Submission #230992

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
230992	2020-05-12T09:29:08 Z	keta_tsimakuridze	Mountains (NOI20_mountains)	C++14	100 / 100	1047 ms	34296 KB

Mountains

#include<bits/stdc++.h>
using namespace std;
long long n,a[300005],b[300005],tree_bef[600005],tree_aft[600005],i,k,ans;
map<long long,int>ind;
void update(int idx,int val,int w){
	for(int x=idx;x<=n;x+=x&(-x)){
		if(w==1){
		tree_aft[x]+=val; } 
		else tree_bef[x]+=val;
	}
}

long long getans(int idx,int w){
	long long pas=0;
	for(int x=idx;x>=1;x-=x&(-x)){
	  if(w==1)	pas+=tree_aft[x];
	  else pas+=tree_bef[x];
	}
	return pas;
}

int main(){
	cin>>n;
	for(k=1;k<=n;k++){
		cin>>a[k];
		b[k]=a[k];
	}
	sort(b+1,b+n+1);
	for(k=1;k<=n;k++){
		if(!ind[b[k]]){
			i++;
			ind[b[k]]=i; 
		}
		
		update(ind[b[k]],1,1);
	} 
	for(k=1;k<=n;k++){
		update(ind[a[k]],-1,1);
		update(ind[a[k]],1,2);
		ans+=getans(ind[a[k]]-1,1)*getans(ind[a[k]]-1,2);
		//cout<<ans<<endl;
	}
	cout<<ans;
}

Subtask #1
2.0 / 2.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	641 ms	34296 KB	Output is correct
3	Correct	641 ms	34296 KB	Output is correct
4	Correct	636 ms	34044 KB	Output is correct
5	Correct	632 ms	34168 KB	Output is correct
6	Correct	639 ms	34168 KB	Output is correct
7	Correct	639 ms	34040 KB	Output is correct
8	Correct	639 ms	34040 KB	Output is correct
9	Correct	581 ms	22776 KB	Output is correct
10	Correct	578 ms	22904 KB	Output is correct

Subtask #2
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	113 ms	5752 KB	Output is correct
2	Correct	116 ms	5624 KB	Output is correct
3	Correct	115 ms	5752 KB	Output is correct
4	Correct	119 ms	5836 KB	Output is correct
5	Correct	119 ms	5752 KB	Output is correct
6	Correct	113 ms	5624 KB	Output is correct
7	Correct	115 ms	5752 KB	Output is correct
8	Correct	107 ms	5752 KB	Output is correct
9	Correct	111 ms	5624 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	113 ms	5752 KB	Output is correct
2	Correct	116 ms	5624 KB	Output is correct
3	Correct	115 ms	5752 KB	Output is correct
4	Correct	119 ms	5836 KB	Output is correct
5	Correct	119 ms	5752 KB	Output is correct
6	Correct	113 ms	5624 KB	Output is correct
7	Correct	115 ms	5752 KB	Output is correct
8	Correct	107 ms	5752 KB	Output is correct
9	Correct	111 ms	5624 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	161 ms	6008 KB	Output is correct
12	Correct	161 ms	6008 KB	Output is correct
13	Correct	163 ms	5956 KB	Output is correct
14	Correct	161 ms	6008 KB	Output is correct
15	Correct	156 ms	6008 KB	Output is correct
16	Correct	162 ms	6008 KB	Output is correct
17	Correct	163 ms	6008 KB	Output is correct
18	Correct	131 ms	6008 KB	Output is correct
19	Correct	132 ms	6008 KB	Output is correct
20	Correct	4 ms	384 KB	Output is correct

Subtask #4
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	416 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	6 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct

Subtask #5
28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	416 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	6 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	24 ms	1536 KB	Output is correct
12	Correct	25 ms	1536 KB	Output is correct
13	Correct	25 ms	1408 KB	Output is correct
14	Correct	25 ms	1536 KB	Output is correct
15	Correct	25 ms	1408 KB	Output is correct
16	Correct	25 ms	1408 KB	Output is correct
17	Correct	25 ms	1408 KB	Output is correct
18	Correct	22 ms	1024 KB	Output is correct
19	Correct	11 ms	640 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct

Subtask #6
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	113 ms	5752 KB	Output is correct
2	Correct	116 ms	5624 KB	Output is correct
3	Correct	115 ms	5752 KB	Output is correct
4	Correct	119 ms	5836 KB	Output is correct
5	Correct	119 ms	5752 KB	Output is correct
6	Correct	113 ms	5624 KB	Output is correct
7	Correct	115 ms	5752 KB	Output is correct
8	Correct	107 ms	5752 KB	Output is correct
9	Correct	111 ms	5624 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	161 ms	6008 KB	Output is correct
12	Correct	161 ms	6008 KB	Output is correct
13	Correct	163 ms	5956 KB	Output is correct
14	Correct	161 ms	6008 KB	Output is correct
15	Correct	156 ms	6008 KB	Output is correct
16	Correct	162 ms	6008 KB	Output is correct
17	Correct	163 ms	6008 KB	Output is correct
18	Correct	131 ms	6008 KB	Output is correct
19	Correct	132 ms	6008 KB	Output is correct
20	Correct	4 ms	384 KB	Output is correct
21	Correct	569 ms	14200 KB	Output is correct
22	Correct	593 ms	14328 KB	Output is correct
23	Correct	620 ms	14276 KB	Output is correct
24	Correct	594 ms	14328 KB	Output is correct
25	Correct	567 ms	14284 KB	Output is correct
26	Correct	579 ms	14456 KB	Output is correct
27	Correct	587 ms	14328 KB	Output is correct
28	Correct	351 ms	14200 KB	Output is correct
29	Correct	357 ms	14328 KB	Output is correct
30	Correct	4 ms	384 KB	Output is correct

