답안 #889302

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
889302	2023-12-19T10:10:34 Z	kim	Bigger segments (IZhO19_segments)	C++17	100 / 100	130 ms	32880 KB

segments

#include<bits/stdc++.h>
using namespace std;
using ll=long long;
#define eb emplace_back

ll a[500005],qs[500005];
struct A{
	int cnt;
	ll val;
	A(int cnt_=0,ll val_=0):cnt(cnt_),val(val_){}
	bool operator<(const A&o)const{
		if(cnt!=o.cnt) return cnt>o.cnt;
		return val<o.val;
	}
	friend A operator+(A l,A r){
		l.cnt+=r.cnt;
		l.val+=r.val;
		return l;
	}
}dp[500005];
struct fenwick{
	vector<A> bit;
	void init(int n){bit=vector<A>(n);}
	void upd(int i,A x){for(;i<bit.size();i+=i&-i) bit[i]=min(bit[i],x);}
	A qr(int i){
		A x(0,0);
		for(;i>0;i-=i&-i) x=min(x,bit[i]);
		return x;
	}
}fw;

int main(){
	ios::sync_with_stdio(false); cin.tie(0);
	
	int n; cin>>n;
	vector<ll> comp;
	for(int i=1;i<=n;++i){
		cin>>a[i];
		qs[i]=qs[i-1]+a[i];
		comp.eb(qs[i]);
	}
	comp.erase(unique(comp.begin(),comp.end()),comp.end());
	fw.init(comp.size()+5);
	for(int i=1;i<=n;++i){
		dp[i]=fw.qr(lower_bound(comp.begin(),comp.end(),qs[i])-comp.begin()+1)+A(1,qs[i]);
		fw.upd(lower_bound(comp.begin(),comp.end(),qs[i]+dp[i].val)-comp.begin()+1,A(dp[i].cnt,-qs[i]));
	}
	cout<<dp[n].cnt;

	return 0;
}

Compilation message

segments.cpp: In member function 'void fenwick::upd(int, A)':
segments.cpp:24:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<A>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |  void upd(int i,A x){for(;i<bit.size();i+=i&-i) bit[i]=min(bit[i],x);}
      |                           ~^~~~~~~~~~~

