結果
| 問題 | No.318 学学学学学 |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2019-12-22 14:03:53 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.89.0) |
| 結果 |
AC
|
| 実行時間 | 214 ms / 2,000 ms |
| コード長 | 4,151 bytes |
| 記録 | |
| コンパイル時間 | 2,145 ms |
| コンパイル使用メモリ | 210,116 KB |
| 最終ジャッジ日時 | 2025-01-08 13:50:27 |
|
ジャッジサーバーID (参考情報) |
judge5 / 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>
#define LLI long long int
#define FOR(v, a, b) for(LLI v = (a); v < (b); ++v)
#define FORE(v, a, b) for(LLI v = (a); v <= (b); ++v)
#define REP(v, n) FOR(v, 0, n)
#define REPE(v, n) FORE(v, 0, n)
#define REV(v, a, b) for(LLI v = (a); v >= (b); --v)
#define ALL(x) (x).begin(), (x).end()
#define RALL(x) (x).rbegin(), (x).rend()
#define ITR(it, c) for(auto it = (c).begin(); it != (c).end(); ++it)
#define RITR(it, c) for(auto it = (c).rbegin(); it != (c).rend(); ++it)
#define EXIST(c,x) ((c).find(x) != (c).end())
#define fst first
#define snd second
#define popcount __builtin_popcount
#define UNIQ(v) (v).erase(unique(ALL(v)), (v).end())
#define bit(i) (1LL<<(i))
#ifdef DEBUG
#include <misc/C++/Debug.cpp>
#else
#define dump(...) ((void)0)
#endif
#define gcd __gcd
using namespace std;
template <class T> constexpr T lcm(T m, T n){return m/gcd(m,n)*n;}
template <typename I> void join(ostream &ost, I s, I t, string d=" "){for(auto i=s; i!=t; ++i){if(i!=s)ost<<d; ost<<*i;}ost<<endl;}
template <typename T> istream& operator>>(istream &is, vector<T> &v){for(auto &a : v) is >> a; return is;}
template <typename T, typename U> bool chmin(T &a, const U &b){return (a>b ? a=b, true : false);}
template <typename T, typename U> bool chmax(T &a, const U &b){return (a<b ? a=b, true : false);}
template <typename T, size_t N, typename U> void fill_array(T (&a)[N], const U &v){fill((U*)a, (U*)(a+N), v);}
struct Init{
Init(){
cin.tie(0);
ios::sync_with_stdio(false);
cout << fixed << setprecision(12);
cerr << fixed << setprecision(12);
}
}init;
template <typename T, typename Func>
class DualSegmentTree{
private:
const int depth, size, hsize;
const T e;
const Func f;
std::vector<T> data;
inline void propagate(int i){
if(i < hsize){
data[i << 1 | 0] = f(data[i], data[i << 1 | 0]);
data[i << 1 | 1] = f(data[i], data[i << 1 | 1]);
data[i] = e;
}
}
inline void propagate_top_down(int i){
std::vector<int> temp;
while(i > 1){
i >>= 1;
temp.push_back(i);
}
for(auto it = temp.rbegin(); it != temp.rend(); ++it){
propagate(*it);
}
}
public:
DualSegmentTree(int n, const T &e, const Func &f):
depth(n > 1 ? 32-__builtin_clz(n-1) + 1 : 1),
size((1 << depth) - 1),
hsize(size / 2 + 1),
e(e),
f(f),
data(size + 1, e)
{}
inline void update(int l, int r, const T &x){
propagate_top_down(l + hsize);
propagate_top_down(r + hsize);
int L = l + hsize;
int R = r + hsize;
while(L < R){
if(R & 1){
--R;
data[R] = f(x, data[R]);
}
if(L & 1){
data[L] = f(x, data[L]);
++L;
}
L >>= 1;
R >>= 1;
}
}
inline T get(int i){
propagate_top_down(i + hsize);
return data[i + hsize];
}
void debug(){
#ifdef DEBUG
std::cerr << "{";
for(int i = 0; i < hsize; ++i){
if(i) std::cerr << ",";
std::cerr << get(i);
}
std::cerr << "}" << std::endl;
#endif
}
};
template <typename T, typename Func>
class DualSegmentTreeRangeUpdate : public DualSegmentTree<std::pair<T, bool>, Func>{
using super = DualSegmentTree<std::pair<T, bool>, Func>;
public:
DualSegmentTreeRangeUpdate(int n, const T &e, const Func f): super(n, std::make_pair(e, false), f){}
inline void update(int l, int r, const T &val){
super::update(l, r, std::make_pair(val, true));
}
inline T get(int i){
auto val = super::get(i);
return val.first;
}
};
template <typename T>
auto make_dual_segment_tree_range_update(int size, const T &e){
auto f = [](const auto &a, const auto &b){return a.second ? a : b;};
return DualSegmentTreeRangeUpdate<T, decltype(f)>(size, e, f);
}
int main(){
int n;
while(cin >> n){
auto seg = make_dual_segment_tree_range_update(n, 0);
vector<int> a(n); cin >> a;
map<int, vector<int>> m;
REP(i,n){
m[a[i]].push_back(i);
}
for(auto &[x, p] : m){
seg.update(p.front(), p.back()+1, x);
}
vector<int> ans(n);
REP(i,n) ans[i] = seg.get(i);
join(cout, ALL(ans));
}
return 0;
}