#578559 (C++17) No.761 平均値ゲーム

提出ソース

結果

問題	No.761 平均値ゲーム
ユーザー	haruki_K
提出日時	2020-11-11 15:23:52
言語	C++17 (gcc 13.2.0 + boost 1.83.0)
結果	AC
実行時間	19 ms / 2,000 ms
コード長	5,169 bytes
コンパイル時間	2,233 ms
コンパイル使用メモリ	212,288 KB
実行使用メモリ	5,416 KB
最終ジャッジ日時	2023-09-30 00:33:37
合計ジャッジ時間	6,821 ms
ジャッジサーバーID （参考情報）	judge12 / judge11

このコードへのチャレンジ（β）

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	1 ms 4,380 KB
testcase_01	AC	1 ms 4,380 KB
testcase_02	AC	1 ms 4,376 KB
testcase_03	AC	2 ms 4,380 KB
testcase_04	AC	2 ms 4,380 KB
testcase_05	AC	2 ms 4,380 KB
testcase_06	AC	1 ms 4,376 KB
testcase_07	AC	2 ms 4,376 KB
testcase_08	AC	2 ms 4,380 KB
testcase_09	AC	2 ms 4,380 KB
testcase_10	AC	2 ms 4,376 KB
testcase_11	AC	2 ms 4,376 KB
testcase_12	AC	2 ms 4,376 KB
testcase_13	AC	1 ms 4,376 KB
testcase_14	AC	2 ms 4,376 KB
testcase_15	AC	2 ms 4,376 KB
testcase_16	AC	2 ms 4,376 KB
testcase_17	AC	1 ms 4,376 KB
testcase_18	AC	1 ms 4,376 KB
testcase_19	AC	1 ms 4,376 KB
testcase_20	AC	2 ms 4,380 KB
testcase_21	AC	1 ms 4,380 KB
testcase_22	AC	2 ms 4,376 KB
testcase_23	AC	1 ms 4,380 KB
testcase_24	AC	2 ms 4,376 KB
testcase_25	AC	1 ms 4,380 KB
testcase_26	AC	1 ms 4,380 KB
testcase_27	AC	2 ms 4,376 KB
testcase_28	AC	2 ms 4,376 KB
testcase_29	AC	2 ms 4,380 KB
testcase_30	AC	1 ms 4,380 KB
testcase_31	AC	2 ms 4,376 KB
testcase_32	AC	1 ms 4,376 KB
testcase_33	AC	13 ms 4,376 KB
testcase_34	AC	15 ms 4,548 KB
testcase_35	AC	3 ms 4,376 KB
testcase_36	AC	9 ms 4,380 KB
testcase_37	AC	12 ms 4,392 KB
testcase_38	AC	12 ms 4,376 KB
testcase_39	AC	15 ms 4,648 KB
testcase_40	AC	16 ms 4,820 KB
testcase_41	AC	14 ms 4,656 KB
testcase_42	AC	16 ms 4,640 KB
testcase_43	AC	4 ms 4,380 KB
