Submission #201374

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
201374	2020-02-10T10:32:08 Z	guangxuan	Bigger segments (IZhO19_segments)	C++14	73 / 100	669 ms	262144 KB

segments

#include <bits/stdc++.h>

using namespace std;

int a[500009];
long long rs[500009];
pair<int,long long> dp[500009];

struct node{
	pair<int,long long> v;
	node *l,*r;
	node():v({-1,-1}),l(NULL),r(NULL){}
	void up(long long s,long long e,long long x,pair<int,long long> uv){
		long long m = (s+e)/2;
		if(s==e){
			v = max(v,uv);return;
		}
		if(x>m){
			if(r==NULL)r = new node();
			r->up(m+1,e,x,uv);
		}
		else{
			if(l==NULL)l = new node();
			l->up(s,m,x,uv);
		}
		v = {-1,-1};
		if(r)v = max(v,r->v);
		if(l)v = max(v,l->v);
	}
	pair<int,long long> qu(long long s,long long e,long long x,long long y){
		long long m = (s+e)/2;
		if(s==x&&e==y)return v;
		if(x>m){
			if(r)return r->qu(m+1,e,x,y);
			else return {-1,-1};
		}
		if(y<=m){
			if(l)return l->qu(s,m,x,y);
			else return {-1,-1};
		}
		pair<int,long long> qv = {-1,-1};
		if(r)qv = max(qv,r->qu(m+1,e,m+1,y));
		if(l)qv = max(qv,l->qu(s,m,x,m));
		return qv;
	}
}*root;

