Submission #588072

#	Time	Username	Problem	Language	Result	Execution time	Memory
588072		angelo_torres	Best Place (NOI17_bestplace)	C++17	100 / 100	48 ms	5564 KiB

bestplace

#include <bits/stdc++.h>
#define f(i,j,n) for(ll i = j; i < n; ++i)
#define fr(i,j,n) for(ll i = j; i >= n; --i)
#define ff first
#define ss second
#define sz(v) (int) v.size()


using namespace std;

typedef long long ll;
typedef pair<ll,ll> pll;
typedef pair<int,int> ii;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef vector<int> vi;
typedef long double ld;

const int N = 1e5 + 20;
const int M = 2e3 + 20;
const ll inf = 1e18;

ll n,x[N],y[N],pr[N],su[N];

ll axe(vll v){
	sort(v.begin(),v.end());
	f(i,0,n) pr[i] = su[i];
	ll ct = 1;
	pr[0] = 0;
	f(i,1,n){
		pr[i] = pr[i-1] + abs(v[i]-v[i-1])*ct, ct++;
		// cout << pr[i] << endl;
	}
	su[n-1] = 0, ct = 1;
	fr(i,n-2,0){
		su[i] = su[i+1] + abs(v[i+1]-v[i])*ct, ct++; 
		// cout << su[i] << endl;
	} 
	ll mn = inf,id = 0;
	f(i,0,n){
		// cout << pr[i] << " " << su[i] << endl;
		if(pr[i]+su[i] < mn) mn = pr[i] + su[i], id = i;
	}
	return v[id];
}

void solve(){
	cin >> n;
	f(i,1,n+1) cin >> x[i] >> y[i];
	vll v = {};
	pll ans = {0,0};
	f(i,1,n+1) v.push_back(x[i]);
	ans.ff = axe(v);
	v.clear();
	f(i,1,n+1) v.push_back(y[i]);
	ans.ss = axe(v);
	cout << ans.ff << " " << ans.ss << endl;
}

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int tc = 1;
	// cin >> tc;
	while(tc--) solve();	
	return 0;
}

• Subtask 1: 3 / 3
• Subtask 2: 20 / 20
• Subtask 3: 28 / 28
• Subtask 4: 13 / 13
• Subtask 5: 17 / 17
• Subtask 6: 19 / 19