Submission #1336011

#TimeUsernameProblemLanguageResultExecution timeMemory
1336011gelastropodHedgehog Daniyar and Algorithms (IZhO19_sortbooks)C++20
100 / 100
1249 ms128048 KiB
#pragma GCC optimize("O3,inline")
#include <bits/stdc++.h>
using namespace std;

struct node1 {
	int s, e, m, v, lazy;
	node1* l, * r;

	node1(int _s, int _e) : s(_s), e(_e), m((_s + _e) / 2), v(0), lazy(0) {
		if (s != e)
			l = new node1(s, m),
			r = new node1(m + 1, e);
	}

	void prop() {
		if (s == e || lazy == 0) return;
		l->v += lazy;
		r->v += lazy;
		l->lazy += lazy;
		r->lazy += lazy;
		lazy = 0;
	}

	void upd(int a, int b, int x) {
		if (b < s || a > e) return;
		if (a <= s && b >= e) {
			v += x;
			lazy += x;
			return;
		}
		prop();
		l->upd(a, b, x);
		r->upd(a, b, x);
		v = max(l->v, r->v);
	}

	int qry(int a, int b) {
		if (b < s || a > e) return 0;
		if (a <= s && b >= e) return v;
		prop();
		return max(l->qry(a, b), r->qry(a, b));
	}
} *root1;

signed main() {
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int N, M, a, b, c; cin >> N >> M;
	vector<int> W, died(M, 0);
	for (int i = 0; i < N; i++) {
		cin >> a;
		W.push_back(a);
	}
	root1 = new node1(0, N - 1);
	vector<pair<pair<int, int>, pair<int, int>>> quers;
	for (int i = 0; i < M; i++) {
		cin >> a >> b >> c; a--, b--;
		quers.push_back({ {a, b}, {c, i} });
	}
	sort(quers.begin(), quers.end(), greater<pair<pair<int, int>, pair<int, int>>>());
	int crnti = N;
	stack<pair<int, int>> stk;
	stk.push({ INT_MAX, N });
	for (int i = 0; i < M; i++) {
		while (crnti > quers[i].first.first) {
			crnti--;
			while (stk.size() && stk.top().first < W[crnti]) {
				auto j = stk.top(); stk.pop();
				root1->upd(j.second, j.second, W[crnti] + j.first);
				root1->upd(j.second + 1, stk.top().second - 1, W[crnti] - j.first);
			}
			stk.push({ W[crnti], crnti });
		}
		if (root1->qry(quers[i].first.first, quers[i].first.second) <= quers[i].second.first) died[quers[i].second.second] = 1;
	}
	for (int i : died) cout << i << '\n';
}
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...