int main(){
	int n;
	scanf("%d",&n);
	for(int i=0;i<n;i++){
		scanf("%d",&a[i]);
		rs[i+1]=rs[i]+a[i];
	}
	root = new node();
	root->up(0,(long long)5e14,0,{0,0});
	for(int i=1;i<=n;i++){
		pair<int,long long> res = root->qu(0,(long long)5e14,0,rs[i]); 
		dp[i] = {res.first,res.second - rs[i]};
		dp[i].first++;
		root->up(0,(long long)5e14,rs[i] - dp[i].second,{dp[i].first,rs[i]});
		//cout << dp[i].first << ' ' << dp[i].second << '\n';
		// cout << res.first << ' ' << res.second.first << ' ' << res.second.second << '\n';
	}
	printf("%d", dp[n].first);
}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:50:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
segments.cpp:52:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
   ~~~~~^~~~~~~~~~~~

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	380 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	6 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	5 ms	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	380 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	6 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	5 ms	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	6 ms	760 KB	Output is correct
17	Correct	6 ms	888 KB	Output is correct
18	Correct	7 ms	1016 KB	Output is correct
19	Correct	6 ms	1016 KB	Output is correct
20	Correct	6 ms	1016 KB	Output is correct
21	Correct	6 ms	1144 KB	Output is correct
22	Correct	6 ms	888 KB	Output is correct
23	Correct	5 ms	760 KB	Output is correct
24	Correct	5 ms	504 KB	Output is correct
25	Correct	6 ms	1016 KB	Output is correct
26	Correct	5 ms	504 KB	Output is correct
27	Correct	5 ms	376 KB	Output is correct
28	Correct	5 ms	376 KB	Output is correct
29	Correct	6 ms	632 KB	Output is correct
30	Correct	5 ms	632 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	380 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	6 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	5 ms	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	6 ms	760 KB	Output is correct
17	Correct	6 ms	888 KB	Output is correct
18	Correct	7 ms	1016 KB	Output is correct
19	Correct	6 ms	1016 KB	Output is correct
20	Correct	6 ms	1016 KB	Output is correct
21	Correct	6 ms	1144 KB	Output is correct
22	Correct	6 ms	888 KB	Output is correct
23	Correct	5 ms	760 KB	Output is correct
24	Correct	5 ms	504 KB	Output is correct
25	Correct	6 ms	1016 KB	Output is correct
26	Correct	5 ms	504 KB	Output is correct
27	Correct	5 ms	376 KB	Output is correct
28	Correct	5 ms	376 KB	Output is correct
29	Correct	6 ms	632 KB	Output is correct
30	Correct	5 ms	632 KB	Output is correct
31	Correct	9 ms	2808 KB	Output is correct
32	Correct	13 ms	3448 KB	Output is correct
33	Correct	11 ms	3960 KB	Output is correct
34	Correct	12 ms	3832 KB	Output is correct
35	Correct	14 ms	4728 KB	Output is correct
36	Correct	12 ms	4728 KB	Output is correct
37	Correct	10 ms	3960 KB	Output is correct
38	Correct	9 ms	3192 KB	Output is correct
39	Correct	8 ms	888 KB	Output is correct
40	Correct	12 ms	4476 KB	Output is correct
41	Correct	8 ms	1016 KB	Output is correct
42	Correct	9 ms	1656 KB	Output is correct
43	Correct	8 ms	888 KB	Output is correct
44	Correct	9 ms	2168 KB	Output is correct
45	Correct	9 ms	2168 KB	Output is correct

Subtask #4
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	380 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	6 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	5 ms	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	6 ms	760 KB	Output is correct
17	Correct	6 ms	888 KB	Output is correct
18	Correct	7 ms	1016 KB	Output is correct
19	Correct	6 ms	1016 KB	Output is correct
20	Correct	6 ms	1016 KB	Output is correct
21	Correct	6 ms	1144 KB	Output is correct
22	Correct	6 ms	888 KB	Output is correct
23	Correct	5 ms	760 KB	Output is correct
24	Correct	5 ms	504 KB	Output is correct
25	Correct	6 ms	1016 KB	Output is correct
26	Correct	5 ms	504 KB	Output is correct
27	Correct	5 ms	376 KB	Output is correct
28	Correct	5 ms	376 KB	Output is correct
29	Correct	6 ms	632 KB	Output is correct
30	Correct	5 ms	632 KB	Output is correct
31	Correct	9 ms	2808 KB	Output is correct
32	Correct	13 ms	3448 KB	Output is correct
33	Correct	11 ms	3960 KB	Output is correct
34	Correct	12 ms	3832 KB	Output is correct
35	Correct	14 ms	4728 KB	Output is correct
36	Correct	12 ms	4728 KB	Output is correct
37	Correct	10 ms	3960 KB	Output is correct
38	Correct	9 ms	3192 KB	Output is correct
39	Correct	8 ms	888 KB	Output is correct
40	Correct	12 ms	4476 KB	Output is correct
41	Correct	8 ms	1016 KB	Output is correct
42	Correct	9 ms	1656 KB	Output is correct
43	Correct	8 ms	888 KB	Output is correct
44	Correct	9 ms	2168 KB	Output is correct
45	Correct	9 ms	2168 KB	Output is correct
46	Correct	131 ms	54884 KB	Output is correct
47	Correct	158 ms	62384 KB	Output is correct
48	Correct	223 ms	124280 KB	Output is correct
49	Correct	236 ms	133752 KB	Output is correct
50	Correct	258 ms	148032 KB	Output is correct
51	Correct	247 ms	145400 KB	Output is correct
52	Correct	124 ms	73084 KB	Output is correct
53	Correct	77 ms	44024 KB	Output is correct
54	Correct	115 ms	20476 KB	Output is correct
55	Correct	251 ms	140664 KB	Output is correct
56	Correct	162 ms	65144 KB	Output is correct
57	Correct	152 ms	54008 KB	Output is correct
58	Correct	177 ms	59512 KB	Output is correct
59	Correct	195 ms	84088 KB	Output is correct
60	Correct	193 ms	83832 KB	Output is correct

Subtask #5
0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	380 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	6 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	5 ms	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	6 ms	760 KB	Output is correct
17	Correct	6 ms	888 KB	Output is correct
18	Correct	7 ms	1016 KB	Output is correct
19	Correct	6 ms	1016 KB	Output is correct
20	Correct	6 ms	1016 KB	Output is correct
21	Correct	6 ms	1144 KB	Output is correct
22	Correct	6 ms	888 KB	Output is correct
23	Correct	5 ms	760 KB	Output is correct
24	Correct	5 ms	504 KB	Output is correct
25	Correct	6 ms	1016 KB	Output is correct
26	Correct	5 ms	504 KB	Output is correct
27	Correct	5 ms	376 KB	Output is correct
28	Correct	5 ms	376 KB	Output is correct
29	Correct	6 ms	632 KB	Output is correct
30	Correct	5 ms	632 KB	Output is correct
31	Correct	9 ms	2808 KB	Output is correct
32	Correct	13 ms	3448 KB	Output is correct
33	Correct	11 ms	3960 KB	Output is correct
34	Correct	12 ms	3832 KB	Output is correct
35	Correct	14 ms	4728 KB	Output is correct
36	Correct	12 ms	4728 KB	Output is correct
37	Correct	10 ms	3960 KB	Output is correct
38	Correct	9 ms	3192 KB	Output is correct
39	Correct	8 ms	888 KB	Output is correct
40	Correct	12 ms	4476 KB	Output is correct
41	Correct	8 ms	1016 KB	Output is correct
42	Correct	9 ms	1656 KB	Output is correct
43	Correct	8 ms	888 KB	Output is correct
44	Correct	9 ms	2168 KB	Output is correct
45	Correct	9 ms	2168 KB	Output is correct
46	Correct	131 ms	54884 KB	Output is correct
47	Correct	158 ms	62384 KB	Output is correct
48	Correct	223 ms	124280 KB	Output is correct
49	Correct	236 ms	133752 KB	Output is correct
50	Correct	258 ms	148032 KB	Output is correct
51	Correct	247 ms	145400 KB	Output is correct
52	Correct	124 ms	73084 KB	Output is correct
53	Correct	77 ms	44024 KB	Output is correct
54	Correct	115 ms	20476 KB	Output is correct
55	Correct	251 ms	140664 KB	Output is correct
56	Correct	162 ms	65144 KB	Output is correct
57	Correct	152 ms	54008 KB	Output is correct
58	Correct	177 ms	59512 KB	Output is correct
59	Correct	195 ms	84088 KB	Output is correct
60	Correct	193 ms	83832 KB	Output is correct
61	Correct	608 ms	253280 KB	Output is correct
62	Correct	661 ms	244344 KB	Output is correct
63	Runtime error	669 ms	262144 KB	Execution killed with signal 9 (could be triggered by violating memory limits)
64	Halted	0 ms	0 KB	-

Submission #201374

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 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
0 / 27.0