Submission #498362

#	Time	Username	Problem	Language	Result	Execution time	Memory
498362		Ierus	Sure Bet (CEOI17_sure)	C++17	20 / 100	353 ms	296 KiB

sure

#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize ("unroll-loops,Ofast,O3")
#pragma GCC target("avx,avx2,fma")
#define F first
#define S second
#define sz(x) (int)x.size()
#define pb push_back
#define eb emplace_back
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define NFS ios_base::sync_with_stdio(0) , cin.tie(0) , cout.tie(0) ;
typedef long long ll;
const int E = 1e6+777;
const long long inf = 1e18+777;
const int N = 1e5+777;
const int MOD = 1e9+7;
const bool I = 1;
int n, color[N];
double a[N], b[N];
double getslow(int len = 0, int cl = -1, double cnt = 0){
	if(len > 12) return 0.0;
	if(len > 0){
		color[len] = cl;
		if(len == max(n, 12)){
			double sum1 = 0, sum2 = 0;
			for(int i = 1; i <= n; ++i){
				if(color[i] == 1) sum1 += a[i];
				else if(color[i] == 2) sum2 += b[i];
				else if(color[i] == 3) sum1 += a[i], sum2 += b[i];
			}
//			cerr << "color\n";
//			for(int i = 1; i <= n; ++i){
//				cerr << color[i] << '\n';
//			}cerr << '\n';
//			cerr << "res1: " << sum1 - cnt << " res2: " << sum2 - cnt << '\n';
			return (double)min(sum1 - cnt, sum2 - cnt);
		}
	}
	return max({getslow(len + 1, 0, cnt), getslow(len + 1, 1, cnt + 1), getslow(len + 1, 2, cnt + 1), getslow(len + 1, 3, cnt+2)});
}
int main(){
	cin >> n;
//	vector<int> a(n);
	for(int i = 1; i <= n; ++i){
		cin >> a[i] >> b[i];
//		a[i] = i;
	}
//	random_shuffle
	cout << fixed << setprecision(4) << getslow();
};

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