#893380 (C++17) No.5017 Tool-assisted Shooting

提出ソース

結果

問題	No.5017 Tool-assisted Shooting
ユーザー	jabee
提出日時	2023-07-21 12:32:08
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	172 ms / 2,000 ms
コード長	16,756 bytes
コンパイル時間	5,571 ms
コンパイル使用メモリ	289,784 KB
実行使用メモリ	35,056 KB
スコア	2,616
平均クエリ数	1000.00
最終ジャッジ日時	2023-07-21 12:32:36
合計ジャッジ時間	27,027 ms
ジャッジサーバーID （参考情報）	judge13 / judge12
	純コード判定しない問題か言語

このコードへのチャレンジ
（要ログイン）

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	148 ms 34,376 KB
testcase_01	AC	150 ms 34,108 KB
testcase_02	AC	143 ms 34,476 KB
testcase_03	AC	172 ms 34,212 KB
testcase_04	AC	144 ms 34,760 KB
testcase_05	AC	144 ms 34,168 KB
testcase_06	AC	147 ms 34,744 KB
testcase_07	AC	150 ms 34,228 KB
testcase_08	AC	144 ms 34,724 KB
testcase_09	AC	144 ms 34,660 KB
testcase_10	AC	149 ms 34,664 KB
testcase_11	AC	145 ms 34,284 KB
testcase_12	AC	143 ms 35,024 KB
testcase_13	AC	143 ms 34,292 KB
testcase_14	AC	143 ms 34,404 KB
testcase_15	AC	146 ms 34,772 KB
testcase_16	AC	142 ms 34,556 KB
testcase_17	AC	147 ms 34,684 KB
testcase_18	AC	143 ms 34,740 KB
testcase_19	AC	143 ms 34,540 KB
testcase_20	AC	143 ms 34,300 KB
testcase_21	AC	147 ms 34,748 KB
testcase_22	AC	151 ms 35,056 KB
testcase_23	AC	146 ms 34,496 KB
testcase_24	AC	145 ms 34,332 KB
testcase_25	AC	144 ms 34,232 KB
testcase_26	AC	144 ms 34,676 KB
testcase_27	AC	150 ms 34,864 KB
testcase_28	AC	144 ms 34,268 KB
testcase_29	AC	142 ms 34,732 KB
testcase_30	AC	164 ms 34,940 KB
testcase_31	AC	144 ms 34,704 KB
testcase_32	AC	145 ms 34,960 KB
testcase_33	AC	143 ms 34,564 KB
testcase_34	AC	143 ms 34,868 KB
testcase_35	AC	143 ms 34,852 KB
testcase_36	AC	153 ms 34,476 KB
testcase_37	AC	145 ms 34,728 KB
testcase_38	AC	146 ms 34,740 KB
testcase_39	AC	145 ms 34,940 KB
testcase_40	AC	142 ms 34,340 KB
testcase_41	AC	144 ms 34,696 KB
testcase_42	AC	144 ms 34,240 KB
testcase_43	AC	144 ms 34,772 KB
testcase_44	AC	151 ms 34,868 KB
testcase_45	AC	142 ms 34,312 KB
testcase_46	AC	142 ms 34,736 KB
testcase_47	AC	144 ms 34,572 KB
testcase_48	AC	146 ms 34,492 KB
testcase_49	AC	147 ms 34,384 KB
testcase_50	AC	145 ms 34,244 KB
testcase_51	AC	144 ms 34,544 KB
testcase_52	AC	147 ms 34,532 KB
testcase_53	AC	144 ms 34,664 KB
testcase_54	AC	150 ms 34,448 KB
testcase_55	AC	142 ms 34,624 KB
testcase_56	AC	149 ms 34,360 KB
testcase_57	AC	143 ms 34,352 KB
testcase_58	AC	143 ms 34,772 KB
testcase_59	AC	143 ms 34,964 KB
testcase_60	AC	144 ms 34,248 KB
testcase_61	AC	142 ms 34,660 KB
testcase_62	AC	162 ms 34,560 KB
testcase_63	AC	145 ms 34,608 KB
testcase_64	AC	143 ms 34,156 KB
testcase_65	AC	147 ms 34,488 KB
testcase_66	AC	144 ms 34,328 KB
testcase_67	AC	143 ms 34,984 KB
testcase_68	AC	143 ms 34,460 KB
testcase_69	AC	145 ms 34,264 KB
testcase_70	AC	144 ms 34,172 KB
testcase_71	AC	142 ms 34,956 KB
testcase_72	AC	145 ms 34,540 KB
testcase_73	AC	148 ms 34,376 KB
testcase_74	AC	142 ms 34,364 KB
testcase_75	AC	146 ms 34,528 KB
testcase_76	AC	144 ms 34,536 KB
testcase_77	AC	144 ms 34,748 KB
testcase_78	AC	146 ms 34,884 KB
testcase_79	AC	145 ms 34,824 KB
testcase_80	AC	143 ms 34,812 KB
testcase_81	AC	144 ms 34,624 KB
testcase_82	AC	146 ms 34,632 KB
testcase_83	AC	147 ms 34,348 KB
testcase_84	AC	143 ms 34,244 KB
testcase_85	AC	142 ms 34,432 KB
testcase_86	AC	142 ms 34,032 KB
testcase_87	AC	145 ms 34,460 KB
testcase_88	AC	146 ms 34,568 KB
testcase_89	AC	143 ms 34,628 KB
testcase_90	AC	143 ms 34,924 KB
testcase_91	AC	145 ms 34,436 KB
testcase_92	AC	142 ms 34,680 KB
testcase_93	AC	147 ms 34,568 KB
testcase_94	AC	146 ms 34,800 KB
testcase_95	AC	146 ms 34,460 KB
testcase_96	AC	144 ms 34,352 KB
testcase_97	AC	144 ms 34,584 KB
testcase_98	AC	142 ms 34,088 KB
testcase_99	AC	144 ms 34,196 KB

