結果

問題 No.5006 Hidden Maze
ユーザー highjumphighjump
提出日時 2022-06-12 17:01:38
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 177 ms / 2,000 ms
コード長 5,183 bytes
コンパイル時間 2,407 ms
実行使用メモリ 22,868 KB
スコア 89,777
平均クエリ数 103.23
最終ジャッジ日時 2022-06-12 17:01:50
合計ジャッジ時間 10,265 ms
ジャッジサーバーID
（参考情報） 		judge15 / judge12
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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 24 ms
22,564 KB
testcase_01 AC 29 ms
21,952 KB
testcase_02 AC 25 ms
22,004 KB
testcase_03 AC 21 ms
21,940 KB
testcase_04 AC 32 ms
21,928 KB
testcase_05 AC 31 ms
21,904 KB
testcase_06 AC 31 ms
21,892 KB
testcase_07 AC 23 ms
21,904 KB
testcase_08 AC 75 ms
22,600 KB
testcase_09 AC 42 ms
21,768 KB
testcase_10 AC 27 ms
22,264 KB
testcase_11 AC 27 ms
22,444 KB
testcase_12 AC 29 ms
22,864 KB
testcase_13 AC 22 ms
22,216 KB
testcase_14 AC 44 ms
21,992 KB
testcase_15 AC 23 ms
22,632 KB
testcase_16 AC 23 ms
21,824 KB
testcase_17 AC 25 ms
21,780 KB
testcase_18 AC 60 ms
22,216 KB
testcase_19 AC 40 ms
22,620 KB
testcase_20 AC 29 ms
22,144 KB
testcase_21 AC 31 ms
21,780 KB
testcase_22 AC 26 ms
21,768 KB
testcase_23 AC 27 ms
21,928 KB
testcase_24 AC 34 ms
22,004 KB
testcase_25 AC 28 ms
22,228 KB
testcase_26 AC 164 ms
21,892 KB
testcase_27 AC 39 ms
21,992 KB
testcase_28 AC 22 ms
22,084 KB
testcase_29 AC 49 ms
22,620 KB
testcase_30 AC 25 ms
21,904 KB
testcase_31 AC 28 ms
21,892 KB
testcase_32 AC 60 ms
21,940 KB
testcase_33 AC 28 ms
21,916 KB
testcase_34 AC 28 ms
21,992 KB
testcase_35 AC 25 ms
21,964 KB
testcase_36 AC 27 ms
21,964 KB
testcase_37 AC 36 ms
22,228 KB
testcase_38 AC 33 ms
22,632 KB
testcase_39 AC 21 ms
21,940 KB
testcase_40 AC 30 ms
22,612 KB
testcase_41 AC 48 ms
21,992 KB
testcase_42 AC 29 ms
21,792 KB
testcase_43 AC 67 ms
22,228 KB
testcase_44 AC 23 ms
21,928 KB
testcase_45 AC 37 ms
22,504 KB
testcase_46 AC 51 ms
22,612 KB
testcase_47 AC 28 ms
21,940 KB
testcase_48 AC 31 ms
22,588 KB
testcase_49 AC 89 ms
21,756 KB
testcase_50 AC 24 ms
21,892 KB
testcase_51 AC 78 ms
22,456 KB
testcase_52 AC 37 ms
21,768 KB
testcase_53 AC 41 ms
21,928 KB
testcase_54 AC 25 ms
21,780 KB
testcase_55 AC 33 ms
21,980 KB
testcase_56 AC 28 ms
21,940 KB
testcase_57 AC 45 ms
21,780 KB
testcase_58 AC 29 ms
22,612 KB
testcase_59 AC 26 ms
22,216 KB
testcase_60 AC 27 ms
22,564 KB
testcase_61 AC 26 ms
21,904 KB
testcase_62 AC 27 ms
21,904 KB
testcase_63 AC 43 ms
22,456 KB
testcase_64 AC 27 ms
22,856 KB
testcase_65 AC 23 ms
21,904 KB
testcase_66 AC 26 ms
21,768 KB
testcase_67 AC 20 ms
21,848 KB
testcase_68 AC 43 ms
22,600 KB
testcase_69 AC 33 ms
22,432 KB
testcase_70 AC 26 ms
22,624 KB
testcase_71 AC 20 ms
21,952 KB
testcase_72 AC 22 ms
22,240 KB
testcase_73 AC 27 ms
21,760 KB
testcase_74 AC 25 ms
22,612 KB
testcase_75 AC 40 ms
21,940 KB
testcase_76 AC 27 ms
21,768 KB
testcase_77 AC 51 ms
22,632 KB
testcase_78 AC 26 ms
22,596 KB
testcase_79 AC 85 ms
21,780 KB
testcase_80 AC 24 ms
21,904 KB
testcase_81 AC 31 ms
21,848 KB
testcase_82 AC 23 ms
22,612 KB
testcase_83 AC 22 ms
21,892 KB
testcase_84 AC 40 ms
22,276 KB
testcase_85 AC 33 ms
22,456 KB
testcase_86 AC 27 ms
21,892 KB
testcase_87 AC 46 ms
22,004 KB
testcase_88 AC 31 ms
21,892 KB
testcase_89 AC 45 ms
21,928 KB
testcase_90 AC 25 ms
21,940 KB
testcase_91 AC 26 ms
21,904 KB
testcase_92 AC 34 ms
21,892 KB
testcase_93 AC 20 ms
22,004 KB
testcase_94 AC 32 ms
21,600 KB
testcase_95 AC 42 ms
22,016 KB
testcase_96 AC 19 ms
21,768 KB
testcase_97 AC 32 ms
22,868 KB
testcase_98 AC 177 ms
21,952 KB
testcase_99 AC 29 ms
22,216 KB
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コンパイルメッセージ
main.cpp: 関数 ‘int move(int, char)’ 内:
main.cpp:134:1: 警告: 制御が非 void 関数の終りに到達しました [-Wreturn-type]
  134 | }
      | ^
main.cpp: 関数 ‘std::string findPath()’ 内:
main.cpp:173:1: 警告: 制御が非 void 関数の終りに到達しました [-Wreturn-type]
  173 | }
      | ^