Subtask #7
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	641 ms	34296 KB	Output is correct
3	Correct	641 ms	34296 KB	Output is correct
4	Correct	636 ms	34044 KB	Output is correct
5	Correct	632 ms	34168 KB	Output is correct
6	Correct	639 ms	34168 KB	Output is correct
7	Correct	639 ms	34040 KB	Output is correct
8	Correct	639 ms	34040 KB	Output is correct
9	Correct	581 ms	22776 KB	Output is correct
10	Correct	578 ms	22904 KB	Output is correct
11	Correct	113 ms	5752 KB	Output is correct
12	Correct	116 ms	5624 KB	Output is correct
13	Correct	115 ms	5752 KB	Output is correct
14	Correct	119 ms	5836 KB	Output is correct
15	Correct	119 ms	5752 KB	Output is correct
16	Correct	113 ms	5624 KB	Output is correct
17	Correct	115 ms	5752 KB	Output is correct
18	Correct	107 ms	5752 KB	Output is correct
19	Correct	111 ms	5624 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct
21	Correct	161 ms	6008 KB	Output is correct
22	Correct	161 ms	6008 KB	Output is correct
23	Correct	163 ms	5956 KB	Output is correct
24	Correct	161 ms	6008 KB	Output is correct
25	Correct	156 ms	6008 KB	Output is correct
26	Correct	162 ms	6008 KB	Output is correct
27	Correct	163 ms	6008 KB	Output is correct
28	Correct	131 ms	6008 KB	Output is correct
29	Correct	132 ms	6008 KB	Output is correct
30	Correct	4 ms	384 KB	Output is correct
31	Correct	5 ms	416 KB	Output is correct
32	Correct	5 ms	384 KB	Output is correct
33	Correct	5 ms	384 KB	Output is correct
34	Correct	5 ms	384 KB	Output is correct
35	Correct	5 ms	384 KB	Output is correct
36	Correct	5 ms	384 KB	Output is correct
37	Correct	5 ms	384 KB	Output is correct
38	Correct	6 ms	384 KB	Output is correct
39	Correct	5 ms	384 KB	Output is correct
40	Correct	5 ms	384 KB	Output is correct
41	Correct	24 ms	1536 KB	Output is correct
42	Correct	25 ms	1536 KB	Output is correct
43	Correct	25 ms	1408 KB	Output is correct
44	Correct	25 ms	1536 KB	Output is correct
45	Correct	25 ms	1408 KB	Output is correct
46	Correct	25 ms	1408 KB	Output is correct
47	Correct	25 ms	1408 KB	Output is correct
48	Correct	22 ms	1024 KB	Output is correct
49	Correct	11 ms	640 KB	Output is correct
50	Correct	5 ms	384 KB	Output is correct
51	Correct	569 ms	14200 KB	Output is correct
52	Correct	593 ms	14328 KB	Output is correct
53	Correct	620 ms	14276 KB	Output is correct
54	Correct	594 ms	14328 KB	Output is correct
55	Correct	567 ms	14284 KB	Output is correct
56	Correct	579 ms	14456 KB	Output is correct
57	Correct	587 ms	14328 KB	Output is correct
58	Correct	351 ms	14200 KB	Output is correct
59	Correct	357 ms	14328 KB	Output is correct
60	Correct	4 ms	384 KB	Output is correct
61	Correct	1018 ms	34172 KB	Output is correct
62	Correct	1004 ms	34108 KB	Output is correct
63	Correct	1026 ms	34168 KB	Output is correct
64	Correct	1047 ms	34168 KB	Output is correct
65	Correct	1012 ms	34168 KB	Output is correct
66	Correct	1012 ms	34168 KB	Output is correct
67	Correct	1043 ms	34168 KB	Output is correct
68	Correct	889 ms	23008 KB	Output is correct
69	Correct	645 ms	17016 KB	Output is correct
70	Correct	5 ms	384 KB	Output is correct

Submission #230992

Compilation message

Subtask #1 2.0 / 2.0

Subtask #2 4.0 / 4.0

Subtask #3 9.0 / 9.0

Subtask #4 36.0 / 36.0

Subtask #5 28.0 / 28.0

Subtask #6 9.0 / 9.0

Subtask #7 12.0 / 12.0

Subtask #1
2.0 / 2.0

Subtask #2
4.0 / 4.0

Subtask #3
9.0 / 9.0

Subtask #4
36.0 / 36.0

Subtask #5
28.0 / 28.0

Subtask #6
9.0 / 9.0

Subtask #7
12.0 / 12.0