답안 #990912

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
990912	2024-05-31T19:21:35 Z	ToniB	Bigger segments (IZhO19_segments)	C++17	100 / 100	300 ms	50260 KB

segments

#include <bits/stdc++.h>
using namespace std;

#define X first
#define Y second

typedef long long ll;
typedef pair<int, ll> pii;

const int N = 5e5 + 2;

int n, a[N];
pii dp[N];
ll pre[N];
set<pair<ll, pii> > s;

pii cmp_dp(pii x, pii y) {
	if (x.X == y.X) {
		if (x.Y < y.Y) return x;
		return y;
	}
	if (x.X > y.X) return x;
	return y;
}
bool higher(pii x, pii y) {
	if (x.X == y.X) return x.Y > y.Y;
	return x.X > y.X;
}

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0);

	cin >> n;
	for (int i = 0; i < n; ++i) cin >> a[i];

	pre[0] = a[0];
	for (int i = 1; i < n; ++i) pre[i] = a[i] + pre[i - 1];

	for (int i = 0; i < n; ++i) {
		dp[i] = {1, pre[i]};
		
		auto it = s.lower_bound({pre[i] + 1, {0, 0}});
		
		if (it != s.begin()) {
			--it;
			dp[i] = cmp_dp(dp[i], {(*it).Y.X + 1, pre[i] - (*it).Y.Y});
		}
		
		pii cur = {dp[i].X, pre[i]};
		ll x = dp[i].Y + pre[i];
		
		it = s.lower_bound({x, {0, 0}});
		
		while (it != s.end() && !higher((*it).second, cur)) {
			s.erase(it);
			it = s.lower_bound({x, {0, 0}});
		}
		
		it = s.lower_bound({x + 1, {0, 0}});

		if (it != s.begin() && !higher(cur, (*--it).second)) continue;
		s.insert({x, cur});
	}

	cout << dp[n - 1].X << "\n";
	