testcase_44	AC	11 ms 4,380 KB
testcase_45	AC	14 ms 4,388 KB
testcase_46	AC	8 ms 4,376 KB
testcase_47	AC	9 ms 4,380 KB
testcase_48	AC	3 ms 4,380 KB
testcase_49	AC	16 ms 4,556 KB
testcase_50	AC	4 ms 4,376 KB
testcase_51	AC	3 ms 4,380 KB
testcase_52	AC	3 ms 4,376 KB
testcase_53	AC	16 ms 4,932 KB
testcase_54	AC	10 ms 4,376 KB
testcase_55	AC	17 ms 5,084 KB
testcase_56	AC	6 ms 4,376 KB
testcase_57	AC	17 ms 4,916 KB
testcase_58	AC	4 ms 4,376 KB
testcase_59	AC	14 ms 4,568 KB
testcase_60	AC	6 ms 4,376 KB
testcase_61	AC	18 ms 5,352 KB
testcase_62	AC	15 ms 4,912 KB
testcase_63	AC	4 ms 4,376 KB
testcase_64	AC	14 ms 4,700 KB
testcase_65	AC	7 ms 4,380 KB
testcase_66	AC	3 ms 4,380 KB
testcase_67	AC	6 ms 4,380 KB
testcase_68	AC	4 ms 4,376 KB
testcase_69	AC	13 ms 4,432 KB
testcase_70	AC	10 ms 4,384 KB
testcase_71	AC	5 ms 4,380 KB
testcase_72	AC	3 ms 4,376 KB
testcase_73	AC	7 ms 4,380 KB
testcase_74	AC	4 ms 4,376 KB
testcase_75	AC	9 ms 4,376 KB
testcase_76	AC	6 ms 4,376 KB
testcase_77	AC	12 ms 4,408 KB
testcase_78	AC	9 ms 4,376 KB
testcase_79	AC	5 ms 4,376 KB
testcase_80	AC	4 ms 4,380 KB
testcase_81	AC	4 ms 4,380 KB
testcase_82	AC	10 ms 4,376 KB
testcase_83	AC	18 ms 5,208 KB
testcase_84	AC	19 ms 5,352 KB
testcase_85	AC	18 ms 5,084 KB
testcase_86	AC	18 ms 4,828 KB
testcase_87	AC	18 ms 5,236 KB
testcase_88	AC	18 ms 5,148 KB
testcase_89	AC	18 ms 4,940 KB
testcase_90	AC	18 ms 5,088 KB
testcase_91	AC	19 ms 5,416 KB
testcase_92	AC	18 ms 4,912 KB
testcase_93	AC	2 ms 4,376 KB
testcase_94	AC	2 ms 4,380 KB
testcase_95	AC	15 ms 4,752 KB
testcase_96	AC	17 ms 4,564 KB
testcase_97	AC	16 ms 4,708 KB
testcase_98	AC	12 ms 4,808 KB
testcase_99	AC	17 ms 4,620 KB

