Submission #447457

#	Time	Username	Problem	Language	Result	Execution time	Memory
447457		fuad27	Sure Bet (CEOI17_sure)	C++14	0 / 100	1 ms	204 KiB

sure

#include<bits/stdc++.h>
using namespace std;
#define double long double
int main () {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	long long n,Ai=0,Bi=0;cin>>n;
	cerr<<n<<endl;

	double ans=0.0,sA=0.0,sB=0.0,a[n+1],b[n+1];
	for(int i=0;i<n;i++){
		cin>>a[i]>>b[i];
		cerr<<a[i]<<' '<<b[i]<<endl;
	}
	sort(a,a+n);sort(b,b+n);
	reverse(a,a+n);reverse(b,b+n);
	while(Ai<=n && Bi<=n) {
		if(sB<sA)sB+=b[Bi],Bi++;
		else sA+=a[Ai],Ai++;
		ans = max(ans,min(sA-Ai-Bi,sB-Ai-Bi));
	}
	cout.precision(4);
	cout<<fixed<<ans;
}

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