oj.uz

Submission #498376

# Submission time Handle Problem Language Result Execution time Memory
498376 2021-12-25T05:33:29 Z Nuraly_Serikbay Sure Bet (CEOI17_sure) C++14
0 / 100
 0 ms 204 KB 
#include <bits/stdc++.h>
  
#define endl "\n"
#define mp make_pair
#define pb push_back
#define F first
#define S second
#define sz size()
#define rep(i,k,n) for(int i = k ; i <= n ; ++i)
#define per(i,k,n) for(int i = k ; i >= n ; --i)
#define YOSIK() ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#define all(x) x.begin(),x.end()
#define fr(x) freopen(x".in","r",stdin),freopen(x".out","w",stdout)
#define toqta return 0
#define PERMUTE next_permutation
#define no cout<<"No"<<endl;
#define yes cout<<"Yes"<<endl;
#define a() a + 1, a + n + 1  

using namespace std;
 
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse,-fgcse-lm")
#pragma GCC optimize("-ftree-pre,-ftree-vrp")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("Ofast,no-stack-protector")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#pragma GCC optimize("unroll-loops")

   
typedef long long ll;
typedef unsigned long long ull;
typedef string S;
typedef double ld;
typedef long double lld;
  
const int N = 1e6 + 17;
const int modd = 1e9 + 7;
const ll INF = 1e18 - 19;
const int P = 37;
const ll NN = 1e7 + 17;
const ld eps = 1e-19;
const double pi = 3.141592653589793238462643383279 ;
   
 
bool sortbysec(const pair<int,int> &a, const pair<int,int> &b){
    return (a.second < b.second);
}
 
void pre (ll a) {
    cout << fixed << setprecision(a);
    return;
}

ll n;
double x[N], y[N];
double mx;
bool ok = 0;	
inline void Solution (/*Nuraly Serikbay*/) {
	cin >> n;
	for (int i = 1; i <= n; ++ i) {
		cin >> x[i] >> y[i];
	}
	sort (x + 1, x + n + 1);
	sort (y + 1, y + n + 1);
	double sum = 0, sum1 = 0;
	for (int i = 2; i <= 2 * n; ++ i) {
		sum = 0, sum1 = 0;
		double cur = i, cnt = i;
		ll j = n;
		while (cnt --) {
			sum += y[j];
			j --;
			if (sum >= cur) break;
		}
		ll jj = n;
		while (cnt --) {
			sum1 += x[jj];
			jj --;
			if (sum1 >= cur) break;
		}
		//cout << cur << ' ' << sum << ' ' << sum1 << '\n';
		if (sum1 >= cur && sum >= cur) {
			/*while (cnt --) {
				sum1 += y[jj];
				sum += x[j];
				jj --;
				j --;
			}*/
			ok = 1;
			mx = max (mx, min (sum - cur, sum1 - cur));
		}	
	}
	if (!ok) mx = 0;
	pre(4);
	cout << mx;	
	return;
}
 
 
int main () {
	YOSIK();
	Solution ();
	exit (0);
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Incorrect 0 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Incorrect 0 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Incorrect 0 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -