Submission #328504

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
328504	2020-11-16T18:52:06 Z	ryansee	Bigger segments (IZhO19_segments)	C++14	100 / 100	95 ms	17132 KB

segments

#include "bits/stdc++.h"
using namespace std;
 
#define FAST ios_base::sync_with_stdio(false); cin.tie(0);
#define pb push_back
#define eb emplace_back
#define ins insert
#define f first
#define s second
#define cbr cerr<<"hi\n"
#define mmst(x, v) memset((x), v, sizeof ((x)))
#define siz(x) ll(x.size())
#define all(x) (x).begin(), (x).end()
#define lbd(x,y) (lower_bound(all(x),y)-x.begin())
#define ubd(x,y) (upper_bound(all(x),y)-x.begin())
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());    //can be used by calling rng() or shuffle(A, A+n, rng)
inline long long rand(long long x, long long y) { return rng() % (y+1-x) + x; } //inclusivesss
string inline to_string(char c) {string s(1,c);return s;} template<typename T> inline T gcd(T a,T b){ return a==0?llabs(b):gcd(b%a,a); }
 
using ll=long long; 
using ld=long double;
#define FOR(i,s,e) for(ll i=s;i<=ll(e);++i)
#define DEC(i,s,e) for(ll i=s;i>=ll(e);--i)
using pi=pair<ll,ll>; using spi=pair<ll,pi>; using dpi=pair<pi,pi>; 
 
long long LLINF = 1e18;
int INF = 1e9+1e6;
#define MAXN (500006)
ll n, A[MAXN], ans;
pi l, mx[MAXN];
int main() {
	FAST
	cin>>n;
	FOR(i,1,n) cin>>A[i];
	FOR(i,1,n) A[i] += A[i-1];
	mmst(mx,-1);
	FOR(i,1,n) {
		if(~mx[i].f) if(l.s <= mx[i].s) l=mx[i];
		ll dp = l.f + 1;
		ll until = lower_bound(A+1,A+n+1,2*A[i]-A[l.s])-A;
		mx[until] = pi(dp, i);
		ans=max(ans,dp);
	}
	cout<<ans<<'\n';
}

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	8172 KB	Output is correct
2	Correct	5 ms	8172 KB	Output is correct
3	Correct	5 ms	8172 KB	Output is correct
4	Correct	5 ms	8172 KB	Output is correct
5	Correct	5 ms	8172 KB	Output is correct
6	Correct	5 ms	8172 KB	Output is correct
7	Correct	5 ms	8172 KB	Output is correct
8	Correct	5 ms	8172 KB	Output is correct
9	Correct	5 ms	8172 KB	Output is correct
10	Correct	5 ms	8172 KB	Output is correct
11	Correct	5 ms	8172 KB	Output is correct
12	Correct	5 ms	8172 KB	Output is correct
13	Correct	5 ms	8172 KB	Output is correct
14	Correct	5 ms	8172 KB	Output is correct
15	Correct	5 ms	8172 KB	Output is correct

