제출 #883007

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
883007		vjudge1	Exhibition (JOI19_ho_t2)	C++17	100 / 100	43 ms	5720 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
#define fast cin.tie(0)->sync_with_stdio(0);
#define int long long
#define inf ((int)1e18)
using namespace std;

int32_t main(){
	fast
	int n, m;
	cin >> n >> m;
	vector <pair<int,int> > arr(n);
	for(int i = 0; i < n; i++) {
		cin >> arr[i].first >> arr[i].second;
	}
	vector <int> frames(m);
	for(int i = 0; i < m; i++) {
		cin >> frames[i];
	}
	sort(arr.begin(), arr.end(), [&](pair<int,int>&a, pair<int,int>&b) {
		if(a.second == b.second) return a.first < b.first;
		return a.second < b.second;
	});
	int ans = 0;
	sort(frames.begin(), frames.end());
	for(int i = n-1; i >= 0; i--) {
		if(frames.size() == 0) break;
		int frame = frames.back();
		if(frame >= arr[i].first) {
			ans++;
			frames.pop_back();
		}
	}
	cout << ans << "\n";
}

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