Submission #342557

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
342557	2021-01-02T11:09:06 Z	dimashii	Bigger segments (IZhO19_segments)	C++17	100 / 100	364 ms	44524 KB

segments

#include <bits/stdc++.h>

#define f first
#define s second

#define fastio ios :: sync_with_stdio(0), cin.tie(0), cout.tie(0);

#define ll long long

using namespace std;

const int mxN = 1e6 + 45, mod = 1e9 + 7;
const ll inf = 2e18 + 43;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

int n, a[mxN], dp[mxN];

ll p[mxN];

set <pair <ll, int> > st;

void add(int idx, ll sum) {
	if (st.empty()) {
		st.insert({sum, idx});
		return;
	}
	auto it = st.lower_bound({sum + 1, 0});
	vector <pair <ll, int> > del;
	while (it != st.end()) del.push_back(*(it++));
	for (auto x : del) st.erase(x);
	st.insert({sum, idx});
}

int get(int idx, ll sum) {
	auto it = st.lower_bound({sum + 1, 0});
	it--;
	return it -> second;
}

int main() {
	fastio;
	cin >> n;
	for (int i = 1; i <= n; ++i) cin >> a[i], p[i] = p[i - 1] + a[i];
	add(0, 0);
	for (int i = 1; i <= n; ++i) {
		int L = get(i, p[i]);
		dp[i] = dp[L] + 1;
		add(i, p[i] * 2 - p[L]);
	}
	cout << dp[n];
	return 0;
}

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	0 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	0 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	0 ms	364 KB	Output is correct

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	0 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	0 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	0 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	0 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	0 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	0 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	2 ms	620 KB	Output is correct
32	Correct	2 ms	492 KB	Output is correct
33	Correct	2 ms	492 KB	Output is correct
34	Correct	2 ms	620 KB	Output is correct
35	Correct	2 ms	620 KB	Output is correct
36	Correct	2 ms	620 KB	Output is correct
37	Correct	2 ms	492 KB	Output is correct
38	Correct	1 ms	492 KB	Output is correct
39	Correct	2 ms	620 KB	Output is correct
40	Correct	2 ms	620 KB	Output is correct
41	Correct	2 ms	620 KB	Output is correct
42	Correct	2 ms	640 KB	Output is correct
43	Correct	2 ms	620 KB	Output is correct
44	Correct	2 ms	640 KB	Output is correct
45	Correct	2 ms	620 KB	Output is correct

Subtask #4
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	0 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	0 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	0 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	2 ms	620 KB	Output is correct
32	Correct	2 ms	492 KB	Output is correct
33	Correct	2 ms	492 KB	Output is correct
34	Correct	2 ms	620 KB	Output is correct
35	Correct	2 ms	620 KB	Output is correct
36	Correct	2 ms	620 KB	Output is correct
37	Correct	2 ms	492 KB	Output is correct
38	Correct	1 ms	492 KB	Output is correct
39	Correct	2 ms	620 KB	Output is correct
40	Correct	2 ms	620 KB	Output is correct
41	Correct	2 ms	620 KB	Output is correct
42	Correct	2 ms	640 KB	Output is correct
43	Correct	2 ms	620 KB	Output is correct
44	Correct	2 ms	640 KB	Output is correct
45	Correct	2 ms	620 KB	Output is correct
46	Correct	52 ms	8556 KB	Output is correct
47	Correct	56 ms	6808 KB	Output is correct
48	Correct	48 ms	3456 KB	Output is correct
49	Correct	67 ms	6764 KB	Output is correct
50	Correct	58 ms	9196 KB	Output is correct
51	Correct	64 ms	7916 KB	Output is correct
52	Correct	29 ms	4076 KB	Output is correct
53	Correct	17 ms	2668 KB	Output is correct
54	Correct	54 ms	6892 KB	Output is correct
55	Correct	62 ms	8556 KB	Output is correct
56	Correct	54 ms	8684 KB	Output is correct
57	Correct	56 ms	8680 KB	Output is correct
58	Correct	52 ms	8020 KB	Output is correct
59	Correct	55 ms	8832 KB	Output is correct
60	Correct	55 ms	8684 KB	Output is correct

Subtask #5
27.0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	0 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	0 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	0 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	2 ms	620 KB	Output is correct
32	Correct	2 ms	492 KB	Output is correct
33	Correct	2 ms	492 KB	Output is correct
34	Correct	2 ms	620 KB	Output is correct
35	Correct	2 ms	620 KB	Output is correct
36	Correct	2 ms	620 KB	Output is correct
37	Correct	2 ms	492 KB	Output is correct
38	Correct	1 ms	492 KB	Output is correct
39	Correct	2 ms	620 KB	Output is correct
40	Correct	2 ms	620 KB	Output is correct
41	Correct	2 ms	620 KB	Output is correct
42	Correct	2 ms	640 KB	Output is correct
43	Correct	2 ms	620 KB	Output is correct
44	Correct	2 ms	640 KB	Output is correct
45	Correct	2 ms	620 KB	Output is correct
46	Correct	52 ms	8556 KB	Output is correct
47	Correct	56 ms	6808 KB	Output is correct
48	Correct	48 ms	3456 KB	Output is correct
49	Correct	67 ms	6764 KB	Output is correct
50	Correct	58 ms	9196 KB	Output is correct
51	Correct	64 ms	7916 KB	Output is correct
52	Correct	29 ms	4076 KB	Output is correct
53	Correct	17 ms	2668 KB	Output is correct
54	Correct	54 ms	6892 KB	Output is correct
55	Correct	62 ms	8556 KB	Output is correct
56	Correct	54 ms	8684 KB	Output is correct
57	Correct	56 ms	8680 KB	Output is correct
58	Correct	52 ms	8020 KB	Output is correct
59	Correct	55 ms	8832 KB	Output is correct
60	Correct	55 ms	8684 KB	Output is correct
61	Correct	286 ms	41452 KB	Output is correct
62	Correct	300 ms	41484 KB	Output is correct
63	Correct	310 ms	33928 KB	Output is correct
64	Correct	364 ms	19064 KB	Output is correct
65	Correct	336 ms	44524 KB	Output is correct
66	Correct	348 ms	37868 KB	Output is correct
67	Correct	272 ms	30444 KB	Output is correct
68	Correct	131 ms	15340 KB	Output is correct
69	Correct	320 ms	33132 KB	Output is correct
70	Correct	358 ms	41836 KB	Output is correct
71	Correct	311 ms	41452 KB	Output is correct
72	Correct	312 ms	37472 KB	Output is correct
73	Correct	314 ms	37848 KB	Output is correct
74	Correct	317 ms	42860 KB	Output is correct
75	Correct	321 ms	42732 KB	Output is correct

Submission #342557

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 14.0 / 14.0

Subtask #3 10.0 / 10.0

Subtask #4 36.0 / 36.0

Subtask #5 27.0 / 27.0

Subtask #1
13.0 / 13.0

Subtask #2
14.0 / 14.0

Subtask #3
10.0 / 10.0

Subtask #4
36.0 / 36.0

Subtask #5
27.0 / 27.0