Submission #586669

#	Time	Username	Problem	Language	Result	Execution time	Memory
586669		SeDunion	Holiday (IOI14_holiday)	C++17	24 / 100	5042 ms	4940 KiB

holiday

#include"holiday.h"
#include<algorithm>
#include<iostream>
#include<vector>
#include<set>
 
using namespace std;
using ll = long long;
 
const int N = 1e5 + 123;

int n;

#define cout if(false)cout

pair<int,int>pp[N];

int cnt[N << 2];
ll sum[N << 2];

void upd(int pos, int type, int l = 0, int r = n, int v = 1) {
	if (r - l == 1) {
		cnt[v] += type, sum[v] += type * pp[l].first;
		return;
	}
	int m = (l + r) >> 1;
	if (pos < m) upd(pos, type, l, m, v << 1);
	else upd(pos, type, m, r, v<<1|1);
	cnt[v] = cnt[v << 1] + cnt[v<<1|1];
	sum[v] = sum[v << 1] + sum[v<<1|1];
}

ll get(int &y, int l = 0, int r = n, int v = 1) {
	if (!y || !cnt[v]) return 0;
	if (cnt[v] <= y) {
		y -= cnt[v];
		return sum[v];
	}
	int m = (l + r) >> 1;
	ll res = get(y, m, r, v<<1|1);
	res += get(y, l, m, v << 1);
	return res;
}

int pos[N];

ll ans;

int start, d;

void solve(int l, int r, int opl, int opr) {
	if (l > r) return;
	int m = (l + r) >> 1;
	int opm = -1;
	cout << "---\n";
	for (int i = m ; i < opl ; ++ i) {
		upd(pos[i], 1);
		cout << "add " << i << " " << pp[pos[i]].first << endl;
	}
	int x = d - (start - m);
	ll cur = 0;
	cout << m << " " << x << " m\n";
	opm = opl;
	for (int i = opl ; i <= opr ; ++ i) {
		upd(pos[i], 1);
		cout << "add " << i << " " << pp[pos[i]].first << endl;
		int y = x - (i - m);
		if (y >= 0) {
			cout << i << " " << m << " " << y;
			ll temp = get(y);
			cout << " " << temp << endl;
			if (temp > cur) {
				opm = i;
				cur = temp;
			}
		}
	}
	for (int i = m ; i <= opr ; ++ i) {
		upd(pos[i], -1);
	}
	cout << m << " " << cur << endl;
	ans = max(ans, cur);
	solve(l, m - 1, opl, opm);
	solve(m + 1, r, opm, opr);
}

ll findMaxAttraction(int n_, int start_, int d_, int attraction[]) {
	n = n_, start = start_, d = d_;
	for (int i = 0 ; i < n ; ++ i) {
		pp[i] = {attraction[i], i};
	}
	sort(pp, pp + n);
	for (int i = 0 ; i < n ; ++ i) {
		cout << pp[i].first << " ";
	}
	cout << endl;
	for (int i = 0 ; i < n ; ++ i) {
		pos[pp[i].second] = i;
	}
	for (int _ = 0 ; _ < 2 ; ++ _) {
		cout << "\n";
		for (int i = 0 ; i < n ; ++ i) {
			cout << attraction[i] << " ";
		}
		cout << endl;
		solve(0, start, start, n - 1);
		for (int i = 0 ; i < n ; ++ i) {
			pp[i].second = n - pp[i].second - 1;
			pos[pp[i].second] = i;
		}
		reverse(attraction, attraction + n);
		start = n - start - 1;
	}
	return ans;
}

• Subtask 1: 7 / 7
• Subtask 2: 0 / 23
• Subtask 3: 17 / 17
• Subtask 4: 0 / 53