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Submission #1096196

# Submission time Handle Problem Language Result Execution time Memory
1096196 2024-10-04T05:25:41 Z stdfloat Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
100 / 100
 2881 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;

using ll = long long;

#define sz(v)  (int)(v).size()
#define all(v) (v).begin(), v.end()

int mx;

vector<int> a, st, vis;

vector<vector<int>> v;

void bld(int nd, int l, int r) {
	if (l == r) {
		vis[nd] = 0; st[nd] = a[l]; v[nd] = {a[l]};
		return;
	}

	int ch = (nd << 1) + 1, md = l + r >> 1;
	bld(ch, l, md); bld(ch + 1, md + 1, r);

	st[nd] = max(st[ch], st[ch + 1]);

	v[nd].assign(sz(v[ch]) + sz(v[ch + 1]), 0);
	merge(all(v[ch]), all(v[ch + 1]), v[nd].begin());
	
	int mx = 0;
	for (int i = l; i <= r; i++) {
		if (mx > a[i]) vis[nd] = max(vis[nd], mx + a[i]);
		else mx = a[i];
	}
}

bool fnd(int nd, int l, int r, int x, int y, int k) {
	if (r < x || y < l) return true;

	if (x <= l && r <= y) {
		bool tr = (vis[nd] <= k && (mx > v[nd][0] ? mx + *--lower_bound(all(v[nd]), mx) : 0) <= k);
		mx = max(mx, st[nd]);
		return tr;
	}

	int ch = (nd << 1) + 1, md = l + r >> 1;
	return (!fnd(ch, l, md, x, y, k) || !fnd(ch + 1, md + 1, r, x, y, k) ? false : true);
}

int main() {
	ios::sync_with_stdio(false); cin.tie(nullptr);

	int n, q;
	cin >> n >> q;

	a.assign(n, 0);
	for (auto &i : a)
		cin >> i;

	v.assign(n << 2, {});
	st = vis = vector<int>(n << 2);
	bld(0, 0, n - 1);

	while (q--) {
		int l, r, k;
		cin >> l >> r >> k; l--; r--;