権限があれば一括ダウンロードができます

ソースコード

raw source code

#include<bits/stdc++.h>
#include <math.h>
#include <algorithm>
#include <iostream>
#include <vector>
#include <atcoder/all>
#include <atcoder/dsu>
#include <atcoder/segtree>
#include <atcoder/lazysegtree>
#include <atcoder/modint>
#include <atcoder/scc>
#include <chrono>
#include <random>
#include <cassert>
#ifndef templete
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()
 
//#include<boost/multiprecision/cpp_int.hpp>
//using namespace boost::multiprecision;
using namespace std;
using namespace atcoder;
//using atmint = modint998244353;
using atmint = modint;
using Graph = vector<vector<int>>;
using P = pair<long long,long long>;
//#pragma GCC optimize ("-O3")
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;
template<class T>bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template<class T>bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }
 
//---------------------------------------------------------------------------------------------------
 
template<int MOD> struct ModInt {
    static const int Mod = MOD; unsigned x; ModInt() : x(0) { }
    ModInt(signed sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }
    ModInt(signed long long sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }
    int get() const { return (int)x; }
    ModInt &operator+=(ModInt that) { if ((x += that.x) >= MOD) x -= MOD; return *this; }
    ModInt &operator-=(ModInt that) { if ((x += MOD - that.x) >= MOD) x -= MOD; return *this; }
    ModInt &operator*=(ModInt that) { x = (unsigned long long)x * that.x % MOD; return *this; }
    ModInt &operator/=(ModInt that) { return *this *= that.inverse(); }
    ModInt operator+(ModInt that) const { return ModInt(*this) += that; }
    ModInt operator-(ModInt that) const { return ModInt(*this) -= that; }
    ModInt operator*(ModInt that) const { return ModInt(*this) *= that; }
    ModInt operator/(ModInt that) const { return ModInt(*this) /= that; }
    ModInt inverse() const { long long a = x, b = MOD, u = 1, v = 0;
        while (b) { long long t = a / b; a -= t * b; std::swap(a, b); u -= t * v; std::swap(u, v); }
        return ModInt(u); }
    bool operator==(ModInt that) const { return x == that.x; }
    bool operator!=(ModInt that) const { return x != that.x; }
    ModInt operator-() const { ModInt t; t.x = x == 0 ? 0 : Mod - x; return t; }
};
template<int MOD> ostream& operator<<(ostream& st, const ModInt<MOD> a) { st << a.get(); return st; };
template<int MOD> ModInt<MOD> operator^(ModInt<MOD> a, unsigned long long k) {
    ModInt<MOD> r = 1; while (k) { if (k & 1) r *= a; a *= a; k >>= 1; } return r; }
template<typename T, int FAC_MAX> struct Comb { vector<T> fac, ifac;
    Comb(){fac.resize(FAC_MAX,1);ifac.resize(FAC_MAX,1);rep(i,1,FAC_MAX)fac[i]=fac[i-1]*i;
        ifac[FAC_MAX-1]=T(1)/fac[FAC_MAX-1];rrep(i,FAC_MAX-2,1)ifac[i]=ifac[i+1]*T(i+1);}
    T aPb(int a, int b) { if (b < 0 || a < b) return T(0); return fac[a] * ifac[a - b]; }
    T aCb(int a, int b) { if (b < 0 || a < b) return T(0); return fac[a] * ifac[a - b] * ifac[b]; }
    T nHk(int n, int k) { if (n == 0 && k == 0) return T(1); if (n <= 0 || k < 0) return 0;
        return aCb(n + k - 1, k); } // nHk = (n+k-1)Ck : n is separator
    T pairCombination(int n) {if(n%2==1)return T(0);return fac[n]*ifac[n/2]/(T(2)^(n/2));}
    // combination of paris for n com.aCb(h+w-2,h-1);
}; 
//typedef ModInt<1000000007> mint;
typedef ModInt<998244353> mint; 
//typedef ModInt<1000000000> mint; 
Comb<mint, 2010101> com;
//vector dp(n+1,vector(n+1,vector<ll>(n+1,0)));
//vector dp(n+1,vector<ll>(n+1,0));
  std::random_device seed_gen;
  std::mt19937 engine(seed_gen());
string ye = "Yes"; string no = "No"; string draw = "Draw";
 
