Submission #572503

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
572503	2022-06-04T14:16:25 Z	vovamr	Bigger segments (IZhO19_segments)	C++17	100 / 100	135 ms	18920 KB

segments

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define fi first
#define se second
#define ll long long
#define ld long double
#define sz(x) ((int)(x).size())
#define all(x) 	(x).begin(), (x).end()
#define pb push_back
#define mpp make_pair
#define ve vector
using namespace std;
using namespace __gnu_pbds;
template<class T> using oset = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
const ll inf = 1e18; const int iinf = 1e9;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template <typename T> inline bool chmin(T& a, T b) { return (a > b ? a = b, 1 : 0); }
template <typename T> inline bool chmax(T& a, T b) { return (a < b ? a = b, 1 : 0); }

inline void solve() {
	int n;
	cin >> n;
	ve<int> a(n + 1);
	for (int i = 1; i <= n; ++i) cin >> a[i];

	ve<ll> p(n + 1);
	for (int i = 1; i <= n; ++i) p[i] = p[i - 1] + a[i];

	ve<ll> opt(n + 1), dp(n + 1);

	for (int i = 1; i <= n; ++i) {
		chmax(opt[i], opt[i - 1]);
		chmax(dp[i], dp[opt[i]] + 1);

		ll need = 2 * p[i] - p[opt[i]];
		int pos = lower_bound(all(p), need) - p.begin();
		chmax(opt[pos], i * 1ll);
	}
	cout << dp[n];
}

signed main() {
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	int q = 1; // cin >> q;
	while (q--) solve();
	cerr << fixed << setprecision(3) << "Time execution: " << (double)clock() / CLOCKS_PER_SEC << endl;
}

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	324 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	240 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	376 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	324 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	240 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	376 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct
16	Correct	1 ms	324 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	324 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	324 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	328 KB	Output is correct
29	Correct	1 ms	324 KB	Output is correct
30	Correct	1 ms	324 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	324 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	240 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	376 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct
16	Correct	1 ms	324 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	324 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	324 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	328 KB	Output is correct
29	Correct	1 ms	324 KB	Output is correct
30	Correct	1 ms	324 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	332 KB	Output is correct
34	Correct	1 ms	332 KB	Output is correct
35	Correct	1 ms	340 KB	Output is correct
36	Correct	1 ms	336 KB	Output is correct
37	Correct	1 ms	340 KB	Output is correct
38	Correct	1 ms	340 KB	Output is correct
39	Correct	1 ms	388 KB	Output is correct
40	Correct	1 ms	340 KB	Output is correct
41	Correct	1 ms	328 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	340 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	336 KB	Output is correct

Subtask #4
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	324 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	240 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	376 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct
16	Correct	1 ms	324 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	324 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	324 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	328 KB	Output is correct
29	Correct	1 ms	324 KB	Output is correct
30	Correct	1 ms	324 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	332 KB	Output is correct
34	Correct	1 ms	332 KB	Output is correct
35	Correct	1 ms	340 KB	Output is correct
36	Correct	1 ms	336 KB	Output is correct
37	Correct	1 ms	340 KB	Output is correct
38	Correct	1 ms	340 KB	Output is correct
39	Correct	1 ms	388 KB	Output is correct
40	Correct	1 ms	340 KB	Output is correct
41	Correct	1 ms	328 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	340 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	336 KB	Output is correct
46	Correct	10 ms	3432 KB	Output is correct
47	Correct	17 ms	3528 KB	Output is correct
48	Correct	17 ms	3840 KB	Output is correct
49	Correct	27 ms	3916 KB	Output is correct
50	Correct	20 ms	4048 KB	Output is correct
51	Correct	23 ms	4036 KB	Output is correct
52	Correct	10 ms	2132 KB	Output is correct
53	Correct	6 ms	1372 KB	Output is correct
54	Correct	14 ms	3280 KB	Output is correct
55	Correct	20 ms	4100 KB	Output is correct
56	Correct	15 ms	3536 KB	Output is correct
57	Correct	18 ms	3404 KB	Output is correct
58	Correct	21 ms	3532 KB	Output is correct
59	Correct	23 ms	3612 KB	Output is correct
60	Correct	23 ms	3612 KB	Output is correct

Subtask #5
27.0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	324 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	240 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	376 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct
16	Correct	1 ms	324 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	324 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	324 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	328 KB	Output is correct
29	Correct	1 ms	324 KB	Output is correct
30	Correct	1 ms	324 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	332 KB	Output is correct
34	Correct	1 ms	332 KB	Output is correct
35	Correct	1 ms	340 KB	Output is correct
36	Correct	1 ms	336 KB	Output is correct
37	Correct	1 ms	340 KB	Output is correct
38	Correct	1 ms	340 KB	Output is correct
39	Correct	1 ms	388 KB	Output is correct
40	Correct	1 ms	340 KB	Output is correct
41	Correct	1 ms	328 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	340 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	336 KB	Output is correct
46	Correct	10 ms	3432 KB	Output is correct
47	Correct	17 ms	3528 KB	Output is correct
48	Correct	17 ms	3840 KB	Output is correct
49	Correct	27 ms	3916 KB	Output is correct
50	Correct	20 ms	4048 KB	Output is correct
51	Correct	23 ms	4036 KB	Output is correct
52	Correct	10 ms	2132 KB	Output is correct
53	Correct	6 ms	1372 KB	Output is correct
54	Correct	14 ms	3280 KB	Output is correct
55	Correct	20 ms	4100 KB	Output is correct
56	Correct	15 ms	3536 KB	Output is correct
57	Correct	18 ms	3404 KB	Output is correct
58	Correct	21 ms	3532 KB	Output is correct
59	Correct	23 ms	3612 KB	Output is correct
60	Correct	23 ms	3612 KB	Output is correct
61	Correct	85 ms	15888 KB	Output is correct
62	Correct	68 ms	15948 KB	Output is correct
63	Correct	78 ms	16344 KB	Output is correct
64	Correct	135 ms	18528 KB	Output is correct
65	Correct	96 ms	18880 KB	Output is correct
66	Correct	95 ms	18868 KB	Output is correct
67	Correct	76 ms	15184 KB	Output is correct
68	Correct	34 ms	7744 KB	Output is correct
69	Correct	60 ms	14952 KB	Output is correct
70	Correct	85 ms	18920 KB	Output is correct
71	Correct	64 ms	15960 KB	Output is correct
72	Correct	58 ms	16360 KB	Output is correct
73	Correct	66 ms	16976 KB	Output is correct
74	Correct	68 ms	17256 KB	Output is correct
75	Correct	82 ms	17340 KB	Output is correct

Submission #572503

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