#1018763 (C++23) No.2930 Larger Mex

提出ソース

結果

問題	No.2930 Larger Mex
ユーザー	寝癖
提出日時	2024-10-12 18:10:08
言語	C++23 (gcc 12.3.0 + boost 1.83.0)
結果	WA
実行時間	-
コード長	6,747 bytes
コンパイル時間	6,354 ms
コンパイル使用メモリ	323,212 KB
実行使用メモリ	16,896 KB
最終ジャッジ日時	2024-10-12 18:10:25
合計ジャッジ時間	14,423 ms
ジャッジサーバーID （参考情報）	judge4 / judge2

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	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	WA	-
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	WA	-
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	WA	-
testcase_39	WA	-
testcase_40	WA	-
testcase_41	WA	-
testcase_42	WA	-
testcase_43	WA	-
testcase_44	WA	-
testcase_45	WA	-
testcase_46	WA	-
testcase_47	WA	-
testcase_48	WA	-
testcase_49	WA	-
testcase_50	WA	-
testcase_51	WA	-
testcase_52	WA	-

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

raw source code

#include <bits/stdc++.h>
#include <atcoder/all>

namespace neguse {}
using namespace std;
using namespace atcoder;
using namespace neguse;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ld> vld;
typedef vector<vi> vvi;
typedef vector<vll> vvll;
typedef vector<string> vs;
typedef vector<pii> vpii;
typedef vector<pll> vpll;

#define _overload3(_1, _2, _3, name, ...) name
#define _rep(i, n) repi(i, 0, n)
#define repi(i, a, b) for (int i = int(a); i < int(b); ++i)
#define rep(...) _overload3(__VA_ARGS__, repi, _rep, )(__VA_ARGS__)
#define _rrep(i, n) rrepi(i, n - 1, -1)
#define rrepi(i, a, b) for (int i = int(a); i > int(b); --i)
#define rrep(...) _overload3(__VA_ARGS__, rrepi, _rrep)(__VA_ARGS__)
#define _each1(i, v) for (auto &i : v)
#define _each2(i, j, v) for (auto &[i, j] : v)
#define each(...) _overload3(__VA_ARGS__, _each2, _each1, )(__VA_ARGS__)

#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define SUM(x) accumulate(all(x), 0LL)
#define MAX(x) *max_element(all(x))
#define MIN(x) *min_element(all(x))
#define ACC(x, acc) partial_sum(all(x), acc.begin()+1)
#define SORT(x) sort(all(x))
#define RSORT(x) sort(rall(x))
#define REVERSE(x) reverse(all(x))

#define dump(x) cerr << #x << " = " << (x) << '\n'
#define print(x) cout << (x) << '\n'
#define yes(f) cout << ((f) ? "Yes" : "No") << '\n'

#define ge(v, x) (int)(lower_bound(all(v), x) - v.begin())
#define gt(v, x) (int)(upper_bound(all(v), x) - v.begin())
#define le(v, x) (int)(upper_bound(all(v), x) - v.begin()) - 1
#define lt(v, x) (int)(lower_bound(all(v), x) - v.begin()) - 1

template <class T> bool chmax(T &a, const T &b) { return a < b ? a = b, 1 : 0; }
template <class T> bool chmin(T &a, const T &b) { return a > b ? a = b, 1 : 0; }

ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); }
ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); }
istream &operator>>(istream &is, modint998244353 &a) { int64_t t; is >> t; a = t; return is; }
istream &operator>>(istream &is, modint1000000007 &a) { int64_t t; is >> t; a = t; return is; }

template <class S, class T> ostream &operator<<(ostream &os, const pair<S, T> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
template <class S, class T> istream &operator>>(istream &is, pair<S, T> &p) { return is >> p.first >> p.second; }
template <class T> istream &operator>>(istream &is, vector<T> &v) { for (T &x : v) is >> x; return is; }
template <class T> ostream &operator<<(ostream &os, const vector<T> &v) { for (const T &x : v) os << x << ' '; return os; }
template <class T> ostream &operator<<(ostream &os, const vector<vector<T>> &v) { for (const vector<T> &x : v) os << x << '\n'; return os; }


