Submission #515028

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
515028	2022-01-19T01:52:35 Z	thiago_bastos	Bigger segments (IZhO19_segments)	C++17	100 / 100	87 ms	24740 KB

segments

#include "bits/stdc++.h"

using namespace std;
 
using i64 = long long;
using u64 = unsigned long long;
using i32 = int;
using u32 = unsigned;
using i16 = short;
using u16 = unsigned short;
using ld = long double;
using ii = pair<i64, int>;

const i64 inf = 1e15L;

ii cmp(ii a, ii b) {
	if(a.first != b.first) return min(a, b);
	return max(a, b);
}

void solve() {
	
	int n;

	cin >> n;

   	vector<ii> dp(n, ii(inf, 0)), S(n + 2, ii(inf, 0));
	vector<i64> pre(n + 1, 0);
	
	for(int i = 1; i <= n; ++i) {
		cin >> pre[i];
		pre[i] += pre[i - 1];
		dp[i - 1] = {pre[i], 0};
	}

	for(int i = 0; i < n; ++i) {
		S[i + 1] = cmp(S[i + 1], S[i]);
		dp[i] = cmp(dp[i], make_pair(S[i + 1].first + pre[i + 1], S[i + 1].second));
		++dp[i].second;
		int k = lower_bound(pre.begin(), pre.end(), dp[i].first + pre[i + 1]) - pre.begin() - 1;
		S[k + 1] = cmp(S[k + 1], make_pair(-pre[i + 1], dp[i].second));
	}

	cout << dp.back().second << '\n';
}
 
int main() {
	ios_base :: sync_with_stdio(false);
	cin.tie(0);
	int t = 1;
	//cin >> t;
	while(t--) solve();
	return 0;
}

Subtask #1
13.0 / 13.0

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

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 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	0 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	0 ms	308 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	312 KB	Output is correct
16	Correct	0 ms	308 KB	Output is correct
17	Correct	0 ms	312 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	0 ms	316 KB	Output is correct
20	Correct	1 ms	316 KB	Output is correct
21	Correct	1 ms	320 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	0 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	0 ms	204 KB	Output is correct
28	Correct	0 ms	332 KB	Output is correct
29	Correct	0 ms	300 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 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	0 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	0 ms	308 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	312 KB	Output is correct
16	Correct	0 ms	308 KB	Output is correct
17	Correct	0 ms	312 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	0 ms	316 KB	Output is correct
20	Correct	1 ms	316 KB	Output is correct
21	Correct	1 ms	320 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	0 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	0 ms	204 KB	Output is correct
28	Correct	0 ms	332 KB	Output is correct
29	Correct	0 ms	300 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	332 KB	Output is correct
32	Correct	1 ms	448 KB	Output is correct
33	Correct	1 ms	580 KB	Output is correct
34	Correct	1 ms	448 KB	Output is correct
35	Correct	1 ms	440 KB	Output is correct
36	Correct	1 ms	460 KB	Output is correct
37	Correct	1 ms	324 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	1 ms	332 KB	Output is correct
40	Correct	1 ms	460 KB	Output is correct
41	Correct	1 ms	332 KB	Output is correct
42	Correct	1 ms	332 KB	Output is correct
43	Correct	1 ms	332 KB	Output is correct
44	Correct	1 ms	448 KB	Output is correct
45	Correct	1 ms	332 KB	Output is correct

