oj.uz

Submission #642806

# Submission time Handle Problem Language Result Execution time Memory
642806 2022-09-20T14:44:24 Z Codula Mountains (NOI20_mountains) C++17
100 / 100
 901 ms 88296 KB 
//IOI 2023 I am coming.
 
#include "bits/stdc++.h"
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
 
using namespace std;
using namespace __gnu_pbds;
 
#define fast ios_base::sync_with_stdio(false);cin.tie(nullptr)
#define int int64_t
#define pb push_back
#define deb(x) cerr<<"("<<#x<<"="<<x<<','<<__LINE__<<")"<<endl; 
#define ordered_set tree<pair<int,int>, null_type,less<pair<int,int>>, rb_tree_tag,tree_order_statistics_node_update>
 
int32_t main(){
	fast;
	int n;
	cin>>n;
	vector<int>a(n);
	for(int i=0;i<n;++i){
		cin>>a[i];
	}
	ordered_set o1,o2;
	//~ map<int,int>mp;
	vector<int>pref(3e5+1),pref2(3e5+1);
	map<int,int>mp,mp2;
	for(int i=0;i<n;++i){
		int dx=o1.order_of_key({a[i],i})-mp[a[i]];
		pref[i]=dx;
		o1.insert({a[i],i});
		mp[a[i]]+=1;
	}
	//~ map<int,int>mp2;
	for(int i=n-1;i>=0;--i){
		int dx=o2.order_of_key({a[i],-i})-mp2[a[i]];
		pref2[i]=dx;
		o2.insert({a[i],-i});
		mp2[a[i]]+=1;
	}
	int ans=0;
	for(int i=0;i<n;++i){
		//~ deb(pref[i]);
		//~ deb(pref2[i]);
		ans+=(pref[i]*pref2[i]);
	}
	cout<<ans<<"\n";
    return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 725 ms 88064 KB Output is correct
3 Correct 742 ms 88012 KB Output is correct
4 Correct 851 ms 88024 KB Output is correct
5 Correct 860 ms 88152 KB Output is correct
6 Correct 753 ms 88012 KB Output is correct
7 Correct 877 ms 87940 KB Output is correct
8 Correct 802 ms 88096 KB Output is correct
9 Correct 386 ms 69932 KB Output is correct
10 Correct 390 ms 70120 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 298 ms 45612 KB Output is correct
2 Correct 288 ms 45516 KB Output is correct
3 Correct 282 ms 45476 KB Output is correct
4 Correct 295 ms 45448 KB Output is correct
5 Correct 275 ms 45516 KB Output is correct
6 Correct 319 ms 45552 KB Output is correct
7 Correct 272 ms 45412 KB Output is correct
8 Correct 482 ms 45408 KB Output is correct
9 Correct 465 ms 45408 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 298 ms 45612 KB Output is correct
2 Correct 288 ms 45516 KB Output is correct
3 Correct 282 ms 45476 KB Output is correct
4 Correct 295 ms 45448 KB Output is correct
5 Correct 275 ms 45516 KB Output is correct
6 Correct 319 ms 45552 KB Output is correct
7 Correct 272 ms 45412 KB Output is correct
8 Correct 482 ms 45408 KB Output is correct
9 Correct 465 ms 45408 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 446 ms 45668 KB Output is correct
12 Correct 436 ms 45748 KB Output is correct
13 Correct 426 ms 45772 KB Output is correct
14 Correct 437 ms 45776 KB Output is correct
15 Correct 422 ms 45716 KB Output is correct
16 Correct 479 ms 45744 KB Output is correct
17 Correct 426 ms 45808 KB Output is correct
18 Correct 320 ms 45756 KB Output is correct
19 Correct 339 ms 45688 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5076 KB Output is correct
2 Correct 3 ms 5192 KB Output is correct
3 Correct 2 ms 5076 KB Output is correct
4 Correct 3 ms 5076 KB Output is correct
5 Correct 3 ms 5076 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5076 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 2 ms 5076 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5076 KB Output is correct
2 Correct 3 ms 5192 KB Output is correct
3 Correct 2 ms 5076 KB Output is correct
4 Correct 3 ms 5076 KB Output is correct
5 Correct 3 ms 5076 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5076 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 2 ms 5076 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 17 ms 7700 KB Output is correct
12 Correct 17 ms 7676 KB Output is correct
13 Correct 17 ms 7756 KB Output is correct
14 Correct 17 ms 7756 KB Output is correct
15 Correct 17 ms 7756 KB Output is correct
16 Correct 18 ms 7764 KB Output is correct
17 Correct 18 ms 7752 KB Output is correct
18 Correct 17 ms 7064 KB Output is correct
19 Correct 13 ms 6428 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 298 ms 45612 KB Output is correct
2 Correct 288 ms 45516 KB Output is correct
3 Correct 282 ms 45476 KB Output is correct
4 Correct 295 ms 45448 KB Output is correct
5 Correct 275 ms 45516 KB Output is correct
6 Correct 319 ms 45552 KB Output is correct
7 Correct 272 ms 45412 KB Output is correct
8 Correct 482 ms 45408 KB Output is correct
9 Correct 465 ms 45408 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 446 ms 45668 KB Output is correct
12 Correct 436 ms 45748 KB Output is correct
13 Correct 426 ms 45772 KB Output is correct
14 Correct 437 ms 45776 KB Output is correct
15 Correct 422 ms 45716 KB Output is correct
16 Correct 479 ms 45744 KB Output is correct
17 Correct 426 ms 45808 KB Output is correct
18 Correct 320 ms 45756 KB Output is correct
19 Correct 339 ms 45688 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 758 ms 58528 KB Output is correct
22 Correct 767 ms 58592 KB Output is correct
23 Correct 752 ms 58464 KB Output is correct
24 Correct 786 ms 58752 KB Output is correct
25 Correct 777 ms 58576 KB Output is correct
26 Correct 776 ms 58684 KB Output is correct
27 Correct 773 ms 58620 KB Output is correct
28 Correct 335 ms 58468 KB Output is correct
29 Correct 324 ms 58468 KB Output is correct
30 Correct 2 ms 4928 KB Output is correct

