Submission #1208152

#	Time	Username	Problem	Language	Result	Execution time	Memory
1208152		algoproclub	Exhibition (JOI19_ho_t2)	C++20	100 / 100	82 ms	1452 KiB

joi2019_ho_t2

// UUID: 9babfc7c-ef7b-47b7-b999-09fff53d30b5
#include <bits/stdc++.h>
using namespace std;

typedef pair<int, int> pii;

int main() {
	int n, m;
	cin >> n >> m;

	vector<pii> kep(n);
	for(auto &x : kep){
		cin >> x.first >> x.second;
	}

	vector<int> keret(m);
	for(int &x : keret){
		cin >> x;
	}

	sort(kep.begin(), kep.end(), [&](pii a, pii b){
		if(a.second == b.second){
			return a.first < b.first;
		}
		return a.second < b.second;
	});

	sort(keret.begin(), keret.end());

	int ind = m - 1;
	for(int i = n - 1; i >= 0; i--){
		if(kep[i].first <= keret[ind]){
			ind--;
		}

		if(ind < 0){
			break;
		}
	}

	cout << m - ind - 1 << "\n";
}

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50