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Submission #1021543

# Submission time Handle Problem Language Result Execution time Memory
1021543 2024-07-12T19:23:26 Z aykhn Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
100 / 100
 2312 ms 262144 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
const int MXN = 1e6 + 5;
 
int n, q;
int a[MXN];
vector<int> st[MXN << 2];
int mx[MXN << 2];
 
void build(int l, int r, int x)
{
	mx[x] = 0;
	if (l == r)
	{
		st[x].push_back(a[l]);
		return;
	}
	int mid = (l + r) >> 1;
	build(l, mid, 2*x), build(mid + 1, r, 2*x + 1);
	st[x].resize(st[2*x].size() + st[2*x + 1].size());
	merge(st[2*x].begin(), st[2*x].end(), st[2*x + 1].begin(), st[2*x + 1].end(), st[x].begin());
	if (st[2*x].back() > st[2*x + 1][0]) mx[x] = st[2*x].back() + *--lower_bound(st[2*x + 1].begin(), st[2*x + 1].end(), st[2*x].back());
	mx[x] = max({mx[x], mx[2*x], mx[2*x + 1]});
}
 
vector<int> res;
void get(int l, int r, int x, int lx, int rx)
{
	if (l > rx || r < lx) return;
	if (l >= lx && r <= rx) 
	{
		res.push_back(x);
		return;
	}
	int mid = (l + r) >> 1;
	get(l, mid, 2*x, lx, rx);
	get(mid + 1, r, 2*x + 1, lx, rx);
}
 
signed main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> q;
	for (int i = 1; i <= n; i++) cin >> a[i];
	build(1, n, 1);
	while (q--)
	{
		res.clear();
		int l, r, x;
		cin >> l >> r >> x;
		get(1, n, 1, l, r);
		int curmx = 0, ans = 0;
		for (int &i : res) ans = max(ans, mx[i]);
		for (int i = 0; i + 1 < res.size(); i++)
		{
			int l = res[i], r = res[i + 1];
			curmx = max(curmx, st[l].back());
			if (curmx > st[r][0]) ans = max(ans, curmx + *--lower_bound(st[r].begin(), st[r].end(), curmx));
		}
		cout << (ans <= x) << '\n';
	}
}

