Submission #497742

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
497742	2021-12-23T17:20:53 Z	Ierus	Bigger segments (IZhO19_segments)	C++17	100 / 100	178 ms	29064 KB

segments

#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize ("unroll-loops,Ofast,O3")
#pragma GCC target("avx,avx2,fma")
#define F first
#define S second
#define int long long
#define sz(x) (int)x.size()
#define pb push_back
#define eb emplace_back
#define all(x) (x).begin(),(x).end()
const int E = 5e5+777;
const long long inf = 1e18+777;
const int N = 3e3+777;
const int MOD = 1e9+7;
int n, a[E], t[E<<2], pref[E];
void update(int pos, int val, int v = 1, int tl = 0, int tr = n){
	if(tl == tr){
 		t[v] = val;
		return;
	}
	int mid = (tl + tr) / 2;
	if(pos <= mid){
		update(pos, val, v<<1, tl, mid);
	}else{
		update(pos, val, v<<1|1, mid + 1, tr);
	}
	t[v] = min(t[v<<1], t[v<<1|1]);
}
int get(int val, int v = 1, int tl = 0, int tr = n){
	if(tl == tr){
		return tl;
	}
	int mid = (tl + tr) / 2;
	if(t[v<<1|1] <= val){
		return get(val, v<<1|1, mid+1,tr);
	}else{
		return get(val, v<<1, tl, mid);
	}
}
pair<int,int> dp[E];
signed main(){
    ios_base::sync_with_stdio(0),
    cin.tie(0),cout.tie(0);
    cin >> n;
    for(int i = 1; i <= n; ++i){
    	cin >> a[i];
    	pref[i] = pref[i-1] + a[i];
	}
	for(int i = 1; i <= n; ++i){
		update(i, LLONG_MAX);
	}
	update(0, 0);
	for(int i = 1; i <= n; ++i){
		int j = get(pref[i]);
		dp[i] = max(dp[i], {dp[j].first + 1, j});
		update(i,2 * pref[i] - pref[dp[i].second]);
	}
	cout << dp[n].first;
}

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	0 ms	332 KB	Output is correct
5	Correct	0 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	0 ms	332 KB	Output is correct

Subtask #2
14.0 / 14.0

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

Subtask #3
10.0 / 10.0

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

Subtask #4
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	0 ms	332 KB	Output is correct
5	Correct	0 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	0 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	0 ms	332 KB	Output is correct
18	Correct	0 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	0 ms	332 KB	Output is correct
23	Correct	0 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	0 ms	332 KB	Output is correct
26	Correct	0 ms	332 KB	Output is correct
27	Correct	0 ms	332 KB	Output is correct
28	Correct	0 ms	332 KB	Output is correct
29	Correct	1 ms	332 KB	Output is correct
30	Correct	0 ms	332 KB	Output is correct
31	Correct	1 ms	460 KB	Output is correct
32	Correct	1 ms	460 KB	Output is correct
33	Correct	1 ms	460 KB	Output is correct
34	Correct	1 ms	460 KB	Output is correct
35	Correct	1 ms	460 KB	Output is correct
36	Correct	1 ms	460 KB	Output is correct
37	Correct	1 ms	460 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	1 ms	460 KB	Output is correct
40	Correct	1 ms	460 KB	Output is correct
41	Correct	1 ms	460 KB	Output is correct
42	Correct	2 ms	460 KB	Output is correct
43	Correct	1 ms	460 KB	Output is correct
44	Correct	1 ms	460 KB	Output is correct
45	Correct	1 ms	460 KB	Output is correct
46	Correct	26 ms	5452 KB	Output is correct
47	Correct	28 ms	5492 KB	Output is correct
48	Correct	28 ms	5392 KB	Output is correct
49	Correct	31 ms	5468 KB	Output is correct
50	Correct	30 ms	6468 KB	Output is correct
51	Correct	33 ms	6468 KB	Output is correct
52	Correct	15 ms	3368 KB	Output is correct
53	Correct	9 ms	1996 KB	Output is correct
54	Correct	27 ms	5728 KB	Output is correct
55	Correct	32 ms	6464 KB	Output is correct
56	Correct	27 ms	5956 KB	Output is correct
57	Correct	29 ms	5872 KB	Output is correct
58	Correct	33 ms	5852 KB	Output is correct
59	Correct	32 ms	5956 KB	Output is correct
60	Correct	28 ms	6084 KB	Output is correct

Subtask #5
27.0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	0 ms	332 KB	Output is correct
5	Correct	0 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	0 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	0 ms	332 KB	Output is correct
18	Correct	0 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	0 ms	332 KB	Output is correct
23	Correct	0 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	0 ms	332 KB	Output is correct
26	Correct	0 ms	332 KB	Output is correct
27	Correct	0 ms	332 KB	Output is correct
28	Correct	0 ms	332 KB	Output is correct
29	Correct	1 ms	332 KB	Output is correct
30	Correct	0 ms	332 KB	Output is correct
31	Correct	1 ms	460 KB	Output is correct
32	Correct	1 ms	460 KB	Output is correct
33	Correct	1 ms	460 KB	Output is correct
34	Correct	1 ms	460 KB	Output is correct
35	Correct	1 ms	460 KB	Output is correct
36	Correct	1 ms	460 KB	Output is correct
37	Correct	1 ms	460 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	1 ms	460 KB	Output is correct
40	Correct	1 ms	460 KB	Output is correct
41	Correct	1 ms	460 KB	Output is correct
42	Correct	2 ms	460 KB	Output is correct
43	Correct	1 ms	460 KB	Output is correct
44	Correct	1 ms	460 KB	Output is correct
45	Correct	1 ms	460 KB	Output is correct
46	Correct	26 ms	5452 KB	Output is correct
47	Correct	28 ms	5492 KB	Output is correct
48	Correct	28 ms	5392 KB	Output is correct
49	Correct	31 ms	5468 KB	Output is correct
50	Correct	30 ms	6468 KB	Output is correct
51	Correct	33 ms	6468 KB	Output is correct
52	Correct	15 ms	3368 KB	Output is correct
53	Correct	9 ms	1996 KB	Output is correct
54	Correct	27 ms	5728 KB	Output is correct
55	Correct	32 ms	6464 KB	Output is correct
56	Correct	27 ms	5956 KB	Output is correct
57	Correct	29 ms	5872 KB	Output is correct
58	Correct	33 ms	5852 KB	Output is correct
59	Correct	32 ms	5956 KB	Output is correct
60	Correct	28 ms	6084 KB	Output is correct
61	Correct	133 ms	26036 KB	Output is correct
62	Correct	146 ms	26204 KB	Output is correct
63	Correct	136 ms	26420 KB	Output is correct
64	Correct	178 ms	28708 KB	Output is correct
65	Correct	164 ms	29016 KB	Output is correct
66	Correct	162 ms	28916 KB	Output is correct
67	Correct	128 ms	24892 KB	Output is correct
68	Correct	64 ms	12612 KB	Output is correct
69	Correct	143 ms	25244 KB	Output is correct
70	Correct	173 ms	29064 KB	Output is correct
71	Correct	146 ms	26080 KB	Output is correct
72	Correct	144 ms	26520 KB	Output is correct
73	Correct	149 ms	26996 KB	Output is correct
74	Correct	158 ms	27548 KB	Output is correct
75	Correct	155 ms	27460 KB	Output is correct

Submission #497742

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