#678851 (C++17) No.1606 Stuffed Animals Keeper

提出ソース

結果

問題	No.1606 Stuffed Animals Keeper
ユーザー	haruki_K
提出日時	2021-07-16 22:05:51
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	463 ms / 3,000 ms
コード長	6,056 bytes
コンパイル時間	2,456 ms
コンパイル使用メモリ	213,640 KB
実行使用メモリ	394,752 KB
最終ジャッジ日時	2024-07-06 09:18:57
合計ジャッジ時間	20,274 ms
ジャッジサーバーID （参考情報）	judge1 / judge4

このコードへのチャレンジ
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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	2 ms 6,812 KB
testcase_01	AC	2 ms 6,940 KB
testcase_02	AC	2 ms 6,944 KB
testcase_03	AC	267 ms 240,128 KB
testcase_04	AC	327 ms 300,032 KB
testcase_05	AC	55 ms 53,888 KB
testcase_06	AC	110 ms 100,352 KB
testcase_07	AC	227 ms 210,688 KB
testcase_08	AC	204 ms 191,360 KB
testcase_09	AC	87 ms 80,640 KB
testcase_10	AC	46 ms 44,928 KB
testcase_11	AC	21 ms 21,120 KB
testcase_12	AC	109 ms 98,688 KB
testcase_13	AC	399 ms 394,624 KB
testcase_14	AC	391 ms 394,752 KB
testcase_15	AC	391 ms 394,752 KB
testcase_16	AC	428 ms 394,752 KB
testcase_17	AC	431 ms 394,624 KB
testcase_18	AC	431 ms 394,752 KB
testcase_19	AC	429 ms 394,752 KB
testcase_20	AC	431 ms 394,624 KB
testcase_21	AC	460 ms 394,752 KB
testcase_22	AC	460 ms 394,752 KB
testcase_23	AC	459 ms 394,752 KB
testcase_24	AC	458 ms 394,624 KB
testcase_25	AC	463 ms 394,624 KB
testcase_26	AC	457 ms 394,752 KB
testcase_27	AC	461 ms 394,752 KB
testcase_28	AC	457 ms 394,624 KB
testcase_29	AC	459 ms 394,752 KB
testcase_30	AC	453 ms 394,752 KB
testcase_31	AC	443 ms 394,624 KB
testcase_32	AC	393 ms 394,752 KB
testcase_33	AC	441 ms 394,624 KB
testcase_34	AC	396 ms 394,752 KB
testcase_35	AC	451 ms 394,752 KB
testcase_36	AC	443 ms 394,752 KB
testcase_37	AC	435 ms 394,624 KB
testcase_38	AC	431 ms 394,752 KB
testcase_39	AC	390 ms 394,752 KB
testcase_40	AC	394 ms 394,752 KB
testcase_41	AC	387 ms 394,752 KB
testcase_42	AC	386 ms 394,752 KB
testcase_43	AC	398 ms 394,752 KB
testcase_44	AC	400 ms 394,752 KB
testcase_45	AC	400 ms 394,752 KB
testcase_46	AC	401 ms 394,752 KB
testcase_47	AC	402 ms 394,752 KB
testcase_48	AC	2 ms 6,940 KB
testcase_49	AC	2 ms 6,944 KB
testcase_50	AC	2 ms 6,940 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 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 fst first
#define snd second
template <class A, class B> constexpr auto mp(A &&a, B &&b) { return make_pair(forward<A>(a), forward<B>(b)); }
template <class... T> constexpr auto mt(T&&... x) { return make_tuple(forward<T>(x)...); }
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 > (T)y) { x = (T)y; return true; } return false; }
template <class T, class U> constexpr bool chmax(T& x, U const& y) { if (x < (T)y) { x = (T)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); }
constexpr int64_t mod(int64_t x, int64_t m) { assert(m > 0); return (x %= m) < 0 ? x+m : x; }
constexpr int64_t div_floor(int64_t x, int64_t y) { assert(y != 0); return x/y - ((x^y) < 0 and x%y); }
constexpr int64_t div_ceil(int64_t x, int64_t y) { assert(y != 0); return x/y + ((x^y) > 0 and x%y); }
constexpr int dx[] = { 1, 0, -1, 0, 1, -1, -1, 1 };
constexpr int dy[] = { 0, 1, 0, -1, 1, 1, -1, -1 };
constexpr int popcnt(ll x) { return __builtin_popcountll(x); }
mt19937_64 seed_{random_device{}()};
template <class Int> Int rand(Int a, Int b) { return uniform_int_distribution<Int>(a, b)(seed_); }
i64 irand(i64 a, i64 b) { return rand<i64>(a, b); } // [a, b]
u64 urand(u64 a, u64 b) { return rand<u64>(a, b); } //
template <class It> void shuffle(It l, It r) { shuffle(l, r, seed_); }
template <class T> vector<T> &operator--(vector<T> &v) { for (T &x : v) --x; return v; }
template <class T> vector<T> &operator++(vector<T> &v) { for (T &x : v) ++x; return v; }
// <<<

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

    auto const inf = inf_<int16_t>;
    auto dp = make_v<int16_t, 3>(3, n+1, 2*n+1, inf);
    dp[2][0][n] = 0;
    rep (i, n) rep (j, 3) rep (k, 2*n+1) if (dp[j][i][k] < inf) {
        if (a[i] == 2) {
            chmin(dp[2][i+1][k], dp[j][i][k]);
        } else {
            if (j == 2 or j == 0) {
                int16_t nk = k - (a[i] == 1);
                if (nk >= 0) chmin(dp[0][i+1][nk], dp[j][i][k] + (a[i] == 1));
            }
            if (j == 2 or j == 1) {
                int16_t nk = k + (a[i] == 0);
                if (nk <= 2*n) chmin(dp[1][i+1][nk], dp[j][i][k] + (a[i] == 0));
            }
        }
    }

    auto mi = inf;
    rep (j, 3) chmin(mi, dp[j][n][n]);
    cout << (mi < inf ? mi/2 : -1) << '\n';

}

yukicoder

結果

テストケース

ソースコード