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	10844 KB	Output is correct
5	Correct	2 ms	10844 KB	Output is correct
6	Correct	2 ms	10844 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10844 KB	Output is correct
9	Correct	2 ms	10844 KB	Output is correct
10	Correct	2 ms	10844 KB	Output is correct
11	Correct	2 ms	10844 KB	Output is correct
12	Correct	2 ms	10844 KB	Output is correct
13	Correct	2 ms	10844 KB	Output is correct
14	Correct	2 ms	10844 KB	Output is correct
15	Correct	2 ms	10844 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	10844 KB	Output is correct
5	Correct	2 ms	10844 KB	Output is correct
6	Correct	2 ms	10844 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10844 KB	Output is correct
9	Correct	2 ms	10844 KB	Output is correct
10	Correct	2 ms	10844 KB	Output is correct
11	Correct	2 ms	10844 KB	Output is correct
12	Correct	2 ms	10844 KB	Output is correct
13	Correct	2 ms	10844 KB	Output is correct
14	Correct	2 ms	10844 KB	Output is correct
15	Correct	2 ms	10844 KB	Output is correct
16	Correct	2 ms	10840 KB	Output is correct
17	Correct	2 ms	10844 KB	Output is correct
18	Correct	2 ms	10844 KB	Output is correct
19	Correct	2 ms	10844 KB	Output is correct
20	Correct	2 ms	10784 KB	Output is correct
21	Correct	2 ms	10844 KB	Output is correct
22	Correct	2 ms	10856 KB	Output is correct
23	Correct	2 ms	10840 KB	Output is correct
24	Correct	3 ms	10844 KB	Output is correct
25	Correct	2 ms	10844 KB	Output is correct
26	Correct	2 ms	10900 KB	Output is correct
27	Correct	2 ms	10844 KB	Output is correct
28	Correct	2 ms	10844 KB	Output is correct
29	Correct	2 ms	10840 KB	Output is correct
30	Correct	2 ms	10844 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	10844 KB	Output is correct
5	Correct	2 ms	10844 KB	Output is correct
6	Correct	2 ms	10844 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10844 KB	Output is correct
9	Correct	2 ms	10844 KB	Output is correct
10	Correct	2 ms	10844 KB	Output is correct
11	Correct	2 ms	10844 KB	Output is correct
12	Correct	2 ms	10844 KB	Output is correct
13	Correct	2 ms	10844 KB	Output is correct
14	Correct	2 ms	10844 KB	Output is correct
15	Correct	2 ms	10844 KB	Output is correct
16	Correct	2 ms	10840 KB	Output is correct
17	Correct	2 ms	10844 KB	Output is correct
18	Correct	2 ms	10844 KB	Output is correct
19	Correct	2 ms	10844 KB	Output is correct
20	Correct	2 ms	10784 KB	Output is correct
21	Correct	2 ms	10844 KB	Output is correct
22	Correct	2 ms	10856 KB	Output is correct
23	Correct	2 ms	10840 KB	Output is correct
24	Correct	3 ms	10844 KB	Output is correct
25	Correct	2 ms	10844 KB	Output is correct
26	Correct	2 ms	10900 KB	Output is correct
27	Correct	2 ms	10844 KB	Output is correct
28	Correct	2 ms	10844 KB	Output is correct
29	Correct	2 ms	10840 KB	Output is correct
30	Correct	2 ms	10844 KB	Output is correct
31	Correct	2 ms	10844 KB	Output is correct
32	Correct	2 ms	10844 KB	Output is correct
33	Correct	2 ms	10844 KB	Output is correct
34	Correct	3 ms	10844 KB	Output is correct
35	Correct	2 ms	10840 KB	Output is correct
36	Correct	3 ms	10844 KB	Output is correct
37	Correct	2 ms	10844 KB	Output is correct
38	Correct	2 ms	10844 KB	Output is correct
39	Correct	2 ms	10844 KB	Output is correct
40	Correct	3 ms	10856 KB	Output is correct
41	Correct	2 ms	10844 KB	Output is correct
42	Correct	2 ms	10844 KB	Output is correct
43	Correct	2 ms	10840 KB	Output is correct
44	Correct	2 ms	10844 KB	Output is correct
45	Correct	2 ms	10900 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	10844 KB	Output is correct
5	Correct	2 ms	10844 KB	Output is correct
6	Correct	2 ms	10844 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10844 KB	Output is correct
9	Correct	2 ms	10844 KB	Output is correct
10	Correct	2 ms	10844 KB	Output is correct
11	Correct	2 ms	10844 KB	Output is correct
12	Correct	2 ms	10844 KB	Output is correct
13	Correct	2 ms	10844 KB	Output is correct
14	Correct	2 ms	10844 KB	Output is correct
15	Correct	2 ms	10844 KB	Output is correct
16	Correct	2 ms	10840 KB	Output is correct
17	Correct	2 ms	10844 KB	Output is correct
18	Correct	2 ms	10844 KB	Output is correct
19	Correct	2 ms	10844 KB	Output is correct
20	Correct	2 ms	10784 KB	Output is correct
21	Correct	2 ms	10844 KB	Output is correct
22	Correct	2 ms	10856 KB	Output is correct
23	Correct	2 ms	10840 KB	Output is correct
24	Correct	3 ms	10844 KB	Output is correct
25	Correct	2 ms	10844 KB	Output is correct
26	Correct	2 ms	10900 KB	Output is correct
27	Correct	2 ms	10844 KB	Output is correct
28	Correct	2 ms	10844 KB	Output is correct
29	Correct	2 ms	10840 KB	Output is correct
