Submission #735889

#	Time	Username	Problem	Language	Result	Execution time	Memory
735889		JellyTheOctopus	Exhibition (JOI19_ho_t2)	C++17	0 / 100	1 ms	212 KiB

joi2019_ho_t2

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

#define f first
#define s second

int N, M;

int main() {
	cin >> N >> M;
	vector<pair<int, int>> pictures(N);
	vector<int> frames(M);
	for (int i = 0; i < N; i++) {
		cin >> pictures[i].s >> pictures[i].f;
	}
	for (int i = 0; i < M; i++) {
		cin >> frames[i];
	}
	sort(pictures.begin(), pictures.end());
	sort(frames.begin(), frames.end());
	int curMin = -1;
	for (int i = 0; i < N; i++) {
		if (pictures[i].s < curMin) {
			for (int j = i; j >= 0; j--) {
				if (pictures[j].s > curMin) {
					pictures[j].f = -1;
					continue;
				}
				break;
			}
		}
		curMin = pictures[i].s;
	}
	int ans = 0;
	int i = 0;
	int j = 0;
	while (i < N && j < M) {
		if (pictures[i].f == -1) {
			i++;
			continue;
		}
		bool flag = false;
		while (frames[j] < pictures[i].s) {
			j++;
			if (j == M) {
				flag = true;
				break;
			}
		}
		if (flag) break;
		ans++;
		i++;
		j++;
	}
	cout << ans << "\n";
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 50