Submission #285594

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
285594	2020-08-29T10:05:03 Z	Ronin13	Mountains (NOI20_mountains)	C++14	100 / 100	1228 ms	111352 KB

Mountains

#include<bits/stdc++.h>
#define ll long long
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define ull unsigned ll
#define pb push_back
#define mp make_pair
 
using namespace std;

int n;
ll a[300001];
vector<ll>t[2000001];

void build(int v,int l,int r){
	if(l==r){
		t[v].pb(a[l]);
		return;
	}
	int m=(l+r)/2;
	build(2*v,l,m);
	build(2*v+1,m+1,r);
	t[v].resize((int)t[2*v].size()+(int)t[2*v+1].size());
	merge(t[2*v].begin(),t[2*v].end(),t[2*v+1].begin(),t[2*v+1].end(),t[v].begin());
}

ll get(int v,int l,int r,int tl,int tr,ll val){
	if(l==tl&&r==tr){
		ll k=lower_bound(t[v].begin(),t[v].end(),val)-t[v].begin();
		return k;
	}
	int tm=(tl+tr)/2;
	if(r<=tm)return get(2*v,l,r,tl,tm,val);
	if(l>tm)return get(2*v+1,l,r,tm+1,tr,val);
	return get(2*v,l,tm,tl,tm,val)+get(2*v+1,tm+1,r,tm+1,tr,val);
}

ll ans=0;

int main(){
	cin>>n;
	for(int i=1;i<=n;i++)cin>>a[i];
	build(1,1,n);
	for(int i=2;i<n;i++){
		ans+=get(1,1,i-1,1,n,a[i])*get(1,i+1,n,1,n,a[i]);
	}
	cout<<ans;
}

Subtask #1
2.0 / 2.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	34 ms	47232 KB	Output is correct
2	Correct	757 ms	111352 KB	Output is correct
3	Correct	745 ms	109020 KB	Output is correct
4	Correct	744 ms	109052 KB	Output is correct
5	Correct	754 ms	109048 KB	Output is correct
6	Correct	750 ms	109048 KB	Output is correct
7	Correct	746 ms	109176 KB	Output is correct
8	Correct	748 ms	109048 KB	Output is correct
9	Correct	772 ms	109048 KB	Output is correct
10	Correct	762 ms	109176 KB	Output is correct

Subtask #2
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	427 ms	105720 KB	Output is correct
2	Correct	439 ms	105720 KB	Output is correct
3	Correct	437 ms	105848 KB	Output is correct
4	Correct	432 ms	105848 KB	Output is correct
5	Correct	431 ms	105848 KB	Output is correct
6	Correct	441 ms	105724 KB	Output is correct
7	Correct	436 ms	105768 KB	Output is correct
8	Correct	429 ms	105720 KB	Output is correct
9	Correct	417 ms	105720 KB	Output is correct
10	Correct	31 ms	47224 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	427 ms	105720 KB	Output is correct
2	Correct	439 ms	105720 KB	Output is correct
3	Correct	437 ms	105848 KB	Output is correct
4	Correct	432 ms	105848 KB	Output is correct
5	Correct	431 ms	105848 KB	Output is correct
6	Correct	441 ms	105724 KB	Output is correct
7	Correct	436 ms	105768 KB	Output is correct
8	Correct	429 ms	105720 KB	Output is correct
9	Correct	417 ms	105720 KB	Output is correct
10	Correct	31 ms	47224 KB	Output is correct
11	Correct	706 ms	105776 KB	Output is correct
12	Correct	710 ms	105848 KB	Output is correct
13	Correct	706 ms	105976 KB	Output is correct
14	Correct	711 ms	106008 KB	Output is correct
15	Correct	711 ms	105848 KB	Output is correct
16	Correct	723 ms	105976 KB	Output is correct
17	Correct	709 ms	105848 KB	Output is correct
18	Correct	430 ms	105924 KB	Output is correct
19	Correct	419 ms	105720 KB	Output is correct
20	Correct	32 ms	47224 KB	Output is correct