#include <set>
#include <cassert>
#include <iostream>

namespace neguse {

template<typename T>
class range_set {
    public:
        range_set() {
            S.insert({-inf, -inf});
            S.insert({inf, inf});
        }

        std::set<std::pair<T, T>> &get_all() { return S; }

        void insert(T l, T r) {
            auto itl = std::prev(S.upper_bound({l, inf}));
            auto itr = std::prev(S.upper_bound({r, inf}));
            if (itl->first <= l && l <= itl->second) l = itl->first;
            else itl++;
            if (itr->first <= r && r <= itr->second) r = itr->second;
            itr++;
            while (itl != itr) {
                cnt -= itl->second - itl->first;
                itl = S.erase(itl);
            }
            S.insert({l, r});
            cnt += r - l;
        }
        void insert(T x) { insert(x, x+1); }

        void erase(T l, T r) {
            auto itl = std::prev(S.upper_bound({l, inf}));
            auto itr = std::prev(S.upper_bound({r, inf}));
            if (itl->first <= l && l < itl->second) {
                if (l != itl->first) {
                    S.insert({itl->first, l});
                    cnt += l - itl->first;
                }
            } else itl++;
            if (itr->first < r && r < itr->second) {
                S.insert({r, itr->second});
                cnt += itr->second - r;
            }
            if (r != itr->first) itr++;
            while (itl != itr) {
                cnt -= itl->second - itl->first;
                itl = S.erase(itl);
            }
        }
        void erase(T x) { erase(x, x+1); }

        bool contains(T l, T r) {
            auto it = std::prev(S.upper_bound({l, inf}));
            return it->first <= l && r <= it->second;
        }
        bool contains(T x) { return contains(x, x+1); }

        T count() { return cnt; }

        T size() { return S.size() - 2; }

        std::pair<T, T> get(T x) {
            auto it = S.upper_bound({x, inf});
            it--;
            if (it->first <= x && x < it->second) return *it;
            return {-inf, -inf};
        }

        range_set<T> intersect(T l, T r) {
            range_set<T> res;
            auto itl = std::prev(S.upper_bound({l, inf}));
            auto itr = std::prev(S.upper_bound({r, inf}));
            if (l < itl->second) res.insert(std::max(l, itl->first), std::min(r, itl->second));
            while (itl++ != itr) res.insert(std::max(l, itl->first), std::min(r, itl->second));
            if (itr->first < r) res.insert(std::max(l, itr->first), std::min(r, itr->second));
            return res;
        }

        T mex(T x = 0) {
            auto [l, r] = get(x);
            if (l <= x && x < r) return r;
            return x;
        }

        void debug() {
            for (auto [l, r] : S) {
                if (l == inf || l == -inf) continue;
                std::cout << "[" << l << ", " << r << ")" << " ";
            }
            std::cout << '\n';
        }
    private:
        std::set<std::pair<T, T>> S;
        T cnt = 0, inf = std::numeric_limits<T>::max() / 2;
};

}


int main() {
    int N, M;
    cin >> N >> M;
    vi A(N);
    cin >> A;

    if (M == 0) {
        rep(i, N) cout << N+1-A[i] << " \n"[i==N-1];
        return 0;
    }

    range_set<int> rs;
    map<int, int> mp;
    deque<pii> dq;

    vector<ll> ans(N+2);
    rep(r, N) {
        dq.emplace_back(r, A[r]);
        if (mp[A[r]]++ == 0) rs.insert(A[r]);
        while (rs.mex() >= M) {
            auto [l, x] = dq.front(); dq.pop_front();
            if (--mp[x] == 0) rs.erase(x);
        }
        if (!dq.empty()) {
            int l = dq.front().first;
            ans[1]++;
            ans[r-l+2]--;
        }
    }

    rep(i, N+1) ans[i+1] += ans[i];
    rep(i, 1, N+1) ans[i] = N+1-i-ans[i];
    rep(i, 1, N+1) cout << ans[i] << " \n"[i==N];


    return 0;
}

yukicoder

結果

テストケース

ソースコード