Submission #1088503

#	Time	Username	Problem	Language	Result	Execution time	Memory
1088503		4QT0R	Sure Bet (CEOI17_sure)	C++17	0 / 100	0 ms	348 KiB

sure

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

vector<double> a;
vector<double> b;

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);

	int n;
	cin >> n;
	a.resize(n);
	b.resize(n);
	for (int i = 0; i<n; i++)cin >> a[i] >> b[i];
	sort(a.begin(),a.end(),greater<double>());
	sort(b.begin(),b.end(),greater<double>());
	int ind=0;
	double ans=0,sma=0,smb=0;
	for (int i = 0; i<n; i++){
		sma+=a[i];
		while(ind<n && sma>smb+b[ind])smb+=b[ind++];
		ans=max(ans,min(sma,smb)-(double)(i+1+ind));
		if (ind<n)smb+=b[ind++];
		ans=max(ans,min(sma,smb)-(double)(i+1+ind));
	}
	cout << fixed << setprecision(4) << ans << '\n';
}

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