Submission #51700

#	Time	Username	Problem	Language	Result	Execution time	Memory
51700		tmwilliamlin168	Sure Bet (CEOI17_sure)	C++14	100 / 100	112 ms	4104 KiB

sure

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

const int mxN=1e5;
int n;
double a[mxN+1], b[mxN+1], ans, sa, sb;

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n;
	for(int i=0; i<n; ++i)
		cin >> a[i] >> b[i];
	sort(a, a+n+1);
	sort(b, b+n+1);
	for(int i1=n, i2=n; i1>=0&&i2>=0; ) {
		if(sa<sb)
			sa+=a[i1--];
		else
			sb+=b[i2--];
		ans=max(min(sa, sb)-(n-i1)-(n-i2), ans);
	}
	cout << fixed << setprecision(4) << ans;
}

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