Submission #1031692

#	Time	Username	Problem	Language	Result	Execution time	Memory
1031692		juicy	Exhibition (JOI19_ho_t2)	C++17	100 / 100	36 ms	4444 KiB

joi2019_ho_t2

#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

int main() {
	ios::sync_with_stdio(false); cin.tie(nullptr);

	int N, M; cin >> N >> M;
	vector<array<int, 2>> A(N);
	for (int i = 0; i < N; ++i) {
		cin >> A[i][1] >> A[i][0];
	}
	sort(A.begin(), A.end());
	vector<int> C(M);
	for (int i = 0; i < M; ++i) {
		cin >> C[i];
	}
	sort(C.rbegin(), C.rend());
	int cnt = 0;
	for (int x : C) {
		while (A.size() && A.back()[1] > x) {
			A.pop_back();
		}
		if (A.size()) {
			A.pop_back();
			++cnt;
		}
	}
	cout << cnt;
	return 0;
}

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