Submission #769319

#	Time	Username	Problem	Language	Result	Execution time	Memory
769319		tch1cherin	Stone Arranging 2 (JOI23_ho_t1)	C++17	Compilation error	0 ms	0 KiB

Main

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

int main() {
  int n;
  cin >> n;
  vector<pair<int, int>> S;
  set<int> in_stack;
  for (int i = 0; i < n; i++) {
    int x;
    cin >> x;
    if (in_stack.contains(x)) {
      while (S.back().first != x) {
        in_stack.erase(S.back().first);
        S.pop_back();
      }
    } else {
      in_stack.insert(x);
      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 << S[i].first << "\n"; 
    }
  }
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:12:18: error: 'class std::set<int>' has no member named 'contains'
   12 |     if (in_stack.contains(x)) {
      |                  ^~~~~~~~