Submission #223869

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
223869	2020-04-16T17:27:49 Z	maximath_1	Mountains (NOI20_mountains)	C++11	100 / 100	581 ms	36228 KB

Mountains

#include<bits/stdc++.h>
using namespace std;
#define ll long long
const int mxn=300005;
int n;
ll fwt[mxn], h[mxn], tmp[mxn], lf[mxn], rg[mxn];
map<ll, ll>mp;
void upd(int x, int v){for(; x<mxn; x+=x&-x) fwt[x]+=v;}
int que(int x){ll ans=0; for(; x>0; x-=x&-x) ans+=fwt[x]; return ans;}
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	cin>>n;
	for(int i=0; i<n; i++){cin>>h[i]; tmp[i]=h[i];}
	sort(tmp, tmp+n); int cnt=1;
	for(int i=0; i<n; i++){
		if(i==0) mp[tmp[i]]=cnt;
		else if(tmp[i]>tmp[i-1]) {mp[tmp[i]]=cnt+1; cnt++;}
		else mp[tmp[i]]=cnt;
	}
	for(int i=0; i<n; i++) h[i]=mp[h[i]]; //coordinate compression
//	for(int i=0; i<n; i++) cout<<h[i]<<" "; cout<<endl;
	memset(fwt, 0, sizeof(fwt));
	for(int i=0; i<n; i++){
		lf[i]=que(h[i]-1);
		upd(h[i], 1);
	}
	for(int i=0; i<n; i++) rg[i]=que(h[i]-1)-lf[i];
	ll ans=0ll;
	for(int i=0; i<n; i++) ans+=lf[i]*rg[i];
	cout<<ans<<endl;
	return 0;
}

Subtask #1
2.0 / 2.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	2688 KB	Output is correct
2	Correct	205 ms	36192 KB	Output is correct
3	Correct	218 ms	36216 KB	Output is correct
4	Correct	228 ms	36220 KB	Output is correct
5	Correct	227 ms	36216 KB	Output is correct
6	Correct	231 ms	36216 KB	Output is correct
7	Correct	242 ms	36216 KB	Output is correct
8	Correct	229 ms	36228 KB	Output is correct
9	Correct	203 ms	27128 KB	Output is correct
10	Correct	210 ms	27260 KB	Output is correct

Subtask #2
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	58 ms	12664 KB	Output is correct
2	Correct	55 ms	12664 KB	Output is correct
3	Correct	54 ms	12664 KB	Output is correct
4	Correct	54 ms	12692 KB	Output is correct
5	Correct	55 ms	12664 KB	Output is correct
6	Correct	55 ms	12592 KB	Output is correct
7	Correct	55 ms	12664 KB	Output is correct
8	Correct	47 ms	12664 KB	Output is correct
9	Correct	48 ms	12664 KB	Output is correct
10	Correct	5 ms	2688 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	58 ms	12664 KB	Output is correct
2	Correct	55 ms	12664 KB	Output is correct
3	Correct	54 ms	12664 KB	Output is correct
4	Correct	54 ms	12692 KB	Output is correct
5	Correct	55 ms	12664 KB	Output is correct
6	Correct	55 ms	12592 KB	Output is correct
7	Correct	55 ms	12664 KB	Output is correct
8	Correct	47 ms	12664 KB	Output is correct
9	Correct	48 ms	12664 KB	Output is correct
10	Correct	5 ms	2688 KB	Output is correct
11	Correct	79 ms	12884 KB	Output is correct
12	Correct	77 ms	12920 KB	Output is correct
13	Correct	79 ms	12920 KB	Output is correct
14	Correct	72 ms	12920 KB	Output is correct
15	Correct	74 ms	12920 KB	Output is correct
16	Correct	73 ms	12920 KB	Output is correct
17	Correct	73 ms	12920 KB	Output is correct
18	Correct	53 ms	12920 KB	Output is correct
19	Correct	55 ms	12924 KB	Output is correct
20	Correct	5 ms	2688 KB	Output is correct

Subtask #4
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	2816 KB	Output is correct
2	Correct	6 ms	2816 KB	Output is correct
3	Correct	6 ms	2816 KB	Output is correct
4	Correct	6 ms	2816 KB	Output is correct
5	Correct	6 ms	2816 KB	Output is correct
6	Correct	6 ms	2816 KB	Output is correct
7	Correct	6 ms	2816 KB	Output is correct
8	Correct	6 ms	2816 KB	Output is correct
9	Correct	6 ms	2816 KB	Output is correct
10	Correct	5 ms	2688 KB	Output is correct

Subtask #5
28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	2816 KB	Output is correct
2	Correct	6 ms	2816 KB	Output is correct
3	Correct	6 ms	2816 KB	Output is correct
4	Correct	6 ms	2816 KB	Output is correct
5	Correct	6 ms	2816 KB	Output is correct
6	Correct	6 ms	2816 KB	Output is correct
7	Correct	6 ms	2816 KB	Output is correct
8	Correct	6 ms	2816 KB	Output is correct
9	Correct	6 ms	2816 KB	Output is correct
10	Correct	5 ms	2688 KB	Output is correct
11	Correct	12 ms	3840 KB	Output is correct
12	Correct	13 ms	3840 KB	Output is correct
13	Correct	13 ms	3840 KB	Output is correct
14	Correct	13 ms	3840 KB	Output is correct
15	Correct	13 ms	3840 KB	Output is correct
16	Correct	14 ms	3968 KB	Output is correct
17	Correct	13 ms	3840 KB	Output is correct
18	Correct	11 ms	3456 KB	Output is correct
19	Correct	9 ms	3072 KB	Output is correct
20	Correct	6 ms	2688 KB	Output is correct

