結果

問題 No.2740 Old Maid
ユーザー siganaisiganai
提出日時 2024-04-20 13:32:18
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
WA  
実行時間 -
コード長 5,912 bytes
コンパイル時間 2,440 ms
コンパイル使用メモリ 211,524 KB
実行使用メモリ 15,816 KB
最終ジャッジ日時 2024-10-12 09:01:57
合計ジャッジ時間 9,827 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
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 WA -
testcase_01 WA -
testcase_02 WA -
testcase_03 WA -
testcase_04 WA -
testcase_05 WA -
testcase_06 WA -
testcase_07 WA -
testcase_08 WA -
testcase_09 WA -
testcase_10 AC 105 ms
14,848 KB
testcase_11 WA -
testcase_12 WA -
testcase_13 WA -
testcase_14 WA -
testcase_15 WA -
testcase_16 WA -
testcase_17 WA -
testcase_18 WA -
testcase_19 WA -
testcase_20 WA -
testcase_21 WA -
testcase_22 WA -
testcase_23 WA -
testcase_24 AC 43 ms
7,040 KB
testcase_25 WA -
testcase_26 WA -
testcase_27 WA -
testcase_28 WA -
testcase_29 WA -
testcase_30 WA -
testcase_31 WA -
testcase_32 WA -
testcase_33 WA -
testcase_34 WA -
testcase_35 WA -
testcase_36 WA -
testcase_37 WA -
testcase_38 AC 37 ms
6,656 KB
testcase_39 WA -
testcase_40 WA -
testcase_41 WA -
testcase_42 AC 2 ms
5,248 KB
testcase_43 WA -
testcase_44 WA -
testcase_45 WA -
testcase_46 WA -
testcase_47 WA -
testcase_48 WA -
testcase_49 AC 2 ms
5,248 KB
testcase_50 WA -
testcase_51 AC 2 ms
5,248 KB
testcase_52 WA -
testcase_53 WA -
testcase_54 WA -
testcase_55 AC 1 ms
5,248 KB
testcase_56 AC 2 ms
5,248 KB
testcase_57 WA -
testcase_58 WA -
testcase_59 WA -
testcase_60 AC 2 ms
5,248 KB
testcase_61 WA -
testcase_62 AC 2 ms
5,248 KB
testcase_63 AC 2 ms
5,248 KB
testcase_64 AC 2 ms
5,248 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

diff #

#line 1 "test.cpp"
//#pragma GCC target("avx,avx2")
//#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
#ifdef LOCAL
#include <debug.hpp>
#define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#define debug(...) (static_cast<void>(0))
#endif
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pll = pair<ll, ll>;
using pii = pair<int, int>;
using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using vl = vector<ll>;
using vvl = vector<vl>;
using vvvl = vector<vvl>;
using vul = vector<ull>;
using vpii = vector<pii>;
using vpll = vector<pll>;
using vs = vector<string>;
template<class T> using pq = priority_queue<T, vector<T>, greater<T>>;
#define overload4(_1, _2, _3, _4, name, ...) name
#define overload3(a,b,c,name,...) name
#define rep1(n) for (ll UNUSED_NUMBER = 0; UNUSED_NUMBER < (n); ++UNUSED_NUMBER)
#define rep2(i, n) for (ll i = 0; i < (n); ++i)
#define rep3(i, a, b) for (ll i = (a); i < (b); ++i)
#define rep4(i, a, b, c) for (ll i = (a); i < (b); i += (c))
#define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)
#define rrep1(n) for(ll i = (n) - 1;i >= 0;i--)
#define rrep2(i,n) for(ll i = (n) - 1;i >= 0;i--)
#define rrep3(i,a,b) for(ll i = (b) - 1;i >= (a);i--)
#define rrep4(i,a,b,c) for(ll i = (a) + ((b)-(a)-1) / (c) * (c);i >= (a);i -= c)
#define rrep(...) overload4(__VA_ARGS__, rrep4, rrep3, rrep2, rrep1)(__VA_ARGS__)
#define all1(i) begin(i) , end(i)
#define all2(i,a) begin(i) , begin(i) + a
#define all3(i,a,b) begin(i) + a , begin(i) + b
#define all(...) overload3(__VA_ARGS__, all3, all2, all1)(__VA_ARGS__)
#define sum(...) accumulate(all(__VA_ARGS__),0LL)
template<class T> bool chmin(T &a, const T &b){ if(a > b){ a = b; return 1; } else return 0; }
template<class T> bool chmax(T &a, const T &b){ if(a < b){ a = b; return 1; } else return 0; }
template<class T> auto min(const T& a){return *min_element(all(a));}
template<class T> auto max(const T& a){return *max_element(all(a));}
template<class... Ts> void in(Ts&... t);
#define INT(...) int __VA_ARGS__; in(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__; in(__VA_ARGS__)
#define STR(...) string __VA_ARGS__; in(__VA_ARGS__)
#define CHR(...) char __VA_ARGS__; in(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__; in(__VA_ARGS__)
#define LD(...) ld __VA_ARGS__; in(__VA_ARGS__)
#define VEC(type, name, size) vector<type> name(size); in(name)
#define VV(type, name, h, w) vector<vector<type>> name(h, vector<type>(w)); in(name)
ll intpow(ll a, ll b){ ll ans = 1; while(b){if(b & 1) ans *= a; a *= a; b /= 2;} return ans;}
ll modpow(ll a, ll b, ll p){ ll ans = 1; a %= p;if(a < 0) a += p;while(b){ if(b & 1) (ans *= a) %= p; (a *= a) %= p; b /= 2; } return ans; }
void Yes() {cout << "Yes\n";return;}
void No() {cout << "No\n";return;}
void YES() {cout << "YES\n";return;}
void NO() {cout << "NO\n";return;}
namespace IO{
#define VOID(a) decltype(void(a))
struct setting{ setting(){cin.tie(nullptr); ios::sync_with_stdio(false);fixed(cout); cout.precision(12);}} setting;
template<int I> struct P : P<I-1>{};
template<> struct P<0>{};
template<class T> void i(T& t){ i(t, P<3>{}); }
void i(vector<bool>::reference t, P<3>){ int a; i(a); t = a; }
template<class T> auto i(T& t, P<2>) -> VOID(cin >> t){ cin >> t; }
template<class T> auto i(T& t, P<1>) -> VOID(begin(t)){ for(auto&& x : t) i(x); }
template<class T, size_t... idx> void ituple(T& t, index_sequence<idx...>){in(get<idx>(t)...);}
template<class T> auto i(T& t, P<0>) -> VOID(tuple_size<T>{}){ituple(t, make_index_sequence<tuple_size<T>::value>{});} 
#undef VOID
}
#define unpack(a) (void)initializer_list<int>{(a, 0)...}
template<class... Ts> void in(Ts&... t){ unpack(IO :: i(t)); }

