Submission #950863

#	Time	Username	Problem	Language	Result	Execution time	Memory
950863		starchan	Exhibition (JOI19_ho_t2)	C++17	100 / 100	44 ms	5724 KiB

joi2019_ho_t2

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define in pair<int, int>
#define f first
#define s second
#define pb push_back
#define pob pop_back
#define INF (int)1e17
#define MX (int)3e5+5
#define fast() ios_base::sync_with_stdio(false); cin.tie(NULL)
signed main()
{
	fast();
	int n, m;
	cin >> n >> m;
	vector<in> vs(n+1);
	vector<int> c(m+1);
	for(int i = 1; i <= n; i++)
		cin >> vs[i].s >> vs[i].f;
	for(int i = 1; i <= m; i++)
		cin >> c[i];
	vs[0] = {INF, INF};
	c[0] = INF;
	sort(vs.rbegin(), vs.rend());
	sort(c.rbegin(), c.rend());
	int cnt = 0;
	int l = 1;
	for(int r = 1; r <= m; r++)
	{
		while((l <= n) && (vs[l].s > c[r]))
			l++;
		if(l == (n+1))
			break;
		cnt++;
		l++;
	}
	cout << cnt << "\n";
	return 0;
}	

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