Subtask #6
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	58 ms	12664 KB	Output is correct
2	Correct	55 ms	12664 KB	Output is correct
3	Correct	54 ms	12664 KB	Output is correct
4	Correct	54 ms	12692 KB	Output is correct
5	Correct	55 ms	12664 KB	Output is correct
6	Correct	55 ms	12592 KB	Output is correct
7	Correct	55 ms	12664 KB	Output is correct
8	Correct	47 ms	12664 KB	Output is correct
9	Correct	48 ms	12664 KB	Output is correct
10	Correct	5 ms	2688 KB	Output is correct
11	Correct	79 ms	12884 KB	Output is correct
12	Correct	77 ms	12920 KB	Output is correct
13	Correct	79 ms	12920 KB	Output is correct
14	Correct	72 ms	12920 KB	Output is correct
15	Correct	74 ms	12920 KB	Output is correct
16	Correct	73 ms	12920 KB	Output is correct
17	Correct	73 ms	12920 KB	Output is correct
18	Correct	53 ms	12920 KB	Output is correct
19	Correct	55 ms	12924 KB	Output is correct
20	Correct	5 ms	2688 KB	Output is correct
21	Correct	266 ms	19704 KB	Output is correct
22	Correct	236 ms	19708 KB	Output is correct
23	Correct	241 ms	19704 KB	Output is correct
24	Correct	233 ms	19704 KB	Output is correct
25	Correct	263 ms	19724 KB	Output is correct
26	Correct	242 ms	19708 KB	Output is correct
27	Correct	239 ms	19704 KB	Output is correct
28	Correct	129 ms	19704 KB	Output is correct
29	Correct	129 ms	19704 KB	Output is correct
30	Correct	6 ms	2688 KB	Output is correct

Subtask #7
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	2688 KB	Output is correct
2	Correct	205 ms	36192 KB	Output is correct
3	Correct	218 ms	36216 KB	Output is correct
4	Correct	228 ms	36220 KB	Output is correct
5	Correct	227 ms	36216 KB	Output is correct
6	Correct	231 ms	36216 KB	Output is correct
7	Correct	242 ms	36216 KB	Output is correct
8	Correct	229 ms	36228 KB	Output is correct
9	Correct	203 ms	27128 KB	Output is correct
10	Correct	210 ms	27260 KB	Output is correct
11	Correct	58 ms	12664 KB	Output is correct
12	Correct	55 ms	12664 KB	Output is correct
13	Correct	54 ms	12664 KB	Output is correct
14	Correct	54 ms	12692 KB	Output is correct
15	Correct	55 ms	12664 KB	Output is correct
16	Correct	55 ms	12592 KB	Output is correct
17	Correct	55 ms	12664 KB	Output is correct
18	Correct	47 ms	12664 KB	Output is correct
19	Correct	48 ms	12664 KB	Output is correct
20	Correct	5 ms	2688 KB	Output is correct
21	Correct	79 ms	12884 KB	Output is correct
22	Correct	77 ms	12920 KB	Output is correct
23	Correct	79 ms	12920 KB	Output is correct
24	Correct	72 ms	12920 KB	Output is correct
25	Correct	74 ms	12920 KB	Output is correct
26	Correct	73 ms	12920 KB	Output is correct
27	Correct	73 ms	12920 KB	Output is correct
28	Correct	53 ms	12920 KB	Output is correct
29	Correct	55 ms	12924 KB	Output is correct
30	Correct	5 ms	2688 KB	Output is correct
31	Correct	6 ms	2816 KB	Output is correct
32	Correct	6 ms	2816 KB	Output is correct
33	Correct	6 ms	2816 KB	Output is correct
34	Correct	6 ms	2816 KB	Output is correct
35	Correct	6 ms	2816 KB	Output is correct
36	Correct	6 ms	2816 KB	Output is correct
37	Correct	6 ms	2816 KB	Output is correct
38	Correct	6 ms	2816 KB	Output is correct
39	Correct	6 ms	2816 KB	Output is correct
40	Correct	5 ms	2688 KB	Output is correct
41	Correct	12 ms	3840 KB	Output is correct
42	Correct	13 ms	3840 KB	Output is correct
43	Correct	13 ms	3840 KB	Output is correct
44	Correct	13 ms	3840 KB	Output is correct
45	Correct	13 ms	3840 KB	Output is correct
46	Correct	14 ms	3968 KB	Output is correct
47	Correct	13 ms	3840 KB	Output is correct
48	Correct	11 ms	3456 KB	Output is correct
49	Correct	9 ms	3072 KB	Output is correct
50	Correct	6 ms	2688 KB	Output is correct
51	Correct	266 ms	19704 KB	Output is correct
52	Correct	236 ms	19708 KB	Output is correct
53	Correct	241 ms	19704 KB	Output is correct
54	Correct	233 ms	19704 KB	Output is correct
55	Correct	263 ms	19724 KB	Output is correct
56	Correct	242 ms	19708 KB	Output is correct
57	Correct	239 ms	19704 KB	Output is correct
58	Correct	129 ms	19704 KB	Output is correct
59	Correct	129 ms	19704 KB	Output is correct
60	Correct	6 ms	2688 KB	Output is correct
61	Correct	496 ms	36172 KB	Output is correct
62	Correct	564 ms	36216 KB	Output is correct
63	Correct	580 ms	36216 KB	Output is correct
64	Correct	526 ms	36216 KB	Output is correct
65	Correct	507 ms	36172 KB	Output is correct
66	Correct	503 ms	36200 KB	Output is correct
67	Correct	581 ms	36168 KB	Output is correct
68	Correct	418 ms	27256 KB	Output is correct
69	Correct	299 ms	21972 KB	Output is correct
70	Correct	6 ms	2688 KB	Output is correct

Submission #223869

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