30	Correct	2 ms	10844 KB	Output is correct
31	Correct	2 ms	10844 KB	Output is correct
32	Correct	2 ms	10844 KB	Output is correct
33	Correct	2 ms	10844 KB	Output is correct
34	Correct	3 ms	10844 KB	Output is correct
35	Correct	2 ms	10840 KB	Output is correct
36	Correct	3 ms	10844 KB	Output is correct
37	Correct	2 ms	10844 KB	Output is correct
38	Correct	2 ms	10844 KB	Output is correct
39	Correct	2 ms	10844 KB	Output is correct
40	Correct	3 ms	10856 KB	Output is correct
41	Correct	2 ms	10844 KB	Output is correct
42	Correct	2 ms	10844 KB	Output is correct
43	Correct	2 ms	10840 KB	Output is correct
44	Correct	2 ms	10844 KB	Output is correct
45	Correct	2 ms	10900 KB	Output is correct
46	Correct	17 ms	17364 KB	Output is correct
47	Correct	22 ms	17880 KB	Output is correct
48	Correct	26 ms	18420 KB	Output is correct
49	Correct	24 ms	18436 KB	Output is correct
50	Correct	24 ms	18392 KB	Output is correct
51	Correct	27 ms	18384 KB	Output is correct
52	Correct	14 ms	12752 KB	Output is correct
53	Correct	9 ms	11896 KB	Output is correct
54	Correct	22 ms	17716 KB	Output is correct
55	Correct	27 ms	18388 KB	Output is correct
56	Correct	22 ms	17880 KB	Output is correct
57	Correct	20 ms	17692 KB	Output is correct
58	Correct	21 ms	17880 KB	Output is correct
59	Correct	22 ms	17880 KB	Output is correct
60	Correct	24 ms	18128 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	10844 KB	Output is correct
5	Correct	2 ms	10844 KB	Output is correct
6	Correct	2 ms	10844 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10844 KB	Output is correct
9	Correct	2 ms	10844 KB	Output is correct
10	Correct	2 ms	10844 KB	Output is correct
11	Correct	2 ms	10844 KB	Output is correct
12	Correct	2 ms	10844 KB	Output is correct
13	Correct	2 ms	10844 KB	Output is correct
14	Correct	2 ms	10844 KB	Output is correct
15	Correct	2 ms	10844 KB	Output is correct
16	Correct	2 ms	10840 KB	Output is correct
17	Correct	2 ms	10844 KB	Output is correct
18	Correct	2 ms	10844 KB	Output is correct
19	Correct	2 ms	10844 KB	Output is correct
20	Correct	2 ms	10784 KB	Output is correct
21	Correct	2 ms	10844 KB	Output is correct
22	Correct	2 ms	10856 KB	Output is correct
23	Correct	2 ms	10840 KB	Output is correct
24	Correct	3 ms	10844 KB	Output is correct
25	Correct	2 ms	10844 KB	Output is correct
26	Correct	2 ms	10900 KB	Output is correct
27	Correct	2 ms	10844 KB	Output is correct
28	Correct	2 ms	10844 KB	Output is correct
29	Correct	2 ms	10840 KB	Output is correct
30	Correct	2 ms	10844 KB	Output is correct
31	Correct	2 ms	10844 KB	Output is correct
32	Correct	2 ms	10844 KB	Output is correct
33	Correct	2 ms	10844 KB	Output is correct
34	Correct	3 ms	10844 KB	Output is correct
35	Correct	2 ms	10840 KB	Output is correct
36	Correct	3 ms	10844 KB	Output is correct
37	Correct	2 ms	10844 KB	Output is correct
38	Correct	2 ms	10844 KB	Output is correct
39	Correct	2 ms	10844 KB	Output is correct
40	Correct	3 ms	10856 KB	Output is correct
41	Correct	2 ms	10844 KB	Output is correct
42	Correct	2 ms	10844 KB	Output is correct
43	Correct	2 ms	10840 KB	Output is correct
44	Correct	2 ms	10844 KB	Output is correct
45	Correct	2 ms	10900 KB	Output is correct
46	Correct	17 ms	17364 KB	Output is correct
47	Correct	22 ms	17880 KB	Output is correct
48	Correct	26 ms	18420 KB	Output is correct
49	Correct	24 ms	18436 KB	Output is correct
50	Correct	24 ms	18392 KB	Output is correct
51	Correct	27 ms	18384 KB	Output is correct
52	Correct	14 ms	12752 KB	Output is correct
53	Correct	9 ms	11896 KB	Output is correct
54	Correct	22 ms	17716 KB	Output is correct
55	Correct	27 ms	18388 KB	Output is correct
56	Correct	22 ms	17880 KB	Output is correct
57	Correct	20 ms	17692 KB	Output is correct
58	Correct	21 ms	17880 KB	Output is correct
59	Correct	22 ms	17880 KB	Output is correct
60	Correct	24 ms	18128 KB	Output is correct
61	Correct	92 ms	29896 KB	Output is correct
62	Correct	86 ms	29940 KB	Output is correct
63	Correct	101 ms	30336 KB	Output is correct
64	Correct	125 ms	32704 KB	Output is correct
65	Correct	113 ms	32716 KB	Output is correct
66	Correct	130 ms	32640 KB	Output is correct
67	Correct	102 ms	28716 KB	Output is correct
68	Correct	54 ms	21756 KB	Output is correct
69	Correct	111 ms	28844 KB	Output is correct
70	Correct	128 ms	32880 KB	Output is correct
71	Correct	104 ms	29896 KB	Output is correct
72	Correct	111 ms	30640 KB	Output is correct
73	Correct	102 ms	30872 KB	Output is correct
74	Correct	105 ms	31272 KB	Output is correct
75	Correct	109 ms	31064 KB	Output is correct

답안 #889302

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