#endif // templete
//---------------------------------------------------------------------------------------------------
// 座標を保持する
struct Coord
{
    int h_;
    int sh_;
    int p_;
    Coord(const int h = 0,const int p = 0) : h_(h), sh_(h), p_(p) {}
};

// 時間を管理するクラス
class TimeKeeper
{
private:
    std::chrono::high_resolution_clock::time_point start_time_;
    int64_t time_threshold_;

public:
    // 時間制限をミリ秒単位で指定してインスタンスをつくる。
    TimeKeeper(const int64_t &time_threshold)
        : start_time_(std::chrono::high_resolution_clock::now()),
          time_threshold_(time_threshold)
    {
    }

    // インスタンス生成した時から指定した時間制限を超過したか判定する。
    bool isTimeOver() const
    {
        auto diff = std::chrono::high_resolution_clock::now() - this->start_time_;
        return std::chrono::duration_cast<std::chrono::milliseconds>(diff).count() >= time_threshold_;
    }
};

std::mt19937 mt_for_action(0);                // 行動選択用の乱数生成器を初期化
using ScoreType = int64_t;                    // ゲームの評価スコアの型を決めておく。
constexpr const ScoreType INF = 1000000000LL; // あり得ないぐらい大きなスコアの例を用意しておく

constexpr const int H = 60;   // 迷路の高さ
constexpr const int W = 25;   // 迷路の幅
constexpr int END_TURN = 1000; // ゲーム終了ターン
vector<ll>l_actions;
// 一人ゲームの例
// 1ターンに上下左右四方向のいずれかに1マスずつ進む。
// 床にあるポイントを踏むと自身のスコアとなり、床のポイントが消える。
// END_TURNの時点のスコアを高くすることが目的
class State
{
private:
    static constexpr const int dx[4] = {1, -1, 0, 0}; // 右、左、下、上への移動方向のx成分
    static constexpr const int dy[4] = {0, 0, 1, -1}; // 右、左、下、上への移動方向のy成分

public:
//    Coord board[W][H] = {};
    vector<vector<Coord>>board;
    int self_x = 12;
    int self_y = 0;
    Coord character_ = Coord();
    int game_score_ = 0;            // ゲーム上で実際に得たスコア
    ScoreType evaluated_score_ = 0; // 探索上で評価したスコア
    char first_action_ = 'S';         // 探索木のルートノードで最初に選択した行動
    int level = 1;
    int damage = 0;
    int update_turn = 0;
    string str = "";
    int input_n = 0;
    int live = 0;
    State() {}
    State(ll make) {
      live = 1;
      board.resize(W);
      rep(i,0,W)board[i].resize(H);
    }
    int turn_ = 0;          // 現在のターン
  
    bool check_death(){
        bool res = false;
        if(board[self_x][self_y].h_ >= 1)res = true;
        return res;
    }

    void deki_move(){
        rep(y,0,H-1)rep(x,0,W){
            board[x][y] = board[x][y+1];
        }
        rep(x,0,W){
            board[x][H-1].h_ = 0;
            board[x][H-1].p_ = 0;
        }
        if(check_death())live = 0;
    }

    void atack(){
        if(live == 0)return;
        rep(y,1,H-1){
            if(board[self_x][y].h_ >= 1){
                ll orih_ = board[self_x][y].h_;
                board[self_x][y].h_ -= (1 + level / 100);
                chmax(board[self_x][y].h_,0);
                ll nxth_ = board[self_x][y].h_;
                damage += nxth_ + orih_;
                update_turn = turn_;
                if(board[self_x][y].h_ <= 0){
                    level += board[self_x][y].p_;
                    game_score_ += board[self_x][y].sh_;
                }
                break;
            }
        }
    }
    void input(int real){
        deki_move();
        if(check_death())live = 0;
      if(real == 1){
        ll n;
            cin >> n;
            input_n = n;
            if(n == -1)return;
            rep(i,0,n){
                ll h,p,x;
                cin >> h >> p >> x;
                board[x][H-1].h_ = h;
                board[x][H-1].p_ = p; 
            }
      }
    }