Subtask #4
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	34 ms	47488 KB	Output is correct
2	Correct	33 ms	47352 KB	Output is correct
3	Correct	33 ms	47352 KB	Output is correct
4	Correct	33 ms	47360 KB	Output is correct
5	Correct	33 ms	47424 KB	Output is correct
6	Correct	33 ms	47352 KB	Output is correct
7	Correct	35 ms	47360 KB	Output is correct
8	Correct	35 ms	47360 KB	Output is correct
9	Correct	33 ms	47352 KB	Output is correct
10	Correct	32 ms	47224 KB	Output is correct

Subtask #5
28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	34 ms	47488 KB	Output is correct
2	Correct	33 ms	47352 KB	Output is correct
3	Correct	33 ms	47352 KB	Output is correct
4	Correct	33 ms	47360 KB	Output is correct
5	Correct	33 ms	47424 KB	Output is correct
6	Correct	33 ms	47352 KB	Output is correct
7	Correct	35 ms	47360 KB	Output is correct
8	Correct	35 ms	47360 KB	Output is correct
9	Correct	33 ms	47352 KB	Output is correct
10	Correct	32 ms	47224 KB	Output is correct
11	Correct	61 ms	49016 KB	Output is correct
12	Correct	58 ms	49016 KB	Output is correct
13	Correct	58 ms	49016 KB	Output is correct
14	Correct	60 ms	49016 KB	Output is correct
15	Correct	59 ms	49092 KB	Output is correct
16	Correct	59 ms	49016 KB	Output is correct
17	Correct	59 ms	49016 KB	Output is correct
18	Correct	59 ms	49144 KB	Output is correct
19	Correct	48 ms	48888 KB	Output is correct
20	Correct	33 ms	47232 KB	Output is correct

Subtask #6
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	427 ms	105720 KB	Output is correct
2	Correct	439 ms	105720 KB	Output is correct
3	Correct	437 ms	105848 KB	Output is correct
4	Correct	432 ms	105848 KB	Output is correct
5	Correct	431 ms	105848 KB	Output is correct
6	Correct	441 ms	105724 KB	Output is correct
7	Correct	436 ms	105768 KB	Output is correct
8	Correct	429 ms	105720 KB	Output is correct
9	Correct	417 ms	105720 KB	Output is correct
10	Correct	31 ms	47224 KB	Output is correct
11	Correct	706 ms	105776 KB	Output is correct
12	Correct	710 ms	105848 KB	Output is correct
13	Correct	706 ms	105976 KB	Output is correct
14	Correct	711 ms	106008 KB	Output is correct
15	Correct	711 ms	105848 KB	Output is correct
16	Correct	723 ms	105976 KB	Output is correct
17	Correct	709 ms	105848 KB	Output is correct
18	Correct	430 ms	105924 KB	Output is correct
19	Correct	419 ms	105720 KB	Output is correct
20	Correct	32 ms	47224 KB	Output is correct
21	Correct	856 ms	105924 KB	Output is correct
22	Correct	907 ms	105940 KB	Output is correct
23	Correct	875 ms	105720 KB	Output is correct
24	Correct	877 ms	105784 KB	Output is correct
25	Correct	855 ms	105848 KB	Output is correct
26	Correct	870 ms	105848 KB	Output is correct
27	Correct	904 ms	105840 KB	Output is correct
28	Correct	483 ms	105976 KB	Output is correct
29	Correct	486 ms	105776 KB	Output is correct
30	Correct	34 ms	47352 KB	Output is correct