	return 0;
}

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	0 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	0 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	0 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	0 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4444 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	1 ms	4444 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	1 ms	4444 KB	Output is correct
25	Correct	1 ms	4444 KB	Output is correct
26	Correct	1 ms	4440 KB	Output is correct
27	Correct	1 ms	4444 KB	Output is correct
28	Correct	1 ms	4444 KB	Output is correct
29	Correct	1 ms	4444 KB	Output is correct
30	Correct	1 ms	4444 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	0 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	0 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4444 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	1 ms	4444 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	1 ms	4444 KB	Output is correct
25	Correct	1 ms	4444 KB	Output is correct
26	Correct	1 ms	4440 KB	Output is correct
27	Correct	1 ms	4444 KB	Output is correct
28	Correct	1 ms	4444 KB	Output is correct
29	Correct	1 ms	4444 KB	Output is correct
30	Correct	1 ms	4444 KB	Output is correct
31	Correct	1 ms	4700 KB	Output is correct
32	Correct	1 ms	4444 KB	Output is correct
33	Correct	1 ms	4444 KB	Output is correct
34	Correct	2 ms	4696 KB	Output is correct
35	Correct	1 ms	4700 KB	Output is correct
36	Correct	2 ms	4700 KB	Output is correct
37	Correct	1 ms	4700 KB	Output is correct
38	Correct	1 ms	4444 KB	Output is correct
39	Correct	1 ms	4700 KB	Output is correct
40	Correct	1 ms	4700 KB	Output is correct
41	Correct	1 ms	4700 KB	Output is correct
42	Correct	1 ms	4700 KB	Output is correct
43	Correct	1 ms	4700 KB	Output is correct
44	Correct	1 ms	4700 KB	Output is correct
45	Correct	1 ms	4700 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	0 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	0 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4444 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	1 ms	4444 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	1 ms	4444 KB	Output is correct
25	Correct	1 ms	4444 KB	Output is correct
26	Correct	1 ms	4440 KB	Output is correct
27	Correct	1 ms	4444 KB	Output is correct
28	Correct	1 ms	4444 KB	Output is correct
29	Correct	1 ms	4444 KB	Output is correct
30	Correct	1 ms	4444 KB	Output is correct
31	Correct	1 ms	4700 KB	Output is correct
32	Correct	1 ms	4444 KB	Output is correct
33	Correct	1 ms	4444 KB	Output is correct
34	Correct	2 ms	4696 KB	Output is correct
35	Correct	1 ms	4700 KB	Output is correct
36	Correct	2 ms	4700 KB	Output is correct
37	Correct	1 ms	4700 KB	Output is correct
38	Correct	1 ms	4444 KB	Output is correct
39	Correct	1 ms	4700 KB	Output is correct
40	Correct	1 ms	4700 KB	Output is correct
41	Correct	1 ms	4700 KB	Output is correct
42	Correct	1 ms	4700 KB	Output is correct
43	Correct	1 ms	4700 KB	Output is correct
44	Correct	1 ms	4700 KB	Output is correct
45	Correct	1 ms	4700 KB	Output is correct
46	Correct	41 ms	14932 KB	Output is correct
47	Correct	36 ms	13400 KB	Output is correct
48	Correct	28 ms	9916 KB	Output is correct
49	Correct	43 ms	13140 KB	Output is correct
50	Correct	47 ms	15956 KB	Output is correct
51	Correct	48 ms	14676 KB	Output is correct
52	Correct	22 ms	11604 KB	Output is correct
53	Correct	12 ms	10564 KB	Output is correct
54	Correct	42 ms	13448 KB	Output is correct
55	Correct	54 ms	15444 KB	Output is correct
56	Correct	50 ms	15384 KB	Output is correct
57	Correct	44 ms	14928 KB	Output is correct
58	Correct	42 ms	14672 KB	Output is correct
59	Correct	45 ms	15444 KB	Output is correct
60	Correct	48 ms	15440 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	0 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	0 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4444 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	1 ms	4444 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	1 ms	4444 KB	Output is correct
25	Correct	1 ms	4444 KB	Output is correct
26	Correct	1 ms	4440 KB	Output is correct
27	Correct	1 ms	4444 KB	Output is correct
28	Correct	1 ms	4444 KB	Output is correct
29	Correct	1 ms	4444 KB	Output is correct
30	Correct	1 ms	4444 KB	Output is correct
31	Correct	1 ms	4700 KB	Output is correct
32	Correct	1 ms	4444 KB	Output is correct
33	Correct	1 ms	4444 KB	Output is correct
34	Correct	2 ms	4696 KB	Output is correct
35	Correct	1 ms	4700 KB	Output is correct
36	Correct	2 ms	4700 KB	Output is correct
37	Correct	1 ms	4700 KB	Output is correct
38	Correct	1 ms	4444 KB	Output is correct
39	Correct	1 ms	4700 KB	Output is correct
40	Correct	1 ms	4700 KB	Output is correct
41	Correct	1 ms	4700 KB	Output is correct
42	Correct	1 ms	4700 KB	Output is correct
43	Correct	1 ms	4700 KB	Output is correct
44	Correct	1 ms	4700 KB	Output is correct
45	Correct	1 ms	4700 KB	Output is correct
46	Correct	41 ms	14932 KB	Output is correct
47	Correct	36 ms	13400 KB	Output is correct
48	Correct	28 ms	9916 KB	Output is correct
49	Correct	43 ms	13140 KB	Output is correct
50	Correct	47 ms	15956 KB	Output is correct
51	Correct	48 ms	14676 KB	Output is correct
52	Correct	22 ms	11604 KB	Output is correct
53	Correct	12 ms	10564 KB	Output is correct
54	Correct	42 ms	13448 KB	Output is correct
55	Correct	54 ms	15444 KB	Output is correct
56	Correct	50 ms	15384 KB	Output is correct
57	Correct	44 ms	14928 KB	Output is correct
58	Correct	42 ms	14672 KB	Output is correct
59	Correct	45 ms	15444 KB	Output is correct
60	Correct	48 ms	15440 KB	Output is correct
61	Correct	251 ms	47184 KB	Output is correct
62	Correct	258 ms	47444 KB	Output is correct
63	Correct	227 ms	39092 KB	Output is correct
64	Correct	239 ms	24916 KB	Output is correct
65	Correct	281 ms	50260 KB	Output is correct
66	Correct	282 ms	43604 KB	Output is correct
67	Correct	227 ms	37460 KB	Output is correct
68	Correct	102 ms	22608 KB	Output is correct
69	Correct	268 ms	38076 KB	Output is correct
70	Correct	298 ms	47700 KB	Output is correct
71	Correct	264 ms	47184 KB	Output is correct
72	Correct	252 ms	41484 KB	Output is correct
73	Correct	258 ms	43600 KB	Output is correct
74	Correct	300 ms	48720 KB	Output is correct
75	Correct	296 ms	48492 KB	Output is correct

답안 #990912

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