    // [どのゲームでも実装する] : ゲームの終了判定
    bool isDone()
    {
        bool res = false;
        if(this->turn_ >= END_TURN)res = true;
        if(check_death())res = true;
        if(input_n == -1)res = true;
        return res;
    }
    // [どのゲームでも実装する] : 探索用の盤面評価をする
    void evaluateScore()
    {
        this->evaluated_score_ = this->game_score_; // 簡単のため、まずはゲームスコアをそのまま盤面の評価とする
    }

    void advance(const char action)
    {
        if(action == 'R' && self_x != W - 1)self_x++;
        if(action == 'L' && self_x != 0)self_x--;
        if(check_death())live = 0;
        atack();
        this->turn_++;
        
    }
    /*
    // [どのゲームでも実装する] : 指定したactionでゲームを1ターン進める
    void advance(const char action, int real)
    {
        rep(y,0,H-1)rep(x,0,W){
            board[x][y] = board[x][y+1];
        }
        rep(x,0,W){
            board[x][H-1].h_ = 0;
            board[x][H-1].p_ = 0;
        }
        str += action;
        if(real == 1){
          //  cerr << "str add" << action << endl;
            ll n;
            cin >> n;
            input_n = n;
            if(input_n == -1){
                this->turn_++;
                return;
            }
            rep(i,0,n){
                ll h,p,x;
                cin >> h >> p >> x;
                board[x][H-1].h_ = h;
                board[x][H-1].p_ = p; 
            }
        }else{
        //    cerr << "kari advance" << action << endl;
        }
        if(action == 'R')self_x++;
        if(action == 'L')self_x--;
        rep(y,1,H-1){
            if(board[self_x][y].h_ >= 1){
                board[self_x][y].h_ -= (1 + level / 100);
                if(board[self_x][y].h_ <= 0){
                    level += board[self_x][y].p_;
                    game_score_ += board[self_x][y].sh_;
                }
                break;
            }
        }
            this->turn_++;
    }
    */

    // [どのゲームでも実装する] : 現在の状況でプレイヤーが可能な行動を全て取得する
    std::vector<char> legalActions() const
    {
        std::vector<char> actions = {};
        if(self_x != 0)actions.push_back('L');
        actions.push_back('S');
        if(self_x != W-1)actions.push_back('R');
        return actions;
    }

};

// [どのゲームでも実装する] : 探索時のソート用に評価を比較する
bool operator<(const State &state_1, const State &state_2)
{

    if(state_1.game_score_ != state_2.game_score_)
    {
      return state_1.game_score_ < state_2.game_score_;
    }
    if(state_1.level != state_2.level)
    {
      return state_1.level < state_2.level;
    }  
      if(state_1.live != state_2.live)
    {
      return state_1.live < state_2.live;
    }
    return state_1.damage < state_2.damage;
}

using State = State;

// ビーム幅と制限時間(ms)を指定してビームサーチで行動を決定する
char beamSearchActionWithTimeThreshold(
    const State &state,
    const int beam_width,
    const int64_t time_threshold)
{
    auto time_keeper = TimeKeeper(time_threshold);
    auto legal_actions = state.legalActions();
    std::priority_queue<State> now_beam;
    State best_state = state;
    State dead_state;
    dead_state.live = 0;
    ll beamH = 10;
    vector<vector<State>>beam_vv(beamH+1);
    vector<vector<ll>>score_vv(beamH+1);
    rep(i,0,beamH+1)beam_vv[i].resize(W);
    rep(i,0,beamH+1)score_vv[i].resize(W,-1);
    score_vv[0][state.self_x] = 0;
    beam_vv[0][state.self_x] = state;
  //  cerr << "test" << endl;
    for (int t = 0; t < beamH; t++)
    {
       if (time_keeper.isTimeOver())
            {
                return best_state.first_action_;
            }
      for (int x = 0; x < W; x++)
      {
        
