제출 #383201

#제출 시각아이디문제언어결과실행 시간메모리
383201ritul_kr_singhExhibition (JOI19_ho_t2)C++17
100 / 100
59 ms5740 KiB
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define sp << " " <<
#define nl << "\n"

signed main(){
	cin.tie(0)->sync_with_stdio(0);
	int n, m; cin >> n >> m;
	array<int, 2> a[n];
	for(auto &i : a) cin >> i[1] >> i[0];
	int b[m];
	for(int &i : b) cin >> i;
	sort(a, a+n, greater<>());
	sort(b, b+m, greater<>());

	int j = 0, ans = 0;
	for(int i : b){
		while(j<n and a[j][1] > i) ++j;
		ans += j++<n;
	}
	cout << ans;
}
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