結果

問題 No.5006 Hidden Maze
ユーザー a9ua1i0na9ua1i0n
提出日時 2022-06-12 18:12:19
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 49 ms / 2,000 ms
コード長 4,793 bytes
コンパイル時間 1,878 ms
実行使用メモリ 22,820 KB
スコア 939
平均クエリ数 925.12
最終ジャッジ日時 2022-06-12 18:12:31
合計ジャッジ時間 10,638 ms
ジャッジサーバーID
(参考情報)
judge11 / judge14
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 45 ms
22,552 KB
testcase_01 AC 19 ms
22,620 KB
testcase_02 AC 46 ms
21,756 KB
testcase_03 AC 45 ms
21,928 KB
testcase_04 AC 45 ms
21,768 KB
testcase_05 AC 47 ms
22,228 KB
testcase_06 AC 45 ms
22,216 KB
testcase_07 AC 46 ms
21,992 KB
testcase_08 AC 46 ms
22,192 KB
testcase_09 AC 47 ms
22,620 KB
testcase_10 AC 45 ms
22,564 KB
testcase_11 AC 48 ms
22,004 KB
testcase_12 AC 46 ms
21,952 KB
testcase_13 AC 19 ms
21,880 KB
testcase_14 AC 46 ms
21,892 KB
testcase_15 AC 46 ms
21,940 KB
testcase_16 AC 46 ms
21,756 KB
testcase_17 AC 46 ms
22,704 KB
testcase_18 AC 47 ms
22,240 KB
testcase_19 AC 46 ms
22,552 KB
testcase_20 AC 46 ms
22,204 KB
testcase_21 AC 47 ms
22,612 KB
testcase_22 AC 45 ms
21,904 KB
testcase_23 AC 45 ms
22,204 KB
testcase_24 AC 46 ms
21,928 KB
testcase_25 AC 46 ms
22,564 KB
testcase_26 AC 20 ms
21,992 KB
testcase_27 AC 45 ms
21,892 KB
testcase_28 AC 46 ms
21,940 KB
testcase_29 AC 46 ms
21,868 KB
testcase_30 AC 46 ms
22,004 KB
testcase_31 AC 45 ms
21,880 KB
testcase_32 AC 46 ms
21,928 KB
testcase_33 AC 46 ms
22,264 KB
testcase_34 AC 45 ms
21,868 KB
testcase_35 AC 48 ms
22,004 KB
testcase_36 AC 49 ms
21,916 KB
testcase_37 AC 48 ms
21,836 KB
testcase_38 AC 46 ms
21,772 KB
testcase_39 AC 46 ms
21,904 KB
testcase_40 AC 46 ms
21,768 KB
testcase_41 AC 47 ms
21,748 KB
testcase_42 AC 45 ms
22,408 KB
testcase_43 AC 23 ms
22,588 KB
testcase_44 AC 45 ms
21,756 KB
testcase_45 AC 47 ms
22,204 KB
testcase_46 AC 18 ms
22,228 KB
testcase_47 AC 45 ms
22,576 KB
testcase_48 AC 46 ms
22,612 KB
testcase_49 AC 45 ms
22,240 KB
testcase_50 AC 19 ms
22,600 KB
testcase_51 AC 46 ms
21,892 KB
testcase_52 AC 47 ms
21,868 KB
testcase_53 AC 45 ms
22,276 KB
testcase_54 AC 46 ms
22,276 KB
testcase_55 AC 46 ms
21,768 KB
testcase_56 AC 45 ms
21,756 KB
testcase_57 AC 46 ms
21,928 KB
testcase_58 AC 47 ms
22,456 KB
testcase_59 AC 47 ms
21,880 KB
testcase_60 AC 47 ms
22,444 KB
testcase_61 AC 27 ms
21,904 KB
testcase_62 AC 46 ms
22,228 KB
testcase_63 AC 45 ms
21,768 KB
testcase_64 AC 18 ms
21,868 KB
testcase_65 AC 44 ms
21,916 KB
testcase_66 AC 45 ms
22,564 KB
testcase_67 AC 47 ms
22,228 KB
testcase_68 AC 45 ms
21,904 KB
testcase_69 AC 44 ms
21,892 KB
testcase_70 AC 46 ms
21,940 KB
testcase_71 AC 45 ms
22,420 KB
testcase_72 AC 47 ms
21,768 KB
testcase_73 AC 45 ms
21,648 KB
testcase_74 AC 46 ms
21,768 KB
testcase_75 AC 44 ms
21,892 KB
testcase_76 AC 47 ms
22,264 KB
testcase_77 AC 46 ms
22,692 KB
testcase_78 AC 45 ms
21,892 KB
testcase_79 AC 45 ms
21,928 KB
testcase_80 AC 46 ms
21,832 KB
testcase_81 AC 46 ms
22,576 KB
testcase_82 AC 47 ms
21,780 KB
testcase_83 AC 47 ms
22,820 KB
testcase_84 AC 46 ms
22,192 KB
testcase_85 AC 46 ms
22,564 KB
testcase_86 AC 46 ms
21,892 KB
testcase_87 AC 44 ms
22,216 KB
testcase_88 AC 45 ms
21,760 KB
testcase_89 AC 46 ms
21,892 KB
testcase_90 AC 45 ms
22,216 KB
testcase_91 AC 45 ms
22,204 KB
testcase_92 AC 44 ms
22,004 KB
testcase_93 AC 46 ms
21,928 KB
testcase_94 AC 46 ms
22,444 KB
testcase_95 AC 45 ms
21,916 KB
testcase_96 AC 38 ms
22,644 KB
testcase_97 AC 47 ms
22,564 KB
testcase_98 AC 47 ms
22,552 KB
testcase_99 AC 45 ms
22,588 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp: 関数 ‘void Astar()’ 内:
main.cpp:107:17: 警告: ‘skip_dir’ はこの関数内初期化されずに使用されるかもしれません [-Wmaybe-uninitialized]
  107 |                 if (dir == skip_dir ){
      |                 ^~

