Submission #886901

#	Time	Username	Problem	Language	Result	Execution time	Memory
886901		Alan	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	0 / 100	1096 ms	65724 KiB

sortbooks

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

int a[1000005];
const int inf = 1e9;

struct node {
	int ans, mn, mx;
} seg[4000005];

void build (int l, int r, int id) {
	if (l == r) {
		seg[id].ans = 0;
		seg[id].mn = seg[id].mx = a[l];
		return;
	}
	build(l, (l+r)/2, id*2);
	build((l+r)/2+1, r, id*2+1);
	seg[id].ans = max({seg[id*2].ans, seg[id*2+1].ans, seg[id*2].mx - seg[id*2+1].mn});
	seg[id].mn = min(seg[id*2].mn, seg[id*2+1].mn);
	seg[id].mx = max(seg[id*2].mx, seg[id*2+1].mx);
}

node query (int l, int r, int id, int ql, int qr) {
	if (qr < l || r < ql) return {0, inf, 0};
	if (ql <= l && r <= qr) return seg[id];
	node u = query(l, (l+r)/2, id*2, ql, qr), v = query((l+r)/2+1, r, id*2+1, ql, qr);
	return {max({u.ans, v.ans, u.mx - v.mn}), min(u.mn, v.mn), max(u.mx, v.mx)};
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	int n, m;
	cin >> n >> m;
	for (int i = 1; i <= n; i++) cin >> a[i];
	build(1, n, 1);
	while (m--) {
		int l, r, k;
		cin >> l >> r >> k;
		cout << (query(1, n, 1, l, r).ans <= k) << '\n'; 
	}
	return 0;
}

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