Submission #221782

#	Time	Username	Problem	Language	Result	Execution time	Memory
221782		syy	Exhibition (JOI19_ho_t2)	C++17	100 / 100	69 ms	4476 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define FOR(i, a, b) for(int i = (int)a; i <= (int)b; i++)
#define DEC(i, a, b) for(int i = (int)a; i >= (int)b; i--)
typedef pair<int, int> pi;
#define f first
#define s second
#define pb push_back
#define fastio ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)

int n, m, f[100005], ans;
pi p[100005]; //value, size

int main() {
	fastio; cin >> n >> m;
	FOR(i, 1, n) cin >> p[i].s >> p[i].f;
	FOR(i, 1, m) cin >> f[i];
	sort(p+1, p+n+1);
	sort(f+1, f+m+1);
	DEC(i, n, 1) {
		if (f[m-ans] >= p[i].s) {
			ans++;
			if (ans == m) break;
		}
	}
	cout << ans;
}

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