結果

問題 No.5017 Tool-assisted Shooting
ユーザー jabee
提出日時 2023-07-18 23:22:01
言語 C++17(gcc12)
(gcc 12.3.0 + boost 1.87.0)
結果
AC  
実行時間 1,258 ms / 2,000 ms
コード長 13,226 bytes
コンパイル時間 6,915 ms
コンパイル使用メモリ 281,756 KB
実行使用メモリ 37,124 KB
スコア 74,830
平均クエリ数 389.25
最終ジャッジ日時 2023-07-18 23:23:06
合計ジャッジ時間 64,446 ms
ジャッジサーバーID
(参考情報)
judge13 / judge11
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ファイルパターン 結果
other AC * 100
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ソースコード

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プレゼンテーションモードにする

#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
//---------------------------------------------------------------------------------------------------
//
struct Coord
{
int h_;
int sh_;
int p_;
Coord(const int h = 0,const int p = 0) : h_(h), sh_(h), p_(p) {}
};
//
class TimeKeeper
{
private:
std::chrono::high_resolution_clock::time_point start_time_;
int64_t time_threshold_;
public:
//
TimeKeeper(const int64_t &time_threshold)
: start_time_(std::chrono::high_resolution_clock::now()),
time_threshold_(time_threshold)
{
}
//
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); //
using ScoreType = int64_t; //
constexpr const ScoreType INF = 1000000000LL; //
constexpr const int H = 60; //
constexpr const int W = 25; //
constexpr int END_TURN = 1000; //
vector<ll>l_actions;
//
// 11
//
// END_TURN
class State
{
private:
static constexpr const int dx[4] = {1, -1, 0, 0}; // x
static constexpr const int dy[4] = {0, 0, 1, -1}; // y
public:
Coord board[W][H] = {}; // 1~9
int self_x = 12;
int self_y = 0;
Coord character_ = Coord();
int game_score_ = 0; //
ScoreType evaluated_score_ = 0; //
char first_action_ = 'S'; //
int level = 1;
int damage = 0;
int update_turn = 0;
string str = "";
int input_n = 0;
int live = 1;
State() {}
int turn_ = 0; //
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;
}
}
}
// [] :
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;
}
// [] :
void evaluateScore()
{
this->evaluated_score_ = this->game_score_; //
}
void advance(const char action)
{
if(action == 'R')self_x++;
if(action == 'L')self_x--;
if(check_death())live = 0;
atack();
this->turn_++;
}
/*
// [] : action1
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_++;
}
*/
// [] :
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;
}
};
// [] :
bool operator<(const State &state_1, const State &state_2)
{
if(state_1.live != state_2.live)
{
return state_1.live < state_2.live;
}
if(state_1.game_score_ != state_2.game_score_)
{
return state_1.game_score_ < state_2.game_score_;
}
if(state_1.game_score_ != state_2.game_score_)
{
return state_1.level < state_2.level;
}
return state_1.damage < state_2.damage;
}
using State = State;
// (ms)
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;
vector<vector<priority_queue<State>>>beam_vv(H+1);
rep(i,0,H+1)beam_vv[i].resize(W);
beam_vv[0][state.self_x].push(state);
for (int t = 0; t < H; 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_;
}
// cerr << t << " " << x << endl;
for (int i = 0; i < beam_width; i++)
{
if (time_keeper.isTimeOver())
{
return best_state.first_action_;
}
if (beam_vv[t][x].empty())
break;
State now_state = beam_vv[t][x].top();
beam_vv[t][x].pop();
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;
beam_vv[t+1][next_state.self_x].push(next_state);
if(chmax(best_state,next_state)){
// cerr << endl;
// cerr << next_state.damage << " " << next_state.self_x << " " << t << " " << x << endl;
// cerr << endl;
}
}
}
}
}
return best_state.first_action_;
}
void _main() {
State state;
while (!state.isDone())
{
state.input(1);
//cerr << "input correct" << endl;
if(state.isDone())break;
state.advance(beamSearchActionWithTimeThreshold(state, 3, 1));
cout << state.first_action_ << endl;
}
}
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