		mx = 0;
		cout << fnd(0, 0, n - 1, l, r, k) << endl;
	}
}

Compilation message

sortbooks.cpp: In function 'void bld(int, int, int)':
sortbooks.cpp:21:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   21 |  int ch = (nd << 1) + 1, md = l + r >> 1;
      |                               ~~^~~
sortbooks.cpp: In function 'bool fnd(int, int, int, int, int, int)':
sortbooks.cpp:45:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 |  int ch = (nd << 1) + 1, md = l + r >> 1;
      |                               ~~^~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 604 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 5 ms 860 KB Output is correct
12 Correct 6 ms 1628 KB Output is correct
13 Correct 6 ms 1600 KB Output is correct
14 Correct 10 ms 1628 KB Output is correct
15 Correct 9 ms 1628 KB Output is correct
16 Correct 9 ms 1628 KB Output is correct
17 Correct 8 ms 1372 KB Output is correct
18 Correct 11 ms 1628 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2185 ms 262144 KB Output is correct
2 Correct 2198 ms 262144 KB Output is correct
3 Correct 2139 ms 262144 KB Output is correct
4 Correct 2173 ms 262144 KB Output is correct
5 Correct 2801 ms 262144 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 186 ms 26960 KB Output is correct
2 Correct 187 ms 26848 KB Output is correct
3 Correct 198 ms 26796 KB Output is correct
4 Correct 212 ms 26964 KB Output is correct
5 Correct 203 ms 26808 KB Output is correct
6 Correct 153 ms 26836 KB Output is correct
7 Correct 163 ms 26816 KB Output is correct
8 Correct 191 ms 26532 KB Output is correct
9 Correct 122 ms 1872 KB Output is correct
10 Correct 188 ms 26632 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 5 ms 860 KB Output is correct
12 Correct 6 ms 1628 KB Output is correct
13 Correct 6 ms 1600 KB Output is correct
14 Correct 10 ms 1628 KB Output is correct
15 Correct 9 ms 1628 KB Output is correct
16 Correct 9 ms 1628 KB Output is correct
17 Correct 8 ms 1372 KB Output is correct
18 Correct 11 ms 1628 KB Output is correct
19 Correct 436 ms 56912 KB Output is correct
20 Correct 424 ms 56912 KB Output is correct
21 Correct 434 ms 56660 KB Output is correct
22 Correct 398 ms 57024 KB Output is correct
23 Correct 386 ms 56656 KB Output is correct
24 Correct 404 ms 56600 KB Output is correct
25 Correct 378 ms 56668 KB Output is correct
26 Correct 477 ms 56936 KB Output is correct
27 Correct 436 ms 56728 KB Output is correct
28 Correct 456 ms 56916 KB Output is correct
29 Correct 477 ms 56888 KB Output is correct
30 Correct 483 ms 56824 KB Output is correct
31 Correct 481 ms 56920 KB Output is correct
32 Correct 464 ms 57012 KB Output is correct
33 Correct 436 ms 56916 KB Output is correct
34 Correct 328 ms 56512 KB Output is correct
35 Correct 331 ms 56440 KB Output is correct
36 Correct 380 ms 56404 KB Output is correct
37 Correct 329 ms 56496 KB Output is correct
38 Correct 387 ms 56644 KB Output is correct
39 Correct 390 ms 55564 KB Output is correct
40 Correct 361 ms 37456 KB Output is correct
41 Correct 365 ms 55024 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 5 ms 860 KB Output is correct
12 Correct 6 ms 1628 KB Output is correct
13 Correct 6 ms 1600 KB Output is correct
14 Correct 10 ms 1628 KB Output is correct
15 Correct 9 ms 1628 KB Output is correct
16 Correct 9 ms 1628 KB Output is correct
17 Correct 8 ms 1372 KB Output is correct
18 Correct 11 ms 1628 KB Output is correct
19 Correct 2185 ms 262144 KB Output is correct
20 Correct 2198 ms 262144 KB Output is correct
21 Correct 2139 ms 262144 KB Output is correct
22 Correct 2173 ms 262144 KB Output is correct
23 Correct 2801 ms 262144 KB Output is correct
24 Correct 186 ms 26960 KB Output is correct
25 Correct 187 ms 26848 KB Output is correct
26 Correct 198 ms 26796 KB Output is correct
27 Correct 212 ms 26964 KB Output is correct
28 Correct 203 ms 26808 KB Output is correct
29 Correct 153 ms 26836 KB Output is correct
30 Correct 163 ms 26816 KB Output is correct
31 Correct 191 ms 26532 KB Output is correct
32 Correct 122 ms 1872 KB Output is correct
33 Correct 188 ms 26632 KB Output is correct
34 Correct 436 ms 56912 KB Output is correct
35 Correct 424 ms 56912 KB Output is correct
36 Correct 434 ms 56660 KB Output is correct
37 Correct 398 ms 57024 KB Output is correct
38 Correct 386 ms 56656 KB Output is correct
39 Correct 404 ms 56600 KB Output is correct
40 Correct 378 ms 56668 KB Output is correct
41 Correct 477 ms 56936 KB Output is correct
42 Correct 436 ms 56728 KB Output is correct
43 Correct 456 ms 56916 KB Output is correct
44 Correct 477 ms 56888 KB Output is correct
45 Correct 483 ms 56824 KB Output is correct
46 Correct 481 ms 56920 KB Output is correct
47 Correct 464 ms 57012 KB Output is correct
48 Correct 436 ms 56916 KB Output is correct
49 Correct 328 ms 56512 KB Output is correct
50 Correct 331 ms 56440 KB Output is correct
51 Correct 380 ms 56404 KB Output is correct
52 Correct 329 ms 56496 KB Output is correct
53 Correct 387 ms 56644 KB Output is correct
54 Correct 390 ms 55564 KB Output is correct
55 Correct 361 ms 37456 KB Output is correct
56 Correct 365 ms 55024 KB Output is correct
57 Correct 2384 ms 262144 KB Output is correct
58 Correct 2395 ms 262144 KB Output is correct
59 Correct 2360 ms 262144 KB Output is correct
60 Correct 2340 ms 262144 KB Output is correct
61 Correct 2446 ms 262144 KB Output is correct
62 Correct 2375 ms 262144 KB Output is correct
63 Correct 1900 ms 262144 KB Output is correct
64 Correct 1964 ms 262144 KB Output is correct
65 Correct 2881 ms 262144 KB Output is correct
66 Correct 2784 ms 262144 KB Output is correct
67 Correct 2691 ms 262144 KB Output is correct
68 Correct 2721 ms 262144 KB Output is correct
69 Correct 2492 ms 262144 KB Output is correct
70 Correct 2782 ms 262144 KB Output is correct
71 Correct 2737 ms 262144 KB Output is correct
72 Correct 2739 ms 262144 KB Output is correct
73 Correct 1865 ms 262144 KB Output is correct
74 Correct 1770 ms 262144 KB Output is correct
75 Correct 1811 ms 262144 KB Output is correct
76 Correct 1896 ms 262144 KB Output is correct
77 Correct 1926 ms 262144 KB Output is correct
78 Correct 2203 ms 262144 KB Output is correct
79 Correct 2037 ms 158292 KB Output is correct
80 Correct 2186 ms 262144 KB Output is correct