Submission #792029

#	Time	Username	Problem	Language	Result	Execution time	Memory
792029		WLZ	Stone Arranging 2 (JOI23_ho_t1)	C++17	100 / 100	159 ms	16700 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#ifdef DEBUG
#include "templates/debug.h"
#else
#define debug(...) 0
#endif

#define rep(i, begin, end) for (__typeof(end) i = (begin) - ((begin) > (end)); i != (end) - ((begin) > (end)); i += 1 - 2 * ((begin) > (end)))
#define eb emplace_back
#define pb push_back
#define mt make_tuple
#define mp make_pair
#define all(x) (x).begin(), (x).end()
#define SZ(x) (int) x.size()

using ll = long long;
using ull = unsigned ll;
using lll = __int128_t;
using ulll = __uint128_t;
using ld = long double;
using ii = pair<int, int>;
using vi = vector<int>;
using vll = vector<ll>;
using vii = vector<ii>;
template <class T> using mx_pq = priority_queue<T>;
template <class T> using mn_pq = priority_queue<T, vector<T>, greater<T>>;

const int INF = 0x3f3f3f3f;
const ll LINF = (ll) 1e18;
const double DINF = 1.0 / 0.0;
const double pi = acos(-1);
const double EPS = 1e-9;

void solve(int current_case);

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int t = 1;
  //cin >> t;
  for (int q = 1; q <= t; q++) solve(q);
  return 0;
}

void solve(int current_case) {
  int n;
  cin >> n;
  vi a(n + 1);
  rep(i, 0, n) cin >> a[i];
  map<int, int> last;
  vii st;
  rep(i, 0, n) {
    int prev = last.count(a[i]) ? last[a[i]] : INF;
    last[a[i]] = i;
    while (!st.empty() && prev < st.back().first) {
      last[a[st.back().first]] = st.back().second;
      st.pop_back();
    }
    st.eb(i, prev);
  }
  vi ans(n);
  rep(i, 0, SZ(st) - 1) rep(j, st[i].first, st[i + 1].first) ans[j] = a[st[i].first];
  ans[n - 1] = a[n - 1];
  for (auto &x : ans) cout << x << '\n';
}

• Subtask 1: 25 / 25
• Subtask 2: 35 / 35
• Subtask 3: 40 / 40