Subtask #4
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 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	0 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	0 ms	308 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	312 KB	Output is correct
16	Correct	0 ms	308 KB	Output is correct
17	Correct	0 ms	312 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	0 ms	316 KB	Output is correct
20	Correct	1 ms	316 KB	Output is correct
21	Correct	1 ms	320 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	0 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	0 ms	204 KB	Output is correct
28	Correct	0 ms	332 KB	Output is correct
29	Correct	0 ms	300 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	332 KB	Output is correct
32	Correct	1 ms	448 KB	Output is correct
33	Correct	1 ms	580 KB	Output is correct
34	Correct	1 ms	448 KB	Output is correct
35	Correct	1 ms	440 KB	Output is correct
36	Correct	1 ms	460 KB	Output is correct
37	Correct	1 ms	324 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	1 ms	332 KB	Output is correct
40	Correct	1 ms	460 KB	Output is correct
41	Correct	1 ms	332 KB	Output is correct
42	Correct	1 ms	332 KB	Output is correct
43	Correct	1 ms	332 KB	Output is correct
44	Correct	1 ms	448 KB	Output is correct
45	Correct	1 ms	332 KB	Output is correct
46	Correct	10 ms	4544 KB	Output is correct
47	Correct	12 ms	4684 KB	Output is correct
48	Correct	15 ms	5056 KB	Output is correct
49	Correct	17 ms	5068 KB	Output is correct
50	Correct	17 ms	5116 KB	Output is correct
51	Correct	16 ms	5120 KB	Output is correct
52	Correct	8 ms	2756 KB	Output is correct
53	Correct	6 ms	1740 KB	Output is correct
54	Correct	12 ms	4428 KB	Output is correct
55	Correct	19 ms	5184 KB	Output is correct
56	Correct	14 ms	4676 KB	Output is correct
57	Correct	11 ms	4556 KB	Output is correct
58	Correct	12 ms	4548 KB	Output is correct
59	Correct	14 ms	4800 KB	Output is correct
60	Correct	14 ms	4804 KB	Output is correct

Subtask #5
27.0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 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	0 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	0 ms	308 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	312 KB	Output is correct
16	Correct	0 ms	308 KB	Output is correct
17	Correct	0 ms	312 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	0 ms	316 KB	Output is correct
20	Correct	1 ms	316 KB	Output is correct
21	Correct	1 ms	320 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	0 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	0 ms	204 KB	Output is correct
28	Correct	0 ms	332 KB	Output is correct
29	Correct	0 ms	300 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	332 KB	Output is correct
32	Correct	1 ms	448 KB	Output is correct
33	Correct	1 ms	580 KB	Output is correct
34	Correct	1 ms	448 KB	Output is correct
35	Correct	1 ms	440 KB	Output is correct
36	Correct	1 ms	460 KB	Output is correct
37	Correct	1 ms	324 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	1 ms	332 KB	Output is correct
40	Correct	1 ms	460 KB	Output is correct
41	Correct	1 ms	332 KB	Output is correct
42	Correct	1 ms	332 KB	Output is correct
43	Correct	1 ms	332 KB	Output is correct
44	Correct	1 ms	448 KB	Output is correct
45	Correct	1 ms	332 KB	Output is correct
46	Correct	10 ms	4544 KB	Output is correct
47	Correct	12 ms	4684 KB	Output is correct
48	Correct	15 ms	5056 KB	Output is correct
49	Correct	17 ms	5068 KB	Output is correct
50	Correct	17 ms	5116 KB	Output is correct
51	Correct	16 ms	5120 KB	Output is correct
52	Correct	8 ms	2756 KB	Output is correct
53	Correct	6 ms	1740 KB	Output is correct
54	Correct	12 ms	4428 KB	Output is correct
55	Correct	19 ms	5184 KB	Output is correct
56	Correct	14 ms	4676 KB	Output is correct
57	Correct	11 ms	4556 KB	Output is correct
58	Correct	12 ms	4548 KB	Output is correct
59	Correct	14 ms	4800 KB	Output is correct
60	Correct	14 ms	4804 KB	Output is correct
61	Correct	48 ms	21792 KB	Output is correct
62	Correct	51 ms	21792 KB	Output is correct
63	Correct	58 ms	22212 KB	Output is correct
64	Correct	87 ms	24380 KB	Output is correct
65	Correct	80 ms	24736 KB	Output is correct
66	Correct	86 ms	24608 KB	Output is correct
67	Correct	61 ms	19768 KB	Output is correct
68	Correct	33 ms	10076 KB	Output is correct
69	Correct	64 ms	20908 KB	Output is correct
70	Correct	78 ms	24740 KB	Output is correct
71	Correct	61 ms	21788 KB	Output is correct
72	Correct	63 ms	22228 KB	Output is correct
73	Correct	69 ms	22824 KB	Output is correct
74	Correct	81 ms	23204 KB	Output is correct
75	Correct	69 ms	23108 KB	Output is correct

Submission #515028

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