Submission #1013613

#	Time	Username	Problem	Language	Result	Execution time	Memory
1013613		vako_p	Exhibition (JOI19_ho_t2)	C++14	100 / 100	47 ms	5812 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back

const int mxN = 1e6 + 5;
ll n,c[mxN],m;
pair<ll,ll> a[mxN];
 
int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin >> n >> m;
	for(int i = 0; i < n; i++) cin >> a[i].second >> a[i].first;
	for(int i = 0; i < m; i++) cin >> c[i];
	sort(c, c + m);
	sort(a, a + n);
	ll x = m - 1;
	ll ans = 0;
	for(int i = n - 1; i >= 0; i--){
		if(x < 0) break;
		if(c[x] >= a[i].second){
			x--;
			ans++;
		}
	}
	cout << ans;
}

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