Submission #342615

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
342615	2021-01-02T13:19:15 Z	SeDunion	Bigger segments (IZhO19_segments)	C++17	100 / 100	373 ms	39572 KB

segments

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 5e5 + 55;

ll a[N], p[N];

ll sum(int l, int r) {
	return p[r] - p[l - 1];
}

using pll = pair<ll,ll>;

set<pair<ll,pll>> s;

vector<set<pair<ll,pll>>::iterator> del;

void upd(ll pos, pll val) {
	//cout << pos << " " << val.first << " " << val.second << " mk" << endl;;
	del.clear();
	auto it = s.upper_bound({pos, {-1, -1}});
	if (s.size() && it != s.begin() && prev(it)->second >= val) return;
	//cout << "actually added" << endl;
	while (it != s.end() && it->second <= val) {
		del.push_back(it);
		it++;
	}
	for (auto it : del) {
		s.erase(it);
	}
	s.insert({pos, val});
}

pll get(ll pos) {
	//cout << pos << " sr" << endl;
	auto it = s.upper_bound({pos + 1, {-1, -1}});
	if (s.empty() || it == s.begin()) return {-1, -1};
	//cout << prev(it)->second.first << " " << prev(it)->second.second << " fou" << endl;
	return prev(it)->second;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0), cout.tie(0);
	int n;
	cin >> n;
	for (int i = 1 ; i <= n ; ++ i) {
		cin >> a[i];
		p[i] = a[i] + p[i - 1];
	}
	ll mx = 1;
	upd(-sum(1, n), {0, 0});
	for (int i = 1 ; i <= n ; ++ i) {
		auto [s, j] = get(-sum(i + 1, n));
		j++;
		mx = max(mx, s + 1);
		upd(sum(j, i) - sum(i + 1, n), {s + 1, i});
		//cout << i << " " << s << " " << j << endl;
	}
	cout << mx;
}

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	364 KB	Output is correct
2	Correct	1 ms	364 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	1 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	0 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	0 ms	364 KB	Output is correct
15	Correct	1 ms	396 KB	Output is correct

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	364 KB	Output is correct
2	Correct	1 ms	364 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	1 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	0 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	0 ms	364 KB	Output is correct
15	Correct	1 ms	396 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	364 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	0 ms	364 KB	Output is correct
2	Correct	1 ms	364 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	1 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	0 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	0 ms	364 KB	Output is correct
15	Correct	1 ms	396 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	364 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	1 ms	364 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	492 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	492 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	620 KB	Output is correct
43	Correct	2 ms	492 KB	Output is correct
44	Correct	2 ms	620 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	0 ms	364 KB	Output is correct
2	Correct	1 ms	364 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	1 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	0 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	0 ms	364 KB	Output is correct
15	Correct	1 ms	396 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	364 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	1 ms	364 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	492 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	492 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	620 KB	Output is correct
43	Correct	2 ms	492 KB	Output is correct
44	Correct	2 ms	620 KB	Output is correct
45	Correct	2 ms	620 KB	Output is correct
46	Correct	58 ms	8192 KB	Output is correct
47	Correct	51 ms	6252 KB	Output is correct
48	Correct	46 ms	2412 KB	Output is correct
49	Correct	64 ms	5612 KB	Output is correct
50	Correct	65 ms	8232 KB	Output is correct
51	Correct	64 ms	6892 KB	Output is correct
52	Correct	31 ms	3820 KB	Output is correct
53	Correct	18 ms	2284 KB	Output is correct
54	Correct	57 ms	6508 KB	Output is correct
55	Correct	66 ms	7660 KB	Output is correct
56	Correct	62 ms	8172 KB	Output is correct
57	Correct	61 ms	8044 KB	Output is correct
58	Correct	59 ms	7660 KB	Output is correct
59	Correct	69 ms	8300 KB	Output is correct
60	Correct	64 ms	8172 KB	Output is correct

Subtask #5
27.0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	364 KB	Output is correct
2	Correct	1 ms	364 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	1 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	0 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	0 ms	364 KB	Output is correct
15	Correct	1 ms	396 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	364 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	1 ms	364 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	492 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	492 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	620 KB	Output is correct
43	Correct	2 ms	492 KB	Output is correct
44	Correct	2 ms	620 KB	Output is correct
45	Correct	2 ms	620 KB	Output is correct
46	Correct	58 ms	8192 KB	Output is correct
47	Correct	51 ms	6252 KB	Output is correct
48	Correct	46 ms	2412 KB	Output is correct
49	Correct	64 ms	5612 KB	Output is correct
50	Correct	65 ms	8232 KB	Output is correct
51	Correct	64 ms	6892 KB	Output is correct
52	Correct	31 ms	3820 KB	Output is correct
53	Correct	18 ms	2284 KB	Output is correct
54	Correct	57 ms	6508 KB	Output is correct
55	Correct	66 ms	7660 KB	Output is correct
56	Correct	62 ms	8172 KB	Output is correct
57	Correct	61 ms	8044 KB	Output is correct
58	Correct	59 ms	7660 KB	Output is correct
59	Correct	69 ms	8300 KB	Output is correct
60	Correct	64 ms	8172 KB	Output is correct
61	Correct	305 ms	39572 KB	Output is correct
62	Correct	324 ms	39560 KB	Output is correct
63	Correct	290 ms	31064 KB	Output is correct
64	Correct	333 ms	14444 KB	Output is correct
65	Correct	369 ms	39532 KB	Output is correct
66	Correct	360 ms	33036 KB	Output is correct
67	Correct	288 ms	26476 KB	Output is correct
68	Correct	135 ms	13420 KB	Output is correct
69	Correct	327 ms	31212 KB	Output is correct
70	Correct	373 ms	37100 KB	Output is correct
71	Correct	362 ms	39520 KB	Output is correct
72	Correct	336 ms	34404 KB	Output is correct
73	Correct	343 ms	35424 KB	Output is correct
74	Correct	360 ms	39532 KB	Output is correct
75	Correct	356 ms	39532 KB	Output is correct

Submission #342615

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