제출 #1242793

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1242793		ssitaram	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++20	17 / 100	3094 ms	53576 KiB

sortbooks

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;

struct segtree {
	int n;
	vector<int> val;

	segtree(int sz) {
		n = 1;
		while (n < sz) n *= 2;
		val.resize(2 * n - 1);
	}

	void upd(int node, int l, int r, int i, int v) {
		if (r == l + 1) {
			val[node] = v;
			return;
		}
		int m = (l + r) / 2;
		if (i < m) upd(node * 2 + 1, l, m, i, v);
		else upd(node * 2 + 2, m, r, i, v);
		val[node] = max(val[node * 2 + 1], val[node * 2 + 2]);
	}

	void upd(int i, int v) {
		upd(0, 0, n, i, v);
	}
};

int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int n, m; cin >> n >> m;
	vector<int> w(n);
	for (int& i : w) cin >> i;
	vector<bool> ans(m);
	vector<vector<pair<int, pair<int, int>>>> qs(n);
	for (int i = 0; i < m; ++i) {
		int l, r, w; cin >> l >> r >> w;
		qs[--r].push_back({--l, {w, i}});
	}
	vector<int> at(n);
	for (int i = 0; i < n; ++i) {
		for (int j = i - 1; j >= 0; --j) {
			if (w[j] > w[i]) {
				at[j] = w[j] + w[i];
				break;
			}
		}
		for (pair<int, pair<int, int>>& j : qs[i]) {
			int mx = 0;
			for (int k = j.first; k <= i; ++k) {
				mx = max(mx, at[k]);
				//cerr << at[k] << ' ';
			}
			//cerr << '\n';
			ans[j.second.second] = (mx <= j.second.first);
		}
	}
	for (int i = 0; i < m; ++i) {
		cout << ans[i] << '\n';
	}
	return 0;
}

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 30
• Subtask 6: 0 / 23