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	8172 KB	Output is correct
2	Correct	5 ms	8172 KB	Output is correct
3	Correct	5 ms	8172 KB	Output is correct
4	Correct	5 ms	8172 KB	Output is correct
5	Correct	5 ms	8172 KB	Output is correct
6	Correct	5 ms	8172 KB	Output is correct
7	Correct	5 ms	8172 KB	Output is correct
8	Correct	5 ms	8172 KB	Output is correct
9	Correct	5 ms	8172 KB	Output is correct
10	Correct	5 ms	8172 KB	Output is correct
11	Correct	5 ms	8172 KB	Output is correct
12	Correct	5 ms	8172 KB	Output is correct
13	Correct	5 ms	8172 KB	Output is correct
14	Correct	5 ms	8172 KB	Output is correct
15	Correct	5 ms	8172 KB	Output is correct
16	Correct	6 ms	8172 KB	Output is correct
17	Correct	5 ms	8172 KB	Output is correct
18	Correct	6 ms	8172 KB	Output is correct
19	Correct	6 ms	8172 KB	Output is correct
20	Correct	5 ms	8172 KB	Output is correct
21	Correct	5 ms	8172 KB	Output is correct
22	Correct	5 ms	8172 KB	Output is correct
23	Correct	5 ms	8172 KB	Output is correct
24	Correct	5 ms	8172 KB	Output is correct
25	Correct	5 ms	8172 KB	Output is correct
26	Correct	5 ms	8172 KB	Output is correct
27	Correct	5 ms	8172 KB	Output is correct
28	Correct	5 ms	8172 KB	Output is correct
29	Correct	5 ms	8172 KB	Output is correct
30	Correct	5 ms	8172 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	8172 KB	Output is correct
2	Correct	5 ms	8172 KB	Output is correct
3	Correct	5 ms	8172 KB	Output is correct
4	Correct	5 ms	8172 KB	Output is correct
5	Correct	5 ms	8172 KB	Output is correct
6	Correct	5 ms	8172 KB	Output is correct
7	Correct	5 ms	8172 KB	Output is correct
8	Correct	5 ms	8172 KB	Output is correct
9	Correct	5 ms	8172 KB	Output is correct
10	Correct	5 ms	8172 KB	Output is correct
11	Correct	5 ms	8172 KB	Output is correct
12	Correct	5 ms	8172 KB	Output is correct
13	Correct	5 ms	8172 KB	Output is correct
14	Correct	5 ms	8172 KB	Output is correct
15	Correct	5 ms	8172 KB	Output is correct
16	Correct	6 ms	8172 KB	Output is correct
17	Correct	5 ms	8172 KB	Output is correct
18	Correct	6 ms	8172 KB	Output is correct
19	Correct	6 ms	8172 KB	Output is correct
20	Correct	5 ms	8172 KB	Output is correct
21	Correct	5 ms	8172 KB	Output is correct
22	Correct	5 ms	8172 KB	Output is correct
23	Correct	5 ms	8172 KB	Output is correct
24	Correct	5 ms	8172 KB	Output is correct
25	Correct	5 ms	8172 KB	Output is correct
26	Correct	5 ms	8172 KB	Output is correct
27	Correct	5 ms	8172 KB	Output is correct
28	Correct	5 ms	8172 KB	Output is correct
29	Correct	5 ms	8172 KB	Output is correct
30	Correct	5 ms	8172 KB	Output is correct
31	Correct	6 ms	8172 KB	Output is correct
32	Correct	5 ms	8172 KB	Output is correct
33	Correct	5 ms	8172 KB	Output is correct
34	Correct	5 ms	8172 KB	Output is correct
35	Correct	5 ms	8172 KB	Output is correct
36	Correct	5 ms	8172 KB	Output is correct
37	Correct	5 ms	8172 KB	Output is correct
38	Correct	5 ms	8192 KB	Output is correct
39	Correct	5 ms	8172 KB	Output is correct
40	Correct	5 ms	8192 KB	Output is correct
41	Correct	5 ms	8172 KB	Output is correct
42	Correct	5 ms	8172 KB	Output is correct
43	Correct	5 ms	8172 KB	Output is correct
44	Correct	5 ms	8172 KB	Output is correct
45	Correct	5 ms	8172 KB	Output is correct

Subtask #4
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	8172 KB	Output is correct
2	Correct	5 ms	8172 KB	Output is correct
3	Correct	5 ms	8172 KB	Output is correct
4	Correct	5 ms	8172 KB	Output is correct
5	Correct	5 ms	8172 KB	Output is correct
6	Correct	5 ms	8172 KB	Output is correct
7	Correct	5 ms	8172 KB	Output is correct
8	Correct	5 ms	8172 KB	Output is correct
9	Correct	5 ms	8172 KB	Output is correct
10	Correct	5 ms	8172 KB	Output is correct
11	Correct	5 ms	8172 KB	Output is correct
12	Correct	5 ms	8172 KB	Output is correct
13	Correct	5 ms	8172 KB	Output is correct
14	Correct	5 ms	8172 KB	Output is correct
15	Correct	5 ms	8172 KB	Output is correct
16	Correct	6 ms	8172 KB	Output is correct
17	Correct	5 ms	8172 KB	Output is correct
18	Correct	6 ms	8172 KB	Output is correct
19	Correct	6 ms	8172 KB	Output is correct
20	Correct	5 ms	8172 KB	Output is correct
21	Correct	5 ms	8172 KB	Output is correct
22	Correct	5 ms	8172 KB	Output is correct
23	Correct	5 ms	8172 KB	Output is correct
24	Correct	5 ms	8172 KB	Output is correct
25	Correct	5 ms	8172 KB	Output is correct
26	Correct	5 ms	8172 KB	Output is correct
27	Correct	5 ms	8172 KB	Output is correct
28	Correct	5 ms	8172 KB	Output is correct
29	Correct	5 ms	8172 KB	Output is correct
30	Correct	5 ms	8172 KB	Output is correct
31	Correct	6 ms	8172 KB	Output is correct
32	Correct	5 ms	8172 KB	Output is correct
33	Correct	5 ms	8172 KB	Output is correct
34	Correct	5 ms	8172 KB	Output is correct
35	Correct	5 ms	8172 KB	Output is correct
36	Correct	5 ms	8172 KB	Output is correct
37	Correct	5 ms	8172 KB	Output is correct
38	Correct	5 ms	8192 KB	Output is correct
39	Correct	5 ms	8172 KB	Output is correct
40	Correct	5 ms	8192 KB	Output is correct
41	Correct	5 ms	8172 KB	Output is correct
42	Correct	5 ms	8172 KB	Output is correct
43	Correct	5 ms	8172 KB	Output is correct
44	Correct	5 ms	8172 KB	Output is correct
45	Correct	5 ms	8172 KB	Output is correct
46	Correct	14 ms	9324 KB	Output is correct
47	Correct	17 ms	9324 KB	Output is correct
48	Correct	23 ms	9824 KB	Output is correct
49	Correct	22 ms	9836 KB	Output is correct
50	Correct	22 ms	9964 KB	Output is correct
51	Correct	24 ms	9964 KB	Output is correct
52	Correct	14 ms	9068 KB	Output is correct
53	Correct	10 ms	8684 KB	Output is correct
54	Correct	17 ms	9196 KB	Output is correct
55	Correct	22 ms	9964 KB	Output is correct
56	Correct	19 ms	9452 KB	Output is correct
57	Correct	17 ms	9324 KB	Output is correct
58	Correct	19 ms	9452 KB	Output is correct
59	Correct	21 ms	9580 KB	Output is correct
60	Correct	20 ms	9580 KB	Output is correct

