Submission #850609

#	Time	Username	Problem	Language	Result	Execution time	Memory
850609		willychan	Exhibition (JOI19_ho_t2)	C++14	50 / 100	1022 ms	4672 KiB

joi2019_ho_t2

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
//#include<bits/extc++.h>
//__gnu_pbds


struct painting{
	int v;
	int s;
};

int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	int n,m;cin>>n>>m;
	vector<painting> arr(n);
	for(int i=0;i<n;i++) cin>>arr[i].s>>arr[i].v;
	sort(arr.begin(),arr.end(),[&](const painting &a,const painting &b){return (a.v==b.v)?(a.s<b.s):(a.v<b.v);});
	vector<int> frame(m);
	for(int i=0;i<m;i++) cin>>frame[i];
	sort(frame.begin(),frame.end());
	int bestframe[m+1]={0};
	for(int i=0;i<n;i++){
		int k = lower_bound(frame.begin(),frame.end(),arr[i].s)-frame.begin();
		k++;
		for(int j=m;j>=k;j--){
			bestframe[j] = max(bestframe[j-1]+1,bestframe[j]);
		}
	}
	cout<<bestframe[m]<<"\n";
	


	return 0;
}

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