Submission #987740

#	Time	Username	Problem	Language	Result	Execution time	Memory
987740		lo0ker	Advertisement 2 (JOI23_ho_t2)	C++17	10 / 100	337 ms	30800 KiB

Main

/*
	* AUTHOR : lo0ker
	* Problem : Advertisement 2
	* source : https://oj.uz/problem/view/JOI23_ho_t2
*/

#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using vi = vector<int>;
using pii = pair<int, int>;
#define pb push_back
#define all(x) begin(x), end(x)
#define sz(x) (int) (x).size()

const int MOD = 1e9+7;

int main(){
  ios_base::sync_with_stdio(false);
	cin.tie(NULL);

	int n;
  cin >> n;
  set<int> s;
  int x, e;
  for(int i = 0; i < n; i++){
    cin >> x >> e;
    s.insert(x);
  }

  cout << sz(s);
	return 0;
}

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