結果
| 問題 |
No.1590 Random Shopping
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-07-08 23:24:10 |
| 言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
| 結果 |
MLE
|
| 実行時間 | - |
| コード長 | 5,891 bytes |
| コンパイル時間 | 16,577 ms |
| コンパイル使用メモリ | 229,912 KB |
| 最終ジャッジ日時 | 2025-01-22 19:27:26 |
|
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 14 TLE * 10 MLE * 1 |
コンパイルメッセージ
main.cpp:123: warning: "dbg" redefined
123 | #define dbg(x) (x)
|
main.cpp:120: note: this is the location of the previous definition
120 | #define dbg(x) (debug_h(__FILE__, __LINE__, "" #x),dbg_(x))
|
main.cpp:124: warning: "debug" redefined
124 | #define debug(...) ((void)0)
|
main.cpp:117: note: this is the location of the previous definition
117 | #define debug(...) (debug_h(__FILE__, __LINE__, "" #__VA_ARGS__),debug_(__VA_ARGS__))
|
main.cpp:126: warning: "clk" redefined
126 | #define clk(...) ((void)0)
|
main.cpp:121: note: this is the location of the previous definition
121 | #define clk(...) (cerr << __VA_ARGS__ " @ " << (clock()-clock0) <<endl,(void)0)
|
ソースコード
#pragma GCC target("avx2")
//#pragma GCC target("avx")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")
// #include<bits/stdc++.h>
// #include <array>
#include <vector>
// #include <list>
// #include <forward_list>
#include <deque>
#include <queue>
#include <stack>
// #include <bitset>
#include <unordered_map>
#include <map>
#include <unordered_set>
#include <set>
#include <algorithm>
#include <string>
#include <iostream>
#include <iomanip>
// #include <sstream>
// #include <bit>
// #include <complex>
// #include <exception>
// #include <fstream>
// #include <functional>
// #include <iosfwd>
// #include <iterator>
// #include <limits>
// #include <locale>
// #include <memory>
// #include <new>
// #include <numeric>
// #include <stdexcept>
// #include <typeinfo>
// #include <utility>
// #include <valarray>
// #include <atomic>
// #include <chrono>
// #include <condition_variable>
// #include <future>
// #include <mutex>
// #include <random>
// #include <ratio>
// #include <regex>
// #include <scoped_allocator>
// #include <system_error>
// #include <thread>
// #include <tuple>
// #include <typeindex>
// #include <type_traits>
// #include <cctype>
// #include <cerrno>
// #include <cfloat>
// #include <ciso646>
// #include <climits>
// #include <clocale>
// #include <cmath>
// #include <csetjmp>
// #include <csignal>
// #include <cstdarg>
// #include <cstddef>
// #include <cstdio>
// #include <cstdlib>
// #include <cstring>
#include <ctime>
// #include <ccomplex>
// #include <cfenv>
// #include <cinttypes>
// #include <cstdbool>
// #include <cstdint>
// #include <ctgmath>
// #include <cwchar>
// #include <cwctype>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
#define STRINGIFY(n) #n
#define TOSTRING(n) STRINGIFY(n)
using ll = long long;
using ull = unsigned long long;
template<typename T> using maxque = priority_queue<T>;
template<typename T> using minque = priority_queue<T,vector<T>,greater<T>>;
#define int ll
#define endl "\n"
#define unless(cond) if(!(cond))
#define until(cond) while(!(cond))
#define rep(i,s,e) for(ll i = (s); i < (e); ++i)
#define repR(i,s,e) for(ll i = (e)-1; (s) <= i; --i)
#define repE(i,s,e) for(ll i = (s); i <= (e); ++i)
