oj.uz

Submission #887042

# Submission time Handle Problem Language Result Execution time Memory
887042 2023-12-13T14:17:28 Z vjudge1 Mountains (NOI20_mountains) C++14
100 / 100
 352 ms 43600 KB 
#include<bits/stdc++.h>

using namespace std;

#define int long long

struct FenwickTree{
   int n;
   vector<int> t;
   void init(int _n){
      n=_n;
      t.assign(n+1, 0);
   }
   void update(int pos, int val){
      for (int i=pos; i<=n; i+=i&(-i)) t[i]+=val;
   }
   int get(int pos){
      int ans=0;
      for (int i=pos; i; i-=i&(-i)) ans+=t[i];
      return ans;
   }
   int get(int l, int r){
      return get(r)-get(l-1);
   }
} bit;

const int N=3e5+1;
int n, a[N];

int32_t main(){
   ios_base::sync_with_stdio(false);
   cin.tie(nullptr);
   cin >> n;
   map<int, vector<int>> mp;
   for (int i=1; i<=n; ++i) cin >> a[i], mp[a[i]].push_back(i);
   bit.init(n);
   int ans=0;
   for (auto &i:mp){
      for (int j:i.second){
         ans+=bit.get(j-1)*bit.get(j+1, n);
      }
      for (int j:i.second) bit.update(j, 1);
   }
   cout << ans;
   return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 118 ms 43504 KB Output is correct
3 Correct 123 ms 43428 KB Output is correct
4 Correct 119 ms 43344 KB Output is correct
5 Correct 120 ms 43516 KB Output is correct
6 Correct 120 ms 43340 KB Output is correct
7 Correct 120 ms 43348 KB Output is correct
8 Correct 120 ms 43348 KB Output is correct
9 Correct 93 ms 28236 KB Output is correct
10 Correct 90 ms 28288 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 8064 KB Output is correct
2 Correct 27 ms 8296 KB Output is correct
3 Correct 27 ms 8124 KB Output is correct
4 Correct 26 ms 8224 KB Output is correct
5 Correct 30 ms 8060 KB Output is correct
6 Correct 27 ms 8128 KB Output is correct
7 Correct 27 ms 8172 KB Output is correct
8 Correct 27 ms 8332 KB Output is correct
9 Correct 21 ms 8024 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 8064 KB Output is correct
2 Correct 27 ms 8296 KB Output is correct
3 Correct 27 ms 8124 KB Output is correct
4 Correct 26 ms 8224 KB Output is correct
5 Correct 30 ms 8060 KB Output is correct
6 Correct 27 ms 8128 KB Output is correct
7 Correct 27 ms 8172 KB Output is correct
8 Correct 27 ms 8332 KB Output is correct
9 Correct 21 ms 8024 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 37 ms 9424 KB Output is correct
12 Correct 37 ms 9164 KB Output is correct
13 Correct 37 ms 9304 KB Output is correct
14 Correct 37 ms 9552 KB Output is correct
15 Correct 38 ms 9344 KB Output is correct
16 Correct 37 ms 9308 KB Output is correct
17 Correct 40 ms 9560 KB Output is correct
18 Correct 24 ms 8692 KB Output is correct
19 Correct 25 ms 8796 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 5 ms 1880 KB Output is correct
12 Correct 5 ms 1884 KB Output is correct
13 Correct 5 ms 1884 KB Output is correct
14 Correct 5 ms 1884 KB Output is correct
15 Correct 5 ms 1812 KB Output is correct
16 Correct 5 ms 1880 KB Output is correct
17 Correct 5 ms 1880 KB Output is correct
18 Correct 5 ms 1184 KB Output is correct
19 Correct 2 ms 860 KB Output is correct
20 Correct 0 ms 408 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 8064 KB Output is correct
2 Correct 27 ms 8296 KB Output is correct
3 Correct 27 ms 8124 KB Output is correct
4 Correct 26 ms 8224 KB Output is correct
5 Correct 30 ms 8060 KB Output is correct
6 Correct 27 ms 8128 KB Output is correct
7 Correct 27 ms 8172 KB Output is correct
8 Correct 27 ms 8332 KB Output is correct
9 Correct 21 ms 8024 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 37 ms 9424 KB Output is correct
12 Correct 37 ms 9164 KB Output is correct
13 Correct 37 ms 9304 KB Output is correct
14 Correct 37 ms 9552 KB Output is correct
15 Correct 38 ms 9344 KB Output is correct
16 Correct 37 ms 9308 KB Output is correct
17 Correct 40 ms 9560 KB Output is correct
18 Correct 24 ms 8692 KB Output is correct
19 Correct 25 ms 8796 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 152 ms 19204 KB Output is correct
22 Correct 163 ms 19352 KB Output is correct
23 Correct 220 ms 19392 KB Output is correct
24 Correct 166 ms 19164 KB Output is correct
25 Correct 173 ms 19256 KB Output is correct
26 Correct 139 ms 19364 KB Output is correct
27 Correct 197 ms 19312 KB Output is correct
28 Correct 66 ms 18720 KB Output is correct
29 Correct 65 ms 18772 KB Output is correct
30 Correct 0 ms 344 KB Output is correct

Subtask #7
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 118 ms 43504 KB Output is correct
3 Correct 123 ms 43428 KB Output is correct
4 Correct 119 ms 43344 KB Output is correct
5 Correct 120 ms 43516 KB Output is correct
6 Correct 120 ms 43340 KB Output is correct
7 Correct 120 ms 43348 KB Output is correct
8 Correct 120 ms 43348 KB Output is correct
9 Correct 93 ms 28236 KB Output is correct
10 Correct 90 ms 28288 KB Output is correct
11 Correct 27 ms 8064 KB Output is correct
12 Correct 27 ms 8296 KB Output is correct
13 Correct 27 ms 8124 KB Output is correct
14 Correct 26 ms 8224 KB Output is correct
15 Correct 30 ms 8060 KB Output is correct
16 Correct 27 ms 8128 KB Output is correct
17 Correct 27 ms 8172 KB Output is correct
18 Correct 27 ms 8332 KB Output is correct
19 Correct 21 ms 8024 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 37 ms 9424 KB Output is correct
22 Correct 37 ms 9164 KB Output is correct
23 Correct 37 ms 9304 KB Output is correct
24 Correct 37 ms 9552 KB Output is correct
25 Correct 38 ms 9344 KB Output is correct
26 Correct 37 ms 9308 KB Output is correct
27 Correct 40 ms 9560 KB Output is correct
28 Correct 24 ms 8692 KB Output is correct
29 Correct 25 ms 8796 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 5 ms 1880 KB Output is correct
42 Correct 5 ms 1884 KB Output is correct
43 Correct 5 ms 1884 KB Output is correct
44 Correct 5 ms 1884 KB Output is correct
45 Correct 5 ms 1812 KB Output is correct
46 Correct 5 ms 1880 KB Output is correct
47 Correct 5 ms 1880 KB Output is correct
48 Correct 5 ms 1184 KB Output is correct
49 Correct 2 ms 860 KB Output is correct
50 Correct 0 ms 408 KB Output is correct
51 Correct 152 ms 19204 KB Output is correct
52 Correct 163 ms 19352 KB Output is correct
53 Correct 220 ms 19392 KB Output is correct
54 Correct 166 ms 19164 KB Output is correct
55 Correct 173 ms 19256 KB Output is correct
56 Correct 139 ms 19364 KB Output is correct
57 Correct 197 ms 19312 KB Output is correct
58 Correct 66 ms 18720 KB Output is correct
59 Correct 65 ms 18772 