제출 #769315

#제출 시각아이디문제언어결과실행 시간메모리
769315tch1cherinStone Arranging 2 (JOI23_ho_t1)C++17
35 / 100
40 ms1076 KiB
#include <bits/stdc++.h>
using namespace std;

int main() {
  int n;
  cin >> n;
  vector<pair<int, int>> S;
  vector<bool> in_stack(n);
  for (int i = 0; i < n; i++) {
    int x;
    cin >> x;
    if (in_stack[--x]) {
      while (!S.empty() && S.back().first != x) {
        in_stack[S.back().first] = false;
        S.pop_back();
      }
    } else {
      in_stack[x] = true;
      S.emplace_back(x, i); 
    }
  }
  S.emplace_back(-1, n);
  for (int i = 0; i < (int)S.size() - 1; i++) {
    for (int j = S[i].second; j < S[i + 1].second; j++) {
      cout << 1 + S[i].first << "\n"; 
    }
  }
}
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