Submission #317841

#	Time	Username	Problem	Language	Result	Execution time	Memory
317841		nandonathaniel	Sure Bet (CEOI17_sure)	C++14	60 / 100	2033 ms	3320 KiB

sure

#include<bits/stdc++.h>
using namespace std;

double a[100005],b[100005];

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int n;
	cin >> n;
	for(int i=1;i<=n;i++){
		cin >> a[i] >> b[i];
		a[i]-=1.0;b[i]-=1.0;
	}
	sort(a+1,a+n+1);
	reverse(a+1,a+n+1);
	sort(b+1,b+n+1);
	reverse(b+1,b+n+1);
	for(int i=1;i<=n;i++){
		a[i]+=a[i-1];
		b[i]+=b[i-1];
	}
	double ans=0;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++)ans=max(ans,min(a[i]-(double)j,b[j]-(double)i));
	}
	cout << fixed << setprecision(4) << ans << '\n';
	return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 40 / 40
• Subtask 3: 0 / 40