#define repER(i,s,e) for(ll i = (e); (s) <= i; --i)
#define repSubsetR(set,super) for(ll _super=super,set = _super; 0 <= set; --set)if(set &= _super, true)
#define ALL(xs) (xs).begin(), (xs).end()
#define ALLR(xs) (xs).rbegin(), (xs).rend()
#define ALLC(xs) (xs).cbegin(), (xs).cend()
#define ALLCR(xs) (xs).crbegin(), (xs).crend()
template<typename C> void uniq(C &xs){ xs.erase(unique(ALL(xs)), xs.end()); }
template<typename C> constexpr ll len(C &&xs){ return size(forward<C>(xs)); }
ll BIT(ll n){ return 1LL<<n; }
auto clock0 = clock();
void debug_h(const char *file, signed line, const char *str_args){ cerr << file << ":" << line << ": " << str_args << " => "; }
template<class X, class... Xs> void debug_(const X &x, const Xs&... xs){ cerr << x; (void)initializer_list<int>{ (cerr << ", " << xs,0)... };cerr << endl; }void debug_(){ cerr << endl; }
#define debug(...) (debug_h(__FILE__, __LINE__, "" #__VA_ARGS__),debug_(__VA_ARGS__))
#define ASSERT(pred,...) (static_cast<bool>(pred) ? void(0) : (debug_h(__FILE__, __LINE__, "ASSERT FAIL! " #pred "; " #__VA_ARGS__),debug_(__VA_ARGS__),exit(1)))
template<class X> X &&dbg_(X &&x){ cerr<<x<<endl; return forward<X>(x); }
#define dbg(x) (debug_h(__FILE__, __LINE__, "" #x),dbg_(x))
#define clk(...) (cerr << __VA_ARGS__ " @ " << (clock()-clock0) <<endl,(void)0)
#ifndef DEBUG
#define dbg(x) (x)
#define debug(...) ((void)0)
//#define ASSERT(pred,...) ((void)0)
#define clk(...) ((void)0)
#endif
template<class C> auto operator<<(ostream &os, const C &xs) -> enable_if_t<!is_same_v<typename iterator_traits<decltype(begin(xs))>::value_type,char>,ostream&> { os<<"[ "; for(auto&&x:xs)os<<x<<", "; return os<<"]"; }
template<typename MINT, typename = internal::is_modint_t<MINT>> ostream &operator<<(ostream &out, MINT x){ return out << x.val(); }
template<typename F> struct Fix : F {
template<typename G> Fix(G &&g) : F{forward<G>(g)} {}
template<typename... Xs> decltype(auto) operator()(Xs&&... xs)const{ return F::operator()(*this, forward<Xs>(xs)...); }
};
template<typename F> Fix(F&&) -> Fix<decay_t<F>>;
template<typename T,typename U> bool chmin(T &a, U b){ if(a <= b)return false; a = b; return true; }
template<typename T,typename U> bool chmax(T &a, U b){ if(a >= b)return false; a = b; return true; }
//const signed MOD = 998244353;
const signed MOD = 1000000007; // 10^9+7
using mint = static_modint<MOD>;
// using mint = dynamic_modint<-1>; // mint::set_mod(mod);
// using mint0 = dynamic_modint<0>; // mint0::set_mod(mod);
const ll INF = BIT(60);
double solve(){
ll n;cin>>n;
vector<signed> as(n);for(auto&a:as)cin>>a;
vector<signed> rs(n);for(auto&r:rs)cin>>r;
map<multiset<signed>,double> probs;
probs[multiset<signed>()] = 1;
double e=0;
rep(i,0,n){
debug(i,rs[i]);
map<multiset<signed>,double> newprobs;
for(auto const& pair : probs){
auto rest = pair.first;
auto p = pair.second;
rest.insert(as[i]);
newprobs[rest] += p / 2;
auto it = rest.begin();
e += p / 2 * rs[i] * *it;
rest.erase(it);
newprobs[rest] += p / 2;
}
debug(e);
probs = move(newprobs);
}
return e;
}
signed main(){
cin.tie(nullptr);ios_base::sync_with_stdio(false);
cout << fixed << setprecision(15);
try{
cout << solve() << endl;
return 0;
}catch(exception& e){
cerr << e.what() << endl;
}catch(char *s){
cerr << s << endl;
}
return 1;
}