Subtask #5
27.0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	8172 KB	Output is correct
2	Correct	5 ms	8172 KB	Output is correct
3	Correct	5 ms	8172 KB	Output is correct
4	Correct	5 ms	8172 KB	Output is correct
5	Correct	5 ms	8172 KB	Output is correct
6	Correct	5 ms	8172 KB	Output is correct
7	Correct	5 ms	8172 KB	Output is correct
8	Correct	5 ms	8172 KB	Output is correct
9	Correct	5 ms	8172 KB	Output is correct
10	Correct	5 ms	8172 KB	Output is correct
11	Correct	5 ms	8172 KB	Output is correct
12	Correct	5 ms	8172 KB	Output is correct
13	Correct	5 ms	8172 KB	Output is correct
14	Correct	5 ms	8172 KB	Output is correct
15	Correct	5 ms	8172 KB	Output is correct
16	Correct	6 ms	8172 KB	Output is correct
17	Correct	5 ms	8172 KB	Output is correct
18	Correct	6 ms	8172 KB	Output is correct
19	Correct	6 ms	8172 KB	Output is correct
20	Correct	5 ms	8172 KB	Output is correct
21	Correct	5 ms	8172 KB	Output is correct
22	Correct	5 ms	8172 KB	Output is correct
23	Correct	5 ms	8172 KB	Output is correct
24	Correct	5 ms	8172 KB	Output is correct
25	Correct	5 ms	8172 KB	Output is correct
26	Correct	5 ms	8172 KB	Output is correct
27	Correct	5 ms	8172 KB	Output is correct
28	Correct	5 ms	8172 KB	Output is correct
29	Correct	5 ms	8172 KB	Output is correct
30	Correct	5 ms	8172 KB	Output is correct
31	Correct	6 ms	8172 KB	Output is correct
32	Correct	5 ms	8172 KB	Output is correct
33	Correct	5 ms	8172 KB	Output is correct
34	Correct	5 ms	8172 KB	Output is correct
35	Correct	5 ms	8172 KB	Output is correct
36	Correct	5 ms	8172 KB	Output is correct
37	Correct	5 ms	8172 KB	Output is correct
38	Correct	5 ms	8192 KB	Output is correct
39	Correct	5 ms	8172 KB	Output is correct
40	Correct	5 ms	8192 KB	Output is correct
41	Correct	5 ms	8172 KB	Output is correct
42	Correct	5 ms	8172 KB	Output is correct
43	Correct	5 ms	8172 KB	Output is correct
44	Correct	5 ms	8172 KB	Output is correct
45	Correct	5 ms	8172 KB	Output is correct
46	Correct	14 ms	9324 KB	Output is correct
47	Correct	17 ms	9324 KB	Output is correct
48	Correct	23 ms	9824 KB	Output is correct
49	Correct	22 ms	9836 KB	Output is correct
50	Correct	22 ms	9964 KB	Output is correct
51	Correct	24 ms	9964 KB	Output is correct
52	Correct	14 ms	9068 KB	Output is correct
53	Correct	10 ms	8684 KB	Output is correct
54	Correct	17 ms	9196 KB	Output is correct
55	Correct	22 ms	9964 KB	Output is correct
56	Correct	19 ms	9452 KB	Output is correct
57	Correct	17 ms	9324 KB	Output is correct
58	Correct	19 ms	9452 KB	Output is correct
59	Correct	21 ms	9580 KB	Output is correct
60	Correct	20 ms	9580 KB	Output is correct
61	Correct	55 ms	14060 KB	Output is correct
62	Correct	58 ms	14060 KB	Output is correct
63	Correct	73 ms	14444 KB	Output is correct
64	Correct	95 ms	16620 KB	Output is correct
65	Correct	91 ms	17004 KB	Output is correct
66	Correct	95 ms	17132 KB	Output is correct
67	Correct	80 ms	15468 KB	Output is correct
68	Correct	40 ms	11628 KB	Output is correct
69	Correct	71 ms	13292 KB	Output is correct
70	Correct	91 ms	17004 KB	Output is correct
71	Correct	71 ms	14188 KB	Output is correct
72	Correct	68 ms	14444 KB	Output is correct
73	Correct	77 ms	15084 KB	Output is correct
74	Correct	79 ms	15468 KB	Output is correct
75	Correct	80 ms	15468 KB	Output is correct

Submission #328504

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