結果

問題 No.318 学学学学学
ユーザー nok0
提出日時 2020-09-06 12:53:31
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 298 ms / 2,000 ms
コード長 6,406 bytes
コンパイル時間 3,477 ms
コンパイル使用メモリ 207,728 KB
最終ジャッジ日時 2025-01-14 07:42:05
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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ファイルパターン 結果
sample AC * 3
other AC * 26
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: In function ‘void scan(char*)’:
main.cpp:50:28: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   50 | void scan(char a[]) { scanf("%s", a); }
      |                       ~~~~~^~~~~~~~~

ソースコード

diff #
プレゼンテーションモードにする

#include<bits/stdc++.h>
using namespace std;
#pragma region Macros
#define ll long long
#define ld long double
#define FOR(i,l,r) for(int i=(l);i<(r);++i)
#define REP(i,n) FOR(i,0,n)
#define REPS(i,n) FOR(i,1,n+1)
#define RFOR(i,l,r) for(int i=(l);i>=(r);--i)
#define RREP(i,n) RFOR(i,n-1,0)
#define RREPS(i,n) RFOR(i,n,1)
#define pb push_back
#define eb emplace_back
#define SZ(x) ((ll)(x).size())
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
template<class T = ll> using V = vector<T>;
template<class T = ll> using VV = V<V<T>>;
using P = pair<ll, ll>;
#define VEC(type, name, size)\
    V<type> name(size);\
    IN(name)
#define VVEC(type, name, h, w)\
    VV<type> name(h, V<type>(w));\
    IN(name)
#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 CHAR(...)\
    char __VA_ARGS__;\
    IN(__VA_ARGS__)
#define DOUBLE(...)\
    DOUBLE __VA_ARGS__;\
    IN(__VA_ARGS__)
#define LD(...)\
    LD __VA_ARGS__;\
    IN(__VA_ARGS__)
template <class T> void scan(T a) { cin >> a; }
void scan(int &a) { cin >> a; }
void scan(long long &a) { cin >> a; }
void scan(char &a) { cin >> a; }
void scan(double &a) { cin >> a; }
void scan(long double &a) { cin >> a; }
void scan(char a[]) { scanf("%s", a); }
void scan(string &a) { cin >> a; }
template <class T> void scan(V<T> &);
template <class T, class L> void scan(pair<T, L> &);
template <class T> void scan(V<T> &a) { for(auto &i : a) scan(i); }
template <class T, class L> void scan(pair<T, L> &p){ scan(p.first); scan(p.second); }
template <class T> void scan(T &a) { cin >> a; }
void IN() {}
template <class Head, class... Tail> void IN(Head &head, Tail &... tail) { scan(head); IN(tail...); }
template <class T> inline void print(T x){ cout << x << '\n';}
struct inputoutputfaster{
    inputoutputfaster(){
        ios::sync_with_stdio(false);\
        cin.tie(nullptr);
        cout << fixed << setprecision(15);
    }
}inputoutputfaster_;
template <class T> V<T> press(V<T> &x){ 
    V<T> res = x;
    sort(all(res));
    res.erase(unique(all(res)), res.end());
    REP(i, SZ(x)){
        x[i] = lower_bound(all(res), x[i]) - res.begin();
    }
    return res;
}
template<class T> inline bool chmin(T& a, T b) {if (a > b) {a = b; return true; }return false; }
template<class T> inline bool chmax(T& a, T b) {if (a < b) {a = b; return true; }return false; }
inline void Yes(bool b = true) {cout << (b ? "Yes" : "No") << '\n';}
inline void YES(bool b = true) {cout << (b ? "YES" : "NO") << '\n';}
inline void err(bool b = true) {if(b) {cout << -1 << '\n'; exit(0);}}
template<class T> inline void fin(bool b = true, T e = 0) {if(b) {cout << e << '\n'; exit(0);}}
template<class T> T divup(T x, T y) {return (x+(y-1))/y;}
template <typename T> T pow(T a, long long n, T e = 1) {T ret = e; while (n) {if (n & 1) ret *= a; a *= a; n >>= 1; } return ret; }
const ll INF = 1e18;
#pragma endregion
template <class Monoid, class E>
struct LazySegmentTree{
private:
    using F = function<Monoid(Monoid, Monoid)>;
    using G = function<Monoid(Monoid, E)>;
    using H = function<E(E, E)>;
    int n, height;
    V<Monoid> Node;
    V<E> Lazy;
    F f;
    G g;
    H h;
    Monoid Monoid_unit, init_data;
    E e_unit;
    void build(V<Monoid> vec){
        Node.assign(2 * n, init_data);
        REP(i, n) Node[i + n] = vec[i];
        RREP(i, n) Node[i] = f(Node[i << 1], Node[i << 1 | 1]);
        Lazy.assign(2 * n, e_unit);
        height = 0;
        for(int i = 1; i <= n; i *= 2) height++;
    }
    void eval(int left, int right){
        left += n, right += n - 1;
        RREPS(i, height){
            int l = left >> i, r = right >> i;
            Lazy[l << 1] = h(Lazy[l << 1], Lazy[l]);
            Lazy[l << 1 | 1] = h(Lazy[l << 1 | 1], Lazy[l]);
            Node[l] = g(Node[l], Lazy[l]);
            Lazy[l] = e_unit;
            Lazy[r << 1] = h(Lazy[r << 1], Lazy[r]);
            Lazy[r << 1 | 1] = h(Lazy[r << 1 | 1], Lazy[r]);
            Node[r] = g(Node[r], Lazy[r]);
            Lazy[r] = e_unit;
        }
    }
public:
    LazySegmentTree(V<Monoid> vec, F f_, G g_, H h_, Monoid Monoid_unit_, E e_unit_)
    :n(SZ(vec)), f(f_), g(g_), h(h_), Monoid_unit(Monoid_unit_), e_unit(e_unit_){
        build(vec);
    }
    LazySegmentTree(int n_, F f_, G g_, H h_, Monoid Monoid_unit_, E e_unit_)
    :n(n_), f(f_), g(g_), h(h_), Monoid_unit(Monoid_unit_), e_unit(e_unit_), init_data(Monoid_unit_){
        build(V<Monoid>(n, init_data));
    }
    LazySegmentTree(int n_, F f_, G g_, H h_, Monoid Monoid_unit_, E e_unit_, Monoid init_data_)
    :n(n_), f(f_), g(g_), h(h_), Monoid_unit(Monoid_unit_), e_unit(e_unit_), init_data(init_data_){
        build(V<Monoid>(n, init_data));
    }
    void update(int left, int right, E operator_){
        eval(left, right);
        left += n, right += n;
        int L0 = left / (left & -left);
        int R0 = right / (right & -right);
        while(left < right) {
            if(left & 1) Lazy[left] = h(Lazy[left], operator_);
            if(right & 1) Lazy[right - 1] = h(Lazy[right - 1], operator_);
            (left += 1) >>= 1;
            right >>= 1;
        }
        left = L0;
        right = R0;
        while(left > 1) {
            left >>= 1;
            Node[left] = f(g(Node[left << 1], Lazy[left << 1]), g(Node[left << 1 | 1], Lazy[left << 1 | 1]));
            Lazy[left] = e_unit;
        }
        while(right > 1) {
            right >>= 1;
            Node[right] = f(g(Node[right << 1], Lazy[right << 1]), g(Node[right << 1 | 1], Lazy[right << 1 | 1]));
            Lazy[right] = e_unit;
        }
    }
    //半開区間[a, b)の区間クエリ
    Monoid query(int left, int right) {  
        eval(left, right);
        Monoid a = Monoid_unit, b = Monoid_unit;
        left += n, right += n;
        while(left < right){
            if(left & 1) a = f(a, g(Node[left], Lazy[left]));
            if(right & 1) b = f(g(Node[right - 1], Lazy[right - 1]), b);
            (left += 1) >>= 1;
            right >>= 1;
        }
        return f(a, b);
    }
    Monoid operator[](int i) {
        return query(i, i + 1);
    }
};
int main(){
    INT(n);
    VEC(int, a, n);
    map<int, pair<int, int>> mp;
    REP(i, n){
        if(not mp.count(a[i])) mp[a[i]] = {i, i};
        chmin(mp[a[i]].first, i);
        chmax(mp[a[i]].second, i);
    }
    auto f = [](int a, int b){return max(a, b);};
    LazySegmentTree<int, int> ST(n, f, f, f, 0, 0);
    for(auto v : mp) ST.update(v.second.first, v.second.second + 1, v.first);
    REP(i, n) cout << ST[i] << " ";
    cout << endl;
}
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