Subtask #7
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	34 ms	47232 KB	Output is correct
2	Correct	757 ms	111352 KB	Output is correct
3	Correct	745 ms	109020 KB	Output is correct
4	Correct	744 ms	109052 KB	Output is correct
5	Correct	754 ms	109048 KB	Output is correct
6	Correct	750 ms	109048 KB	Output is correct
7	Correct	746 ms	109176 KB	Output is correct
8	Correct	748 ms	109048 KB	Output is correct
9	Correct	772 ms	109048 KB	Output is correct
10	Correct	762 ms	109176 KB	Output is correct
11	Correct	427 ms	105720 KB	Output is correct
12	Correct	439 ms	105720 KB	Output is correct
13	Correct	437 ms	105848 KB	Output is correct
14	Correct	432 ms	105848 KB	Output is correct
15	Correct	431 ms	105848 KB	Output is correct
16	Correct	441 ms	105724 KB	Output is correct
17	Correct	436 ms	105768 KB	Output is correct
18	Correct	429 ms	105720 KB	Output is correct
19	Correct	417 ms	105720 KB	Output is correct
20	Correct	31 ms	47224 KB	Output is correct
21	Correct	706 ms	105776 KB	Output is correct
22	Correct	710 ms	105848 KB	Output is correct
23	Correct	706 ms	105976 KB	Output is correct
24	Correct	711 ms	106008 KB	Output is correct
25	Correct	711 ms	105848 KB	Output is correct
26	Correct	723 ms	105976 KB	Output is correct
27	Correct	709 ms	105848 KB	Output is correct
28	Correct	430 ms	105924 KB	Output is correct
29	Correct	419 ms	105720 KB	Output is correct
30	Correct	32 ms	47224 KB	Output is correct
31	Correct	34 ms	47488 KB	Output is correct
32	Correct	33 ms	47352 KB	Output is correct
33	Correct	33 ms	47352 KB	Output is correct
34	Correct	33 ms	47360 KB	Output is correct
35	Correct	33 ms	47424 KB	Output is correct
36	Correct	33 ms	47352 KB	Output is correct
37	Correct	35 ms	47360 KB	Output is correct
38	Correct	35 ms	47360 KB	Output is correct
39	Correct	33 ms	47352 KB	Output is correct
40	Correct	32 ms	47224 KB	Output is correct
41	Correct	61 ms	49016 KB	Output is correct
42	Correct	58 ms	49016 KB	Output is correct
43	Correct	58 ms	49016 KB	Output is correct
44	Correct	60 ms	49016 KB	Output is correct
45	Correct	59 ms	49092 KB	Output is correct
46	Correct	59 ms	49016 KB	Output is correct
47	Correct	59 ms	49016 KB	Output is correct
48	Correct	59 ms	49144 KB	Output is correct
49	Correct	48 ms	48888 KB	Output is correct
50	Correct	33 ms	47232 KB	Output is correct
51	Correct	856 ms	105924 KB	Output is correct
52	Correct	907 ms	105940 KB	Output is correct
53	Correct	875 ms	105720 KB	Output is correct
54	Correct	877 ms	105784 KB	Output is correct
55	Correct	855 ms	105848 KB	Output is correct
56	Correct	870 ms	105848 KB	Output is correct
57	Correct	904 ms	105840 KB	Output is correct
58	Correct	483 ms	105976 KB	Output is correct
59	Correct	486 ms	105776 KB	Output is correct
60	Correct	34 ms	47352 KB	Output is correct
61	Correct	1143 ms	109000 KB	Output is correct
62	Correct	1139 ms	108920 KB	Output is correct
63	Correct	1129 ms	108892 KB	Output is correct
64	Correct	1129 ms	108884 KB	Output is correct
65	Correct	1154 ms	109028 KB	Output is correct
66	Correct	1228 ms	109108 KB	Output is correct
67	Correct	1142 ms	108792 KB	Output is correct
68	Correct	1133 ms	108968 KB	Output is correct
69	Correct	863 ms	107764 KB	Output is correct
70	Correct	33 ms	47352 KB	Output is correct

Submission #285594

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