Submission #1277387

#	Time	Username	Problem	Language	Result	Execution time	Memory
1277387		PieArmy	Exhibition (JOI19_ho_t2)	C++20	0 / 100	1 ms	572 KiB

joi2019_ho_t2

#include<bits/stdc++.h>
typedef long long ll;
#define pb push_back
#define fr first
#define sc second
#define endl '\n'
using namespace std;

int n,m;
int siz[100023],val[100023],fra[100023];
int per[100023];

int main(){
	ios_base::sync_with_stdio(23^23);cin.tie(NULL);
	cin>>n>>m;
	for(int i=1;i<=n;i++){
		cin>>siz[i]>>val[i];
		per[i]=i;
	}
	for(int i=1;i<=m;i++){
		cin>>fra[i];
	}
	sort(fra+1,fra+m+1);
	reverse(fra+1,fra+m+1);
	sort(per+1,per+n+1,[&](const int &x,const int &y){
		return val[x]>val[y];
	});
	int ans=0;
	for(int i=1;i<=n;i++){
		int l=0,r=m;
		while(l<r){
			int mi=(l+r+1)/2;
			if(fra[mi]>=siz[per[i]])l=mi;
			else r=mi-1;
		}
		if(l-1>=ans)ans++;
	}
	cout<<ans<<endl;
}

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