Submission #1039698

#	Time	Username	Problem	Language	Result	Execution time	Memory
1039698		tamir1	Exhibition (JOI19_ho_t2)	C++17	100 / 100	120 ms	4652 KiB

joi2019_ho_t2

#include<bits/stdc++.h>
#define ff first
#define ss second
using namespace std;
int n,m,c[100005],i,j,ans;
pair<int,int> p[100005];
bool cmp(pair<int,int> a,pair<int,int> b){
	if(a.ss==b.ss) return a.ff<b.ff;
	return a.ss<b.ss;
}
int main(){
	cin >> n >> m;
	for(i=1;i<=n;i++){
		cin >> p[i].ff >> p[i].ss;
	}
	for(i=1;i<=m;i++){
		cin >> c[i];
	}
	sort(p+1,p+n+1,cmp);
	sort(c+1,c+m+1);
	j=n;
	for(i=m;i>=1;i--){
		while(c[i]<p[j].ff) j--;
		if(j>0) ans++;
		else break;
		j--;
	}
	cout << ans;
}

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