Submission #1268262

#	Time	Username	Problem	Language	Result	Execution time	Memory
1268262		julia_08	Advertisement 2 (JOI23_ho_t2)	C++20	10 / 100	233 ms	21720 KiB

Main

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

int main(){
  cin.tie(0)->sync_with_stdio(0);

  int n; cin >> n;

  set<int> s;

  for(int i=1; i<=n; i++){
    int x, e; cin >> x >> e;
    s.insert(x);
  }

  cout << s.size() << "\n";

  return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 23
• Subtask 3: 0 / 36
• Subtask 4: 0 / 31