ソースコード

diff #

#if !__INCLUDE_LEVEL__
#include __FILE__

const char DIR[4] = {'D', 'R', 'L', 'U'};


void output(vector<char> &ans){
    for( char c : ans){
        cout << c;
    }
    cout << endl;
}

vector<vector<int>> seen;
map<char,pair<int,int>> dir2num;
ll h,w,p;



struct A{
    int cost;
    vector<char> ans;
    int curX;
    int curY;

    bool operator<( const A& right ) const {
        return cost == right.cost ? ans.size() < right.ans.size() : cost < right.cost;
    }
    bool operator>( const A& right ) const {
        return cost == right.cost ? ans.size() > right.ans.size() : cost > right.cost;
    }
};



int CalcCost(int X, int Y, vector<char> &ans){
    return (abs(19-X)+abs(19-Y))*100;
}
priority_queue<A, vector<A>, greater<A>> que;

void Astar(){
    
    que.push(A{10000000, {'D','D'}, 0,0});
    que.push(A{10000000, {'R','R'}, 0,0});
    que.push(A{10000000, {'D','R'}, 0,0});
    que.push(A{10000000, {'R','D'}, 0,0});

    while (!que.empty())
    {
        A a = que.top();
        que.pop();

        if (a.ans.size() > 400) {
            return;
        }

        /////////////////////////////////////////

        ll score = 0;
        int cnt = 0;
        do{
            output(a.ans);

            cin >> score;

            if (score == -1) {
                exit(0);
            }

            cnt++;
            if(cnt > 400)break;
        }while(score < a.ans.size()-2);
        
        if (score == a.ans.size() - 1) {
            a.ans.pop_back();
        }
        else if (score == a.ans.size() - 2) {
            continue;
        }


        /////////////////////////////////////////

        char skip_dir;
        if(a.ans.size() > 0){
            switch ( a.ans.back()) {
                case 'L' :
                    skip_dir='R';
                    break;
                case 'U' :
                    skip_dir='D';
                    break;
                case 'R' :
                    skip_dir='L';
                    break;
                case 'D' :
                    skip_dir='U';
                    break;
            }
        }
        else{
            skip_dir=' ';
        }

        for (int i = 0; i < 1; i++){
            for (char dir : DIR ){
                if (dir == skip_dir ){
                    continue;
                }

                int nxtX = dir2num[dir].first+a.curX;
                int nxtY = dir2num[dir].second+a.curY;

                if(nxtX < 0 || h <= nxtX || nxtY < 0 || w <= nxtY ){
                    // cerr << "ans1" << "\n";
                    continue;
                }
                if(seen[nxtX][nxtY] <= a.ans.size()+1){
                    // cerr << "ans2" << "\n";
                    continue;
                }
                seen[nxtX][nxtY] = a.ans.size()+1;

                vector<char> ans2(a.ans);
                ans2.push_back(dir);

                // int cost = CalcCost(nxtX, nxtY, ans2);

                // que.push(A{cost, ans2, nxtX, nxtY});
                

                for (char dir2 : DIR ){
                    int nxtX2 = dir2num[dir2].first+nxtX;
                    int nxtY2 = dir2num[dir2].second+nxtY;

                    if(nxtX2 < 0 || h <= nxtX2 || nxtY2 < 0 || w <= nxtY2 ){
                        // cerr << "ans1" << "\n";
                        continue;
                    }
                    if(seen[nxtX2][nxtY2] <= a.ans.size()+1){
                        // cerr << "ans2" << "\n";
                        continue;
                    }

                    vector<char> ans3(ans2);
                    ans3.push_back(dir2);

                    int cost = CalcCost(nxtX2, nxtY2, ans3);

                    que.push(A{cost, ans3, nxtX2, nxtY2});
                    
                }
            }
        }
    }
    

}

signed main()
{
    cin >> h >> w >> p;

    vector<vector<ll>> is_wall(h-1, vector<ll>(w-1));
    seen.resize(h, vector<int>(w, 10000000));

    dir2num['U'] = pair<int,int>(-1, 0);
    dir2num['L'] = pair<int,int>( 0,-1);
    dir2num['D'] = pair<int,int>(+1, 0);
    dir2num['R'] = pair<int,int>( 0,+1);

    vector<char> ans;

    Astar();
    
    return 0;
}


//====================temp====================
#else
#include <bits/stdc++.h>
using namespace std;
#define REP(i, n) for (int i = 0; i < (int)(n); i++)
#define RREP(i, n) for (int i = ((int)(n)-1); i >= 0; i--)
#define REPITR(itr, ARRAY) for (auto itr = (ARRAY).begin(); itr != (ARRAY).end(); ++itr)
#define RREPITR(itr, ARRAY) for (auto itr = (ARRAY).rbegin(); itr != (ARRAY).end(); ++itr)
#define ALL(n) (n).begin(),(n).end()
using ll = long long;
using ull = unsigned long long;
//#define int long long
template <typename T>
struct edge{
    int to;
    T cost;
    edge(){}
    edge(int to, T cost):to(to), cost(cost){}
};
#endif
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