#undef unpack
static const double PI = 3.1415926535897932;
template <class F> struct REC {
    F f;
    REC(F &&f_) : f(forward<F>(f_)) {}
    template <class... Args> auto operator()(Args &&...args) const { return f(*this, forward<Args>(args)...); }};

constexpr int mod = 998244353;
//constexpr int mod = 1000000007;
#line 2 "library/data-structure/FenwickTree.hpp"
template <typename T>
struct FenwickTree{
    int N;
    vector<T> data;
    FenwickTree() = default;
    FenwickTree(int size) {init(size);}

    void init(int size) {
        N = size + 2;
        data.assign(N + 1,{});
    }

    T prod(int k) const {
        if (k < 0) return T{};
        T ret{};
        for (++k;k > 0;k -= k & -k) ret += data[k];
        return ret;
    }

    inline T prod(int l,int r) const {return prod(r - 1) - prod(l - 1);}

    inline T get(int k) const {return prod(k) - prod(k - 1); }

    void add(int k, T x) { 
        for(++k;k < N;k += k & -k) data[k] += x;
    }

    int lower_bound(T w) {
        if (w <= 0) return 0;
        int x = 0;
        for(int k = 1 <<__lg(N);k;k >>= 1) {
            if (x + k <= N - 1 && data[x + k] < w) {
                w -= data[x + k];
                x += k;
            }
        }
        return x;
    }
    
    int upper_bound(T w) {
        if (w < 0) return 0;
        int x = 0;
        for(int k = 1 <<__lg(N);k;k >>= 1) {
            if (x + k <= N - 1 && data[x + k] <= w) {
                w -= data[x + k];
                x += k;
            }
        }
        return x;
    }
};
#line 90 "test.cpp"
int main() {
    INT(n);
    VEC(int,p,n);
    vi ans;
    set<int> s(all(p,n-1));
    debug(s);
    vi pos(n);
    rep(i,n) pos[p[i]-1] = i;
    FenwickTree<int> fw(n);
    rep(i,n) fw.add(i,1);
    rep(i,n/2) {
        int x = *s.begin();
        debug(s);
        ans.emplace_back(x);
        int id = pos[x-1];
        int id2 = fw.lower_bound(fw.prod(id)+1);
        ans.emplace_back(p[id2]);
        s.erase(x);
        if(id2 != n - 1) s.erase(p[id2]);
        fw.add(id,-1);
        fw.add(id2,-1);
    }
    rep(i,n) cout << ans[i] << " \n"[i == n - 1];
}
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