09-29 21:13:01]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return true; } return false; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return true; } return false; }
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define mp make_pair
#define si(x) int(x.size())
const int mod=998244353,MAX=300005,INF=1<<30;

int main(){
    
    std::ifstream in("text.txt");
    std::cin.rdbuf(in.rdbuf());
    cin.tie(0);
    ios::sync_with_stdio(false);
    
    int N;cin>>N;
    string S;cin>>S;
    string U="LRDU";
    vector<int> dx={-1,1,0,0},dy={0,0,-1,1};
    set<pair<int,int>> ans;
    
    for(int bit=0;bit<(1<<N);bit++){
        set<pair<int,int>> NG,NOTNG;
        NOTNG.insert(mp(0,0));
        int x=0,y=0;
        bool ok=true;
        for(int i=0;i<N;i++){
            for(int k=0;k<4;k++){
                if(S[i]==U[k]){
                    int tox=x+dx[k],toy=y+dy[k];
                    if(bit&(1<<i)){
                        if(NOTNG.count(mp(tox,toy))) ok=false;
                        NG.insert(mp(tox,toy));
                    }else{
                        if(NG.count(mp(tox,toy))) ok=false;
                        NOTNG.insert(mp(tox,toy));
                        x=tox;
                        y=toy;
                    }
                }
            }
        }
        if(ok) ans.insert(mp(x,y));
    }
    
    cout<<si(ans)<<"\n";
    for(auto [a,b]:ans) cout<<a<<" "<<b<<"\n";
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3548kb

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: 3548kb

input:

4
LRUD

output:

4
0 -1
0 0
1 -1
1 0

result:

ok 5 lines

Test #3:

score: 0
Accepted
time: 568ms
memory: 3840kb

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: 3612kb

input:

1
D

output:

2
0 -1
0 0

result:

ok 3 lines

Test #5:

score: 0
Accepted
time: 672ms
memory: 3808kb

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: -100
Time Limit Exceeded

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: