結果
| 問題 |
No.318 学学学学学
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-11-04 01:25:48 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 200 ms / 2,000 ms |
| コード長 | 3,935 bytes |
| コンパイル時間 | 3,375 ms |
| コンパイル使用メモリ | 286,612 KB |
| 実行使用メモリ | 18,560 KB |
| 最終ジャッジ日時 | 2025-11-04 01:25:56 |
| 合計ジャッジ時間 | 7,751 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 26 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i = 0; i< (n); ++i)
#define repi(i, a, b) for (int i = (a); i < (b); ++i)
#define all(x) (x).begin(), (x).end()
#define fore(i, a) for(auto &i:a)
using ll = long long;
using int64 = long long;
#define DEBUG(x) cerr << #x << ": "; for (auto _ : x) cerr << _ << " "; cerr << endl;
const int64 infll = (1LL << 62) - 1;
const int inf = (1 << 30) - 1;
struct IoSetup {
IoSetup() {
cin.tie(nullptr);
ios::sync_with_stdio(false);
cout << fixed << setprecision(10);
cerr << fixed << setprecision(10);
}
} iosetup;
template <typename T1, typename T2>
ostream& operator<<(ostream& os, const pair<T1, T2>& p) {
os << p.first << " " << p.second;
return os;
}
template <typename T1, typename T2>
istream& operator>>(istream& is, pair<T1, T2>& p) {
is >> p.first >> p.second;
return is;
}
template <typename T>
ostream& operator<<(ostream& os, const vector<T>& v) {
for (int i = 0; i < (int)v.size(); i++) {
os << v[i] << (i + 1 != v.size() ? " " : "");
}
return os;
}
template <typename T>
istream& operator>>(istream& is, vector<T>& v) {
for (T& in : v) is >> in;
return is;
}
template <typename T1, typename T2>
inline bool chmax(T1& a, T2 b) {
return a < b && (a = b, true);
}
template <typename T1, typename T2>
inline bool chmin(T1& a, T2 b) {
return a > b && (a = b, true);
}
template <typename T = int64>
vector<T> make_v(size_t a) {
return vector<T>(a);
}
template <typename T, typename... Ts>
auto make_v(size_t a, Ts... ts) {
return vector<decltype(make_v<T>(ts...))>(a, make_v<T>(ts...));
}
template <typename T, typename V>
typename enable_if<is_class<T>::value == 0>::type fill_v(T& t, const V& v) {
t = v;
}
template <typename T, typename V>
typename enable_if<is_class<T>::value != 0>::type fill_v(T& t, const V& v) {
for (auto& e : t) fill_v(e, v);
}
template <typename F>
struct FixPoint : F {
explicit FixPoint(F&& f) : F(std::forward<F>(f)) {}
template <typename... Args>
decltype(auto) operator()(Args&&... args) const {
return F::operator()(*this, std::forward<Args>(args)...);
}
};
template <typename F>
inline decltype(auto) MFP(F&& f) {
return FixPoint<F>{std::forward<F>(f)};
}
struct Act {
using F = ll;
static constexpr F composition(const F &f, const F &g) {return g;}
static constexpr F id() {return -1;}
};
template <typename Act>
struct DualSegmentTree {
using F = typename Act::F;
private:
int sz, height;
vector<F> lazy;
Act m;
inline void propagate(int k) {
if (lazy[k] != m.id()) {
lazy[2 * k + 0] = m.composition(lazy[2 * k + 0], lazy[k]);
lazy[2 * k + 1] = m.composition(lazy[2 * k + 1], lazy[k]);
lazy[k] = m.id();
}
}
inline void thrust(int k) {
for (int i = height; i > 0; i--) propagate(k >> i);
}
public:
DualSegmentTree(Act m, int n) : m(m) {
sz = 1;
height = 0;
while (sz < n) sz <<= 1, height++;
lazy.assign(2 * sz, m.id());
}
F get(int k) {
thrust(k += sz);
return lazy[k];
}
F operator[](int k) { return get(k); }
void apply(int a, int b, const F& f) {
thrust(a += sz);
thrust(b += sz - 1);
for (int l = a, r = b + 1; l < r; l >>= 1, r >>= 1) {
if (l & 1) lazy[l] = m.composition(lazy[l], f), ++l;
if (r & 1) --r, lazy[r] = m.composition(lazy[r], f);
}
}
};
int main(){
ll n; cin >> n;
vector<ll> a(n);rep(i, n)cin >> a[i];
Act m;
DualSegmentTree D(m, n);
rep(i, n){
D.apply(i,i+1,a[i]);
}
map<ll,ll> L, R;
rep(i, n){
if(L.count(a[i]))continue;
L[a[i]] = i;
}
rep(ii, n){
ll i = n-1-ii;
if(R.count(a[i]))continue;
R[a[i]] = i;
}
for(auto[key, l]:L){
ll r = R[key];
D.apply(l, r+1, key);
}
rep(i, n){
cout << D[i] << " ";
}
cout << "\n";
}