        if (time_keeper.isTimeOver())
            {
                return best_state.first_action_;
            }
        if(score_vv[t][x] == -1)continue;
    //    cerr << t << " " << x << endl;
            State now_state = beam_vv[t][x];
            auto legal_actions = now_state.legalActions();
            for (const auto &action : legal_actions)
            {
                State next_state = now_state;
                next_state.advance(action);
                next_state.input(0);
                next_state.evaluateScore();
           //     cerr << next_state.damage << " " << next_state.self_x << " "  << t << " " << x << endl;
                if (t == 0)
                    next_state.first_action_ = action;
              
                chmax(best_state,next_state);
                best_state = next_state;
                if(score_vv[t+1][next_state.self_x] == -1){
                  score_vv[t+1][next_state.self_x] = 0;
                  beam_vv[t+1][next_state.self_x] = next_state;
                }else{
                  //re の原因
                 // if(t + 1 <= beamH && next_state.self_x >= 0 && next_state.self_x < W)chmax(beam_vv[t+1][next_state.self_x],next_state);
                 chmax(beam_vv[t+1][next_state.self_x],next_state);
                
                }
            }      
      }
    }
    
    return best_state.first_action_;
}

// ビーム幅と制限時間(ms)を指定してビームサーチで行動を決定する
char GreedySearchActionWithTimeThreshold(
    const State &state,
    const int beam_width,
    const int64_t time_threshold)
{
    auto time_keeper = TimeKeeper(time_threshold);
    auto legal_actions = state.legalActions();
    std::priority_queue<State> now_beam;
    State best_state = state;
    char action = 'S';
    char max_action = 'S';
    best_state.advance(action);
    best_state.first_action_ = action;
    best_state.input(0);
    best_state.evaluateScore();
  
    action = 'L';
    State next_state;
    next_state = state;
    while(next_state.self_x != 0){
      next_state.advance(action);
      next_state.first_action_ = action;
      next_state.input(0);
      next_state.evaluateScore();
      if(chmax(best_state,next_state))max_action = action;
    }
    action = 'R';
    next_state = state;
    while(next_state.self_x != W-1){
      next_state.advance(action);
      next_state.first_action_ = action;
      next_state.input(0);
      next_state.evaluateScore();
      if(chmax(best_state,next_state))max_action = action;
    }
  
    return max_action;

    /*
    State dead_state;
    dead_state.live = 0;
    
    ll beamH = 10;
    vector<vector<State>>beam_vv(beamH+1);
    vector<vector<ll>>score_vv(beamH+1);
    rep(i,0,beamH+1)beam_vv[i].resize(W);
    rep(i,0,beamH+1)score_vv[i].resize(W,-1);
    score_vv[0][state.self_x] = 0;
    beam_vv[0][state.self_x] = state;
  //  cerr << "test" << endl;
    for (int t = 0; t < beamH; t++)
    {
       if (time_keeper.isTimeOver())
            {
                return best_state.first_action_;
            }
      for (int x = 0; x < W; x++)
      {
        
        if (time_keeper.isTimeOver())
            {
                return best_state.first_action_;
            }
        if(score_vv[t][x] == -1)continue;
    //    cerr << t << " " << x << endl;
            State now_state = beam_vv[t][x];
            auto legal_actions = now_state.legalActions();
            for (const auto &action : legal_actions)
            {
                State next_state = now_state;
                next_state.advance(action);
                next_state.input(0);
                next_state.evaluateScore();
           //     cerr << next_state.damage << " " << next_state.self_x << " "  << t << " " << x << endl;
                if (t == 0)
                    next_state.first_action_ = action;
              
                chmax(best_state,next_state);
                best_state = next_state;
                if(score_vv[t+1][next_state.self_x] == -1){
                  score_vv[t+1][next_state.self_x] = 0;
                  beam_vv[t+1][next_state.self_x] = next_state;
                }else{
                  //re の原因
                 // if(t + 1 <= beamH && next_state.self_x >= 0 && next_state.self_x < W)chmax(beam_vv[t+1][next_state.self_x],next_state);
                 chmax(beam_vv[t+1][next_state.self_x],next_state);
                
                }
            }      
      }
    }
    
    return best_state.first_action_;
    */
}

void _main() {
  State state(1);
  while (!state.isDone())
  {
    state.input(1);
    //cerr << "input correct" << endl;
    if(state.isDone())break;
    char next_action = GreedySearchActionWithTimeThreshold(state,  3,  1);
    state.advance(next_action);
    cout << next_action << endl;
  }
}

yukicoder

結果

テストケース

ソースコード