제출 #374895

#제출 시각아이디문제언어결과실행 시간메모리
374895peijarJust Long Neckties (JOI20_ho_t1)C++17
9 / 100
86 ms12140 KiB
#include <bits/stdc++.h>
#define int long long
using namespace std;

/*
 * Si prend plus petit : cout = 0
 * sinon cout > 0
 * Si N de chaque côté :
 * a_1 <= ... <= a_n
 * b_1 <= ... <= b_n
 * Si b_1 <= a_1 : mieux de mettre avec a_1
 * Sinon b_1 > a_1 : 
 * SI on met a_1 avec b_i, i > 1 et b_1 avec j, j > 1
 * cout : max(bi - a1, max(b1 - aj, 0))
 * S max(bi-aj, 0) = 0 : mieux echanger
 * Tri par ordre croissant !
*/

const int nbFeuilles = 1 << 17;
int curCost[2 * nbFeuilles];

void maj(int pos, int val)
{
	pos += nbFeuilles;
	curCost[pos] = val;
	while (pos > 1)
	{
		pos /= 2;
		curCost[pos] = max(curCost[2*pos], curCost[2*pos+1]);
	}
}

signed main(void)
{
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

	int N;
	cin >> N;
	vector<pair<int, int>> A(N+1);
	vector<int>  B(N);
	for (int i(0); i <= N; ++i)
	{
		cin >> A[i].first;
		A[i].second = i;
	}
	for (auto &v : B) cin >> v;
	sort(A.begin(), A.end());
	sort(B.begin(), B.end());
	for (int i(0); i < N; ++i)
		curCost[i + nbFeuilles] = A[i+1].first - B[i];
	for (int i(nbFeuilles-1); i >= 1; --i)
		curCost[i] = max(curCost[2*i], curCost[2*i+1]);
	vector<int> sol(N+1);
	sol[A[0].second] = max(0LL, curCost[1]);
	for (int i(0); i < N; ++i)
	{
		maj(i, A[i].first - B[i]);
		sol[A[i+1].second] = max(0LL, curCost[1]);
	}

	for (auto v: sol)
		cout << v<< ' ';
	cout << endl;
}
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