ソースコード

diff # 

#pragma GCC optimize("Ofast")
#include <iostream>
#include <algorithm>
#include <string>
#include <cstdlib>
#include <cmath>
#include <iomanip>
#include <cctype>
#include <sstream>
#include <vector>
#include <stack>
#include <deque>
#include <queue>
#include <list>
#include <set>
#include <map>
#include <unordered_map>  
#include <chrono>
#include <random>

using namespace std;

using ll = long long;
using P = pair<int, int>;
template <class T>using V = vector<T>;
template <class T>using VV = V<V<T>>;
template <class T, class U>bool chmin(T& t, const U& u) { if (t > u) { t = u; return 1; } else return 0; }
template <class T, class U>bool chmax(T& t, const U& u) { if (t < u) { t = u; return 1; } else return 0; }

#define REP(i,n) for(int i=0;i<int(n);i++)
#define FOR(i,a,b) for(int i=int(a);i<=int(b);i++)
#define FORD(i,a,b) for(int i=int(a);i>=int(b);i--)
#define MP make_pair
#define SZ(x) int(x.size())
#define ALL(x) x.begin(),x.end()
#define INF 10001000
#define endl "\n"

chrono::system_clock::time_point t_start;
const double TIME_LIMIT1 = 500, TIME_LIMIT = 2930;
double last_update = 0, t_diff;
double start_temp, end_temp;

mt19937 rng;
using uni_int = uniform_int_distribution<>;
using uni_real = uniform_real_distribution<>;
using u64 = uint64_t;
using u32 = uint32_t;

V<int> y_vec = { 0, 1,0, -1 };
V<int> x_vec = { -1, 0,1, 0 };

class XorInt {
public:
    uint32_t x = 2463534242;

    XorInt() {};

    XorInt(uint32_t seed) {
        x = 2463534242 + seed;
    };

    uint32_t next() {
        x ^= x << 13; x ^= x >> 17; x ^= x << 5;
        return x;
    }

    uint32_t operator()(uint32_t l, uint32_t r) {
        return (this->next() % (r - l)) + l;
    }

    uint32_t operator()(uint32_t d) {
        return this->next() % d;
    }
};

XorInt xs;

class Xor64 {
public:
    uint64_t x = 88172645463325252ULL;

    Xor64() {};

    Xor64(uint64_t seed) {
        x = 88172645463325252ULL + seed;
    }

    uint64_t next() {
        x ^= x << 13; x ^= x >> 7; x ^= x << 17;
        return x;
    }

    uint64_t operator()(uint64_t l, uint64_t r) {
        return (this->next() % (r - l)) + l;
    }

    uint64_t operator()(uint64_t d) {
        return this->next() % d;
    }
};

Xor64 xx;

void get_time() {
    auto t_now = chrono::system_clock::now();
    t_diff = chrono::duration_cast<chrono::milliseconds>(t_now - t_start).count();
}



int H, W, p;

int Pos(int x, int y) {
    return x * W + y;
}

char Dir(int pos, int npos) {
    if (pos / H == npos / H) {
        if (pos < npos)return'R';
        else return 'L';
    }
    else {
        if (pos < npos)return'D';
        else return 'U';
    }
}

int move(int pos, char dir) {
    if (dir == 'U')return pos - W;
    if (dir == 'R')return pos + 1;
    if (dir == 'D')return pos + W;
    if (dir == 'L')return pos - 1;
}

string Direction = "URDL";

VV<int> pass;

class Cell {
public:
    int state = 0;

    V<int> around4;
    Cell() {};
};

V<Cell> grid;

string findPath() {
    int start = 0;
    int goal = H * W - 1;
    V<int> d(H * W, INF);
    V<string> path(H * W, "");
    d[0] = 0;
    priority_queue<P, V<P>, greater<P>> pq;
    pq.push(MP(0, 0));
    while (!pq.empty()) {
        int dis = pq.top().first;
        int pos = pq.top().second;
        pq.pop();
        if (dis > d[pos])continue;
        if (pos == goal)return path[goal];
        for (auto npos : grid[pos].around4) {
            int cost = max(0, pass[pos][npos]);
            if(pass[pos][npos]==0)cost += xs(1,(100-p)/2);
            if (chmin(d[npos], d[pos] + cost)) {
                path[npos] = path[pos] + Dir(pos,npos);
                pq.push(MP(d[npos], npos));
            }
        }
    }
}

void update(string ans, int res) {
    int pos = 0;
    REP(i, res) {
        int npos = move(pos, ans[i]);
        pass[pos][npos] = -1;
        pass[npos][pos] = -1;
        pos = npos;
    }
    int npos = move(pos, ans[res]);
    if (pass[pos][npos] == -1)return;
    pass[pos][npos] += 100 - p;
    pass[npos][pos] = pass[pos][npos];
}

signed main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(15);
    cerr << fixed << setprecision(15);
    t_start = chrono::system_clock::now();

    get_time();
    cin >> H >> W >> p;

    grid = V<Cell>(H * W);
    pass = VV<int>(H * W, V<int>(H * W));
    REP(x, H) {
        REP(y, W) {
            V<int> a;
            REP(k, 4) {
                int nx = x + x_vec[k];
                int ny = y + y_vec[k];
                if (nx < 0 || nx >= H || ny < 0 || ny >= W)continue;
                a.push_back(Pos(nx, ny));
            }
            shuffle(ALL(a),rng);
            grid[Pos(x, y)].around4 = a;
        }
    }

    while (true) {
        string ans = findPath();
        cerr << ans << endl;
        cout << ans << endl;
        cout.flush();
        int res;
        cin >> res;
        if (res == -1)break;
        update(ans, res);
    }

    cerr << "time:  " << int(t_diff) << " ms" << endl;
    //cerr << "score: " << score << endl;
    //cerr << "last:  " << last_update << endl;
    //cerr << "cnt:   " << cnt << endl;
    //cerr << "update:" << update_cnt << endl;
    return 0;
}
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