Submission #878667

#	Time	Username	Problem	Language	Result	Execution time	Memory
878667		Jawad_Akbar_JJ	Sure Bet (CEOI17_sure)	C++14	0 / 100	1 ms	2396 KiB

sure

#include <iostream>
#include <vector>
#include <iomanip>
 
using namespace std;
#define ld long double 
const int N = 1e5  + 10;
vector<int> v;
ld a[N];
ld b[N];
int n;
ld ans = 0;

bool valid(int ind = n){
	if (ind==0)
		return false;
	if (v[ind]<3){
		v[ind]++;
		return true;
	}
	v[ind] = 0;
	return valid(ind-1);
}

void calculate(){
	ld sum1 = 0,sum2 = 0;
	ld cnt = 0;
	
	for (int i=1;i<=n;i++)
		if (v[i]==1 or v[i] == 3)
			sum1 += a[i],cnt++;
		else if (v[i] == 2 or v[i] == 3)
			sum2 += b[i],cnt++;
			
	ans = max(ans,min(sum1,sum2) - cnt);
}

signed main(){
	cout<<fixed<<setprecision(4);
	cin>>n;
	
	for (int i=1;i<=n;i++)
		cin>>a[i]>>b[i];
	
	for (int i=0;i<=n;i++)
		v.push_back(0);
	
	while (valid()){
		calculate();	
	}
	cout<<ans<<endl;
}

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