Subtask #7
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 725 ms 88064 KB Output is correct
3 Correct 742 ms 88012 KB Output is correct
4 Correct 851 ms 88024 KB Output is correct
5 Correct 860 ms 88152 KB Output is correct
6 Correct 753 ms 88012 KB Output is correct
7 Correct 877 ms 87940 KB Output is correct
8 Correct 802 ms 88096 KB Output is correct
9 Correct 386 ms 69932 KB Output is correct
10 Correct 390 ms 70120 KB Output is correct
11 Correct 298 ms 45612 KB Output is correct
12 Correct 288 ms 45516 KB Output is correct
13 Correct 282 ms 45476 KB Output is correct
14 Correct 295 ms 45448 KB Output is correct
15 Correct 275 ms 45516 KB Output is correct
16 Correct 319 ms 45552 KB Output is correct
17 Correct 272 ms 45412 KB Output is correct
18 Correct 482 ms 45408 KB Output is correct
19 Correct 465 ms 45408 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 446 ms 45668 KB Output is correct
22 Correct 436 ms 45748 KB Output is correct
23 Correct 426 ms 45772 KB Output is correct
24 Correct 437 ms 45776 KB Output is correct
25 Correct 422 ms 45716 KB Output is correct
26 Correct 479 ms 45744 KB Output is correct
27 Correct 426 ms 45808 KB Output is correct
28 Correct 320 ms 45756 KB Output is correct
29 Correct 339 ms 45688 KB Output is correct
30 Correct 2 ms 4948 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 3 ms 5192 KB Output is correct
33 Correct 2 ms 5076 KB Output is correct
34 Correct 3 ms 5076 KB Output is correct
35 Correct 3 ms 5076 KB Output is correct
36 Correct 3 ms 5076 KB Output is correct
37 Correct 3 ms 5076 KB Output is correct
38 Correct 3 ms 5076 KB Output is correct
39 Correct 2 ms 5076 KB Output is correct
40 Correct 2 ms 4948 KB Output is correct
41 Correct 17 ms 7700 KB Output is correct
42 Correct 17 ms 7676 KB Output is correct
43 Correct 17 ms 7756 KB Output is correct
44 Correct 17 ms 7756 KB Output is correct
45 Correct 17 ms 7756 KB Output is correct
46 Correct 18 ms 7764 KB Output is correct
47 Correct 18 ms 7752 KB Output is correct
48 Correct 17 ms 7064 KB Output is correct
49 Correct 13 ms 6428 KB Output is correct
50 Correct 2 ms 4948 KB Output is correct
51 Correct 758 ms 58528 KB Output is correct
52 Correct 767 ms 58592 KB Output is correct
53 Correct 752 ms 58464 KB Output is correct
54 Correct 786 ms 58752 KB Output is correct
55 Correct 777 ms 58576 KB Output is correct
56 Correct 776 ms 58684 KB Output is correct
57 Correct 773 ms 58620 KB Output is correct
58 Correct 335 ms 58468 KB Output is correct
59 Correct 324 ms 58468 KB Output is correct
60 Correct 2 ms 4928 KB Output is correct
61 Correct 835 ms 88296 KB Output is correct
62 Correct 828 ms 88036 KB Output is correct
63 Correct 835 ms 87996 KB Output is correct
64 Correct 840 ms 88092 KB Output is correct
65 Correct 866 ms 88012 KB Output is correct
66 Correct 845 ms 87952 KB Output is correct
67 Correct 856 ms 88024 KB Output is correct
68 Correct 901 ms 69956 KB Output is correct
69 Correct 783 ms 62988 KB Output is correct
70 Correct 2 ms 4948 KB Output is correct