Compilation message

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:57:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |   for (int i = 0; i + 1 < res.size(); i++)
      |                   ~~~~~~^~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 95312 KB Output is correct
2 Correct 44 ms 95436 KB Output is correct
3 Correct 44 ms 95312 KB Output is correct
4 Correct 44 ms 95364 KB Output is correct
5 Correct 48 ms 95568 KB Output is correct
6 Correct 44 ms 95312 KB Output is correct
7 Correct 46 ms 95324 KB Output is correct
8 Correct 43 ms 95316 KB Output is correct
9 Correct 43 ms 95312 KB Output is correct
10 Correct 52 ms 95444 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 95312 KB Output is correct
2 Correct 44 ms 95436 KB Output is correct
3 Correct 44 ms 95312 KB Output is correct
4 Correct 44 ms 95364 KB Output is correct
5 Correct 48 ms 95568 KB Output is correct
6 Correct 44 ms 95312 KB Output is correct
7 Correct 46 ms 95324 KB Output is correct
8 Correct 43 ms 95316 KB Output is correct
9 Correct 43 ms 95312 KB Output is correct
10 Correct 52 ms 95444 KB Output is correct
11 Correct 45 ms 95572 KB Output is correct
12 Correct 44 ms 95824 KB Output is correct
13 Correct 46 ms 96060 KB Output is correct
14 Correct 49 ms 96080 KB Output is correct
15 Correct 58 ms 96080 KB Output is correct
16 Correct 47 ms 96088 KB Output is correct
17 Correct 47 ms 95944 KB Output is correct
18 Correct 46 ms 95824 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2267 ms 262144 KB Output is correct
2 Correct 2221 ms 262144 KB Output is correct
3 Correct 2288 ms 262144 KB Output is correct
4 Correct 2312 ms 262144 KB Output is correct
5 Correct 1493 ms 262144 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 164 ms 108372 KB Output is correct
2 Correct 159 ms 108368 KB Output is correct
3 Correct 133 ms 108368 KB Output is correct
4 Correct 123 ms 108568 KB Output is correct
5 Correct 131 ms 108372 KB Output is correct
6 Correct 118 ms 108372 KB Output is correct
7 Correct 111 ms 108364 KB Output is correct
8 Correct 124 ms 108476 KB Output is correct
9 Correct 79 ms 95572 KB Output is correct
10 Correct 119 ms 108372 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 95312 KB Output is correct
2 Correct 44 ms 95436 KB Output is correct
3 Correct 44 ms 95312 KB Output is correct
4 Correct 44 ms 95364 KB Output is correct
5 Correct 48 ms 95568 KB Output is correct
6 Correct 44 ms 95312 KB Output is correct
7 Correct 46 ms 95324 KB Output is correct
8 Correct 43 ms 95316 KB Output is correct
9 Correct 43 ms 95312 KB Output is correct
10 Correct 52 ms 95444 KB Output is correct
11 Correct 45 ms 95572 KB Output is correct
12 Correct 44 ms 95824 KB Output is correct
13 Correct 46 ms 96060 KB Output is correct
14 Correct 49 ms 96080 KB Output is correct
15 Correct 58 ms 96080 KB Output is correct
16 Correct 47 ms 96088 KB Output is correct
17 Correct 47 ms 95944 KB Output is correct
18 Correct 46 ms 95824 KB Output is correct
19 Correct 362 ms 122524 KB Output is correct
20 Correct 356 ms 122452 KB Output is correct
21 Correct 314 ms 122344 KB Output is correct
22 Correct 308 ms 122452 KB Output is correct
23 Correct 314 ms 122448 KB Output is correct
24 Correct 210 ms 122420 KB Output is correct
25 Correct 207 ms 122448 KB Output is correct
26 Correct 246 ms 122448 KB Output is correct
27 Correct 312 ms 122492 KB Output is correct
28 Correct 270 ms 122492 KB Output is correct
29 Correct 258 ms 122392 KB Output is correct
30 Correct 253 ms 122708 KB Output is correct
31 Correct 251 ms 122448 KB Output is correct
32 Correct 267 ms 122448 KB Output is correct
33 Correct 259 ms 122448 KB Output is correct
34 Correct 202 ms 122448 KB Output is correct
35 Correct 202 ms 122448 KB Output is correct
36 Correct 197 ms 122324 KB Output is correct
37 Correct 210 ms 122448 KB Output is correct
38 Correct 201 ms 122452 KB Output is correct
39 Correct 234 ms 122452 KB Output is correct
40 Correct 161 ms 112648 KB Output is correct
41 Correct 229 ms 122428 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 95312 KB Output is correct
2 Correct 44 ms 95436 KB Output is correct
3 Correct 44 ms 95312 KB Output is correct
4 Correct 44 ms 95364 KB Output is correct
5 Correct 48 ms 95568 KB Output is correct
6 Correct 44 ms 95312 KB Output is correct
7 Correct 46 ms 95324 KB Output is correct
8 Correct 43 ms 95316 KB Output is correct
9 Correct 43 ms 95312 KB Output is correct
10 Correct 52 ms 95444 KB Output is correct
11 Correct 45 ms 95572 KB Output is correct
12 Correct 44 ms 95824 KB Output is correct
13 Correct 46 ms 96060 KB Output is correct
14 Correct 49 ms 96080 KB Output is correct
15 Correct 58 ms 96080 KB Output is correct
16 Correct 47 ms 96088 KB Output is correct
17 Correct 47 ms 95944 KB Output is correct
18 Correct 46 ms 95824 KB Output is correct
19 Correct 2267 ms 262144 KB Output is correct
20 Correct 2221 ms 262144 KB Output is correct
21 Correct 2288 ms 262144 KB Output is correct
22 Correct 2312 ms 262144 KB Output is correct
23 Correct 1493 ms 262144 KB Output is correct
24 Correct 164 ms 108372 KB Output is correct
25 Correct 159 ms 108368 KB Output is correct
26 Correct 133 ms 108368 KB Output is correct
27 Correct 123 ms 108568 KB Output is correct
28 Correct 131 ms 108372 KB Output is correct
29 Correct 118 ms 108372 KB Output is correct
30 Correct 111 ms 108364 KB Output is correct
31 Correct 124 ms 108476 KB Output is correct
32 Correct 79 ms 95572 KB Output is correct
33 Correct 119 ms 108372 KB Output is correct
34 Correct 362 ms 122524 KB Output is correct
35 Correct 356 ms 122452 KB Output is correct
36 Correct 314 ms 122344 KB Output is correct
37 Correct 308 ms 122452 KB Output is correct
38 Correct 314 ms 122448 KB Output is correct
39 Correct 210 ms 122420 KB Output is correct
40 Correct 207 ms 122448 KB Output is correct
41 Correct 246 ms 122448 KB Output is correct
42 Correct 312 ms 122492 KB Output is correct
43 Correct 270 ms 122492 KB Output is correct
44 Correct 258 ms 122392 KB Output is correct
45 Correct 253 ms 122708 KB Output is correct
46 Correct 251 ms 122448 KB Output is correct
47 Correct 267 ms 122448 KB Output is correct
48 Correct 259 ms 122448 KB Output is correct
49 Correct 202 ms 122448 KB Output is correct
50 Correct 202 ms 122448 KB Output is correct
51 Correct 197 ms 122324 KB Output is correct
52 Correct 210 ms 122448 KB Output is correct
53 Correct 201 ms 122452 KB Output is correct
54 Correct 234 ms 122452 KB Output is correct
55 Correct 161 ms 112648 KB Output is correct
56 Correct 229 ms 122428 KB Output is correct
57 Correct 2114 ms 262144 KB Output is correct
58 Correct 2128 ms 262144 KB Output is correct
59 Correct 2154 ms 262144 KB Output is correct
60 Correct 2124 ms 262144 KB Output is correct
61 Correct 2118 ms 262144 KB Output is correct
62 Correct 2146 ms 262144 KB Output is correct
63 Correct 994 ms 262144 KB Output is correct
64 Correct 946 ms 262144 KB Output is correct
65 Correct 1448 ms 262144 KB Output is correct
66 Correct 1404 ms 262144 KB Output is correct
67 Correct 1390 ms 262144 KB Output is correct
68 Correct 1379 ms 262144 KB Output is correct
69 Correct 1384 ms 262144 KB Output is correct
70 Correct 1417 ms 262144 KB Output is correct
71 Correct 1500 ms 262144 KB Output is correct
72 Correct 1424 ms 262144 KB Output is correct
73 Correct 933 ms 262144 KB Output is correct
74 Correct 986 ms 262144 KB Output is correct
75 Correct 943 ms 262144 KB Output is correct
76 Correct 926 ms 262144 KB Output is correct
77 Correct 991 ms 262144 KB Output is correct
78 Correct 1461 ms 262144 KB Output is correct
79 Correct 848 ms 191812 KB Output is correct
80 Correct 1329 ms 262144 KB Output is correct