結果

問題 No.318 学学学学学
ユーザー cutmdocutmdo
提出日時 2022-08-29 05:06:22
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 239 ms / 2,000 ms
コード長 6,488 bytes
コンパイル時間 3,945 ms
コンパイル使用メモリ 277,680 KB
実行使用メモリ 16,896 KB
最終ジャッジ日時 2024-11-15 02:39:22
合計ジャッジ時間 8,541 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge3
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 13 ms
5,248 KB
testcase_01 AC 28 ms
6,016 KB
testcase_02 AC 35 ms
6,528 KB
testcase_03 AC 23 ms
5,632 KB
testcase_04 AC 31 ms
6,144 KB
testcase_05 AC 239 ms
16,896 KB
testcase_06 AC 101 ms
7,168 KB
testcase_07 AC 83 ms
6,272 KB
testcase_08 AC 68 ms
5,248 KB
testcase_09 AC 56 ms
5,248 KB
testcase_10 AC 42 ms
5,248 KB
testcase_11 AC 233 ms
16,640 KB
testcase_12 AC 134 ms
10,752 KB
testcase_13 AC 96 ms
8,448 KB
testcase_14 AC 69 ms
6,784 KB
testcase_15 AC 47 ms
5,376 KB
testcase_16 AC 27 ms
5,248 KB
testcase_17 AC 126 ms
15,872 KB
testcase_18 AC 84 ms
11,648 KB
testcase_19 AC 64 ms
7,168 KB
testcase_20 AC 23 ms
5,248 KB
testcase_21 AC 2 ms
5,248 KB
testcase_22 AC 2 ms
5,248 KB
testcase_23 AC 2 ms
5,248 KB
testcase_24 AC 2 ms
5,248 KB
testcase_25 AC 2 ms
5,248 KB
testcase_26 AC 2 ms
5,248 KB
testcase_27 AC 2 ms
5,248 KB
testcase_28 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
コンパイルメッセージ
main.cpp:134:41: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts'
  134 |     auto remove(SizeType l, SizeType r, auto& it) {
      |                                         ^~~~

ソースコード

diff # 

//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,avx512f")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <iostream>
#include <iomanip>
#include <string>
#include <cmath>
#include <algorithm>
#include <vector>
#include <set>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <list>
#include <stack>
#include <queue>
#include <bitset>
#include <numeric>
#include <cassert>
#include <memory>
#include <random>
#include <functional>
#include <complex>
#include <immintrin.h>
#include <stdexcept>
#ifdef DEBUG
#include "./CompetitiveProgrammingCpp/debug.hpp"
#include "./CompetitiveProgrammingCpp/Timer.hpp"
#include "./CompetitiveProgrammingCpp/sample.hpp"
#else
#define dump(...)
template<class T>constexpr inline auto d_val(T a, T b) { return a; }
#endif

/* macro */
#define FOR(i, b, e) for(ll i = (ll)(b); i < (ll)(e); ++i)
#define RFOR(i, b, e) for(ll i = (ll)((e)-1); i >= (ll)(b); --i)
#define REP(i, n) FOR(i, 0, (n))
#define RREP(i, n) RFOR(i, 0, (n))
#define REPC(x,c) for(const auto& x:(c))
#define REPI2(it,b,e) for(auto it = (b); it != (e); ++it)
#define REPI(it,c) REPI2(it, (c).begin(), (c).end())
#define RREPI(it,c) REPI2(it, (c).rbegin(), (c).rend())
#define REPI_ERACE2(it, b, e) for(auto it = (b); it != (e);)
#define REPI_ERACE(it, c) REPI_ERACE2(it, (c).begin(), (c).end())
#define ALL(x) (x).begin(),(x).end()
#define cauto const auto&
/* macro func */
template<class T>
inline auto sort(T& t) { std::sort(ALL(t)); }
template<class T>
inline auto rsort(T& t) { std::sort((t).rbegin(), (t).rend()); }
template<class T>
inline auto unique(T& t) { (t).erase(unique((t).begin(), (t).end()), (t).end()); }
template<class T, class S>
inline auto chmax(T& t, const S& s) { if(s > t) { t = s; return true; } return false; }
template<class T, class S>
inline auto chmin(T& t, const S& s) { if(s < t) { t = s; return true; } return false; }
inline auto BR() { std::cout << "\n"; }

/* type define */
using ll = long long;
using VS = std::vector<std::string>;
using VL = std::vector<long long>;
using VVL = std::vector<VL>;
using VVVL = std::vector<VVL>;
using VVVVL = std::vector<VVVL>;
using VVVVVL = std::vector<VVVVL>;
using VD = std::vector<double>;
template<class T>
using V = std::vector<T>;
template<class T = ll, class U = T>
using P = std::pair<T, U>;
using PAIR = P<ll>;

/* using std */
using std::cout;
constexpr char endl = '\n';
using std::cin;
using std::pair;
using std::string;
using std::stack;
using std::queue;
using std::deque;
using std::vector;
using std::list;
using std::map;
using std::unordered_map;
using std::multimap;
using std::unordered_multimap;
using std::set;
using std::unordered_set;
using std::unordered_multiset;
using std::multiset;
using std::bitset;
using std::priority_queue;

/* Initial processing  */
struct Preprocessing { Preprocessing() { std::cin.tie(0); std::ios::sync_with_stdio(0); }; }_Preprocessing;

/* Remove the source of the bug */
auto pow(signed, signed) { assert(false); }

/* define hash */
namespace std {
template <>	class hash<std::pair<ll, ll>> { public:	size_t operator()(const std::pair<ll, ll>& x) const { return hash<ll>()(1000000000 * x.first + x.second); } };
}

/* input */
template<class T> std::istream& operator >> (std::istream& is, vector<T>& vec) { for(T& x : vec) is >> x; return is; }

/* constant value */
constexpr ll MOD = 1000000007;
// constexpr ll MOD = 998244353;

//=============================================================================================


template<class ValType = long long, class SizeType = long long>
class SegmentMap {

    const SizeType n;
    std::map<SizeType, ValType> mp;

    auto add(SizeType i, ValType val, bool left = true, bool right = true) {
        auto it = std::prev(mp.upper_bound(i));
        if(right && std::next(it)->second == val) { mp.erase(std::next(it)); }
        if(left && it->second == val) { return; }
        mp.emplace(i, val);

    }

    auto remove(SizeType l, SizeType r, auto& it) {
        auto nx = std::next(it)->first;
        auto val = it->second;
        auto ret = std::next(it);
        if(l <= it->first) { ret = mp.erase(it); }
        if(r < nx - 1) { add(r + 1, val, false, true); }
        return ret;
    }

    auto remove(SizeType l, SizeType r) {
        auto it = std::prev(mp.upper_bound(l));
        while(it->first <= r) {
            it = remove(l, r, it);
        }
    }


public:

    SegmentMap(SizeType n) :n(n) {
        mp.emplace(-1, -1);
        mp.emplace(0, -2);
        mp.emplace(n, -1);
    }

    auto output() const {
        for(auto it = std::next(mp.begin()); it != std::prev(mp.end()); ++it) {
            std::cout << "[" << it->first << ", " <<
                std::next(it)->first - 1 << "] :" <<
                it->second << std::endl;
        }
    }

    auto update(SizeType l, SizeType r, ValType val) {
        if(l < 0 || r >= n) { throw std::runtime_error(""); }
        if(l > r) { throw std::runtime_error(""); }
        remove(l, r);
        add(l, val);
    }

    auto query(SizeType l, SizeType r) {
        if(l < 0 || r >= n) { throw std::runtime_error(""); }
        if(l > r) { throw std::runtime_error(""); }
        auto it = std::prev(mp.upper_bound(l));
        std::deque<std::pair<ValType, std::pair<SizeType, SizeType>>> dq;
        while(it->first <= r) {
            auto nx = std::next(it)->first;
            auto nr = std::min(nx - 1, r);
            auto nl = std::max(l, it->first);
            dq.emplace_back(it->second, std::pair{nl,nr});
            ++it;
        }
        return dq;
    }

    auto get(SizeType i) {
        auto it = std::prev(mp.upper_bound(i));
        auto nx = std::next(it)->first;
        auto nr = nx - 1;
        auto nl = it->first;
        return std::pair{it->second,std::pair{nl,nr}};
    }
};


signed main() {

    ll n;
    cin >> n;
    VL a(n);
    cin >> a;

    map<ll, PAIR> mp;
    REP(i, n) {
        if(mp.find(a[i]) == mp.end()) {
            mp.emplace(a[i], PAIR{i,i});
        } else {
            chmin(mp[a[i]].first, i);
            chmax(mp[a[i]].second, i);
        }
    }

    auto segmap = SegmentMap(n);

    for(const auto& [x, p] : mp) {
        auto [l, r] = p;
        segmap.update(l, r, x);
    }

    for(const auto& [x, p] : segmap.query(0, n - 1)) {
        auto [l, r] = p;
        FOR(_, l, r + 1) { cout << x << " "; }
    }BR();

}
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