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Submission #519914

# Submission time Handle Problem Language Result Execution time Memory
519914 2022-01-27T16:16:03 Z arujbansal Rabbit Carrot (LMIO19_triusis) C++17
100 / 100
 265 ms 70796 KB 
#include <bits/stdc++.h>

using namespace std;

const int MXN = 2e5 + 1, INF = 1e19;
const int SL = -1e9, SR = 1e9;

struct node {
	int val = -INF;
	node *lc, *rc;

	node() : lc(0), rc(0) {}
};

deque<node> buffer;

node* create_node() {
	buffer.emplace_back();
	return &buffer.back();
}

int query(node* &cur, int l, int r, int ql, int qr) {
	if (!cur) return -INF;
	if (l > qr || r < ql) return -INF;
	if (l >= ql && r <= qr) return cur->val;

	int mid = l + (r - l) / 2;
	return max(query(cur->lc, l, mid, ql, qr), query(cur->rc, mid + 1, r, ql, qr));
}

void maximise(node* &cur, int l, int r, int pos, int val) {
	if (!cur) cur = create_node();
	if (l == r) {
		cur->val = max(cur->val, val);
		return;
	}

	int mid = l + (r - l) / 2;
	if (pos <= mid) maximise(cur->lc, l, mid, pos, val);
	else maximise(cur->rc, mid + 1, r, pos, val);

	if (cur->lc) cur->val = max(cur->val, cur->lc->val);
	if (cur->rc) cur->val = max(cur->val, cur->rc->val);
}

int query(node* &root, int l) {
	return query(root, SL, SR, l, SR);
}

void maximise(node* &root, int pos, int val) {
	maximise(root, SL, SR, pos, val);
}

signed main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);

	int N, M;
	cin >> N >> M;

	node* root = create_node();
	maximise(root, 0, 1);

	for (int i = 1; i <= N; i++) {
		int x;
		cin >> x;

		x -= i * M;

		maximise(root, x, query(root, x) + 1);
	}	

	cout << (N + 1) - root->val;
}

Compilation message

triusis.cpp:5:32: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+19' to '2147483647' [-Woverflow]
    5 | const int MXN = 2e5 + 1, INF = 1e19;
      |                                ^~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 312 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 308 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 312 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 308 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 316 KB Output is correct
18 Correct 0 ms 308 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 3 ms 588 KB Output is correct
21 Correct 4 ms 844 KB Output is correct
22 Correct 4 ms 460 KB Output is correct
23 Correct 4 ms 1868 KB Output is correct
24 Correct 4 ms 1996 KB Output is correct
25 Correct 4 ms 972 KB Output is correct
26 Correct 4 ms 1484 KB Output is correct
27 Correct 3 ms 336 KB Output is correct
28 Correct 3 ms 324 KB Output is correct
29 Correct 3 ms 844 KB Output is correct
30 Correct 4 ms 960 KB Output is correct
31 Correct 3 ms 460 KB Output is correct
32 Correct 4 ms 1612 KB Output is correct
33 Correct 4 ms 1612 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 0 ms 308 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 3 ms 588 KB Output is correct
5 Correct 4 ms 844 KB Output is correct
6 Correct 4 ms 460 KB Output is correct
7 Correct 4 ms 1868 KB Output is correct
8 Correct 4 ms 1996 KB Output is correct
9 Correct 4 ms 972 KB Output is correct
10 Correct 4 ms 1484 KB Output is correct
11 Correct 3 ms 336 KB Output is correct
12 Correct 3 ms 324 KB Output is correct
13 Correct 3 ms 844 KB Output is correct
14 Correct 4 ms 960 KB Output is correct
15 Correct 3 ms 460 KB Output is correct
16 Correct 4 ms 1612 KB Output is correct
17 Correct 4 ms 1612 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 312 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 1 ms 316 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 1 ms 308 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 8 ms 2580 KB Output is correct
35 Correct 5 ms 2636 KB Output is correct
36 Correct 5 ms 2636 KB Output is correct
37 Correct 4 ms 1484 KB Output is correct
38 Correct 3 ms 332 KB Output is correct
39 Correct 3 ms 332 KB Output is correct
40 Correct 3 ms 360 KB Output is correct
41 Correct 2 ms 332 KB Output is correct
42 Correct 6 ms 1872 KB Output is correct
43 Correct 7 ms 1868 KB Output is correct

Subtask #4
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 2580 KB Output is correct
2 Correct 5 ms 2636 KB Output is correct
3 Correct 5 ms 2636 KB Output is correct
4 Correct 4 ms 1484 KB Output is correct
5 Correct 3 ms 332 KB Output is correct
6 Correct 3 ms 332 KB Output is correct
7 Correct 3 ms 360 KB Output is correct
8 Correct 2 ms 332 KB Output is correct
9 Correct 6 ms 1872 KB Output is correct
10 Correct 7 ms 1868 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 0 ms 308 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 3 ms 588 KB Output is correct
15 Correct 4 ms 844 KB Output is correct
16 Correct 4 ms 460 KB Output is correct
17 Correct 4 ms 1868 KB Output is correct
18 Correct 4 ms 1996 KB Output is correct
19 Correct 4 ms 972 KB Output is correct
20 Correct 4 ms 1484 KB Output is correct
21 Correct 3 ms 336 KB Output is correct
22 Correct 3 ms 324 KB Output is correct
23 Correct 3 ms 844 KB Output is correct
24 Correct 4 ms 960 KB Output is correct
25 Correct 3 ms 460 KB Output is correct
26 Correct 4 ms 1612 KB Output is correct
27 Correct 4 ms 1612 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 0 ms 312 KB Output is correct
36 Correct 0 ms 204 KB Output is correct
37 Correct 1 ms 316 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 0 ms 204 KB Output is correct
41 Correct 1 ms 308 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 146 ms 26156 KB Output is correct
45 Correct 224 ms 67184 KB Output is correct
46 Correct 265 ms 70708 KB Output is correct
47 Correct 217 ms 70796 KB Output is correct
48 Correct 138 ms 28264 KB Output is correct
49 Correct 150 ms 50256 KB Output is correct
50 Correct 103 ms 2196 KB Output is correct
51 Correct 105 ms 2320 KB Output is correct
52 Correct 110 ms 6036 KB Output is correct
53 Correct 62 ms 1552 KB Output is correct
54 Correct 152 ms 60196 KB Output is correct
55 Correct 149 ms 59960 KB Output is correct