Submission #735884

#	Time	Username	Problem	Language	Result	Execution time	Memory
735884		JellyTheOctopus	Exhibition (JOI19_ho_t2)	C++17	0 / 100	1 ms	224 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
using namespace std;
 
#define f first
#define s second
 
int N, M;
vector<pair<int, int>> P;
vector<int> C;
 
int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	cin >> N >> M;
	P.resize(N);
	C.resize(M);
	for (int i = 0; i < N; i++) {
		cin >> P[i].s >> P[i].f;
	}
	for (int i = 0; i < M; i++) {
		cin >> C[i];
	}
	sort(P.begin(), P.end());
	sort(C.begin(), C.end());
	int curMax = INT_MAX;
	for (int i = N-1; i >= 0; i--) {
		if (P[i].s > curMax) {
			P[i].f = -1;
		}
		else {
			curMax = P[i].s;
		}
	}
	int i = 0;
	int j = 0;
	int ans = 0;
	while (i < N && j < M) {
		if (P[i].f == -1) {
			i++;
			continue;
		}
		bool flag = false;
		while (P[i].s > C[j]) {
			j++;
			if (j == M) {
				flag = true;
				break;
			}
		}
		if (flag) break;
		ans++;
		j++;
		i++;
	}
	cout << ans << "\n";
}

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