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ソースコード

raw source code

// >>> TEMPLATES
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
using i32 = int32_t;
using i64 = int64_t;
using u32 = uint32_t;
using u64 = uint64_t;
#define int ll
#define double ld
#define rep(i,n) for (int i = 0; i < (int)(n); i++)
#define rep1(i,n) for (int i = 1; i <= (int)(n); i++)
#define repR(i,n) for (int i = (int)(n)-1; i >= 0; i--)
#define rep1R(i,n) for (int i = (int)(n); i >= 1; i--)
#define loop(i,a,B) for (int i = a; i B; i++)
#define loopR(i,a,B) for (int i = a; i B; i--)
#define all(x) begin(x), end(x)
#define allR(x) rbegin(x), rend(x)
#define rng(x,l,r) begin(x) + (l), begin(x) + (r)
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fst first
#define snd second
template <class Int> auto constexpr inf = numeric_limits<Int>::max()/2-1;
auto constexpr INF32 = inf<int32_t>;
auto constexpr INF64 = inf<int64_t>;
auto constexpr INF   = inf<int>;
#ifdef LOCAL
#include "debug.hpp"
#else
#define dump(...) (void)(0)
#define say(x) (void)(0)
#define debug if (0)
#endif
template <class T, class Comp> struct pque : priority_queue<T, vector<T>, Comp> {
    vector<T> &data() { return this->c; }
    void clear() { this->c.clear(); }
};
template <class T> using pque_max = pque<T, less<T>>;
template <class T> using pque_min = pque<T, greater<T>>;
template <class T, class = typename T::iterator, enable_if_t<!is_same<T, string>::value, int> = 0>
ostream& operator<<(ostream& os, T const& a) { bool f = true; for (auto const& x : a) os << (f ? "" : " ") << x, f = false; return os; }
template <class T, size_t N, enable_if_t<!is_same<T, char>::value, int> = 0>
ostream& operator<<(ostream& os, const T (&a)[N]) { bool f = true; for (auto const& x : a) os << (f ? "" : " ") << x, f = false; return os; }
template <class T, class = decltype(begin(declval<T&>())), class = typename enable_if<!is_same<T, string>::value>::type>
istream& operator>>(istream& is, T &a) { for (auto& x : a) is >> x; return is; }
template <class T, class S> ostream& operator<<(ostream& os, pair<T,S> const& p) { return os << "(" << p.first << ", " << p.second << ")"; }
template <class T, class S> istream& operator>>(istream& is, pair<T,S>& p) { return is >> p.first >> p.second; }
struct IOSetup { IOSetup() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); } } iosetup;
template <class F> struct FixPoint : private F {
    constexpr FixPoint(F&& f) : F(forward<F>(f)) {}
    template <class... T> constexpr auto operator()(T&&... x) const { return F::operator()(*this, forward<T>(x)...); }
};
struct MakeFixPoint { template <class F> constexpr auto operator|(F&& f) const { return FixPoint<F>(forward<F>(f)); } };
#define MFP MakeFixPoint()|
#define def(name, ...) auto name = MFP [&](auto &&name, __VA_ARGS__)
template <class T, size_t d> struct vec_impl {
    using type = vector<typename vec_impl<T,d-1>::type>;
    template <class... U> static type make_v(size_t n, U&&... x) { return type(n, vec_impl<T,d-1>::make_v(forward<U>(x)...)); }
};
template <class T> struct vec_impl<T,0> { using type = T; static type make_v(T const& x = {}) { return x; } };
template <class T, size_t d = 1> using vec = typename vec_impl<T,d>::type;
template <class T, size_t d = 1, class... Args> auto make_v(Args&&... args) { return vec_impl<T,d>::make_v(forward<Args>(args)...); }
template <class T> void quit(T const& x) { cout << x << endl; exit(0); }
template <class T, class U> constexpr bool chmin(T& x, U const& y) { if (x > y) { x = y; return true; } return false; }
template <class T, class U> constexpr bool chmax(T& x, U const& y) { if (x < y) { x = y; return true; } return false; }
template <class It> constexpr auto sumof(It b, It e) { return accumulate(b, e, typename iterator_traits<It>::value_type{}); }
template <class T> int sz(T const& x) { return x.size(); }
template <class C, class T> int lbd(C const& v, T const& x) { return lower_bound(begin(v), end(v), x)-begin(v); }
template <class C, class T> int ubd(C const& v, T const& x) { return upper_bound(begin(v), end(v), x)-begin(v); }
const int dx[] = { 1,0,-1,0,1,-1,-1,1 };
const int dy[] = { 0,1,0,-1,1,1,-1,-1 };
constexpr int popcnt(ll x) { return __builtin_popcountll(x); }
// [a,b]
template <class Int> Int rand(Int a, Int b) { static mt19937_64 mt{random_device{}()}; return uniform_int_distribution<Int>(a,b)(mt); }
i64 irand(i64 a, i64 b) { return rand<i64>(a,b); }
u64 urand(u64 a, u64 b) { return rand<u64>(a,b); }
// <<<

int32_t main() {
    int n; cin >> n;
    vector<int> a(n); cin >> a;

    vector<int> s(n+1);
    rep (i,n) s[i+1] = s[i] + a[i];

    map<pair<int, int>, int> memo;
    def (solve, int l, int r) -> int {
        if (memo.count(mp(l, r))) return memo[mp(l, r)];
        int &res = memo[mp(l, r)];
        res = -1;
        if (l == r) return res = 0;
        int m = partition_point(rng(a, l, r), [&](int x) {
            return x*(r-l) < s[r]-s[l];
        }) - a.begin();
        if (m < r && solve(l, m) == 0) return res = 1;
        if (l < m && solve(m, r) == 0) return res = 1;
        return res = 0;
    };

    cout << (solve(0, n) ? "First" : "Second") << endl;

}

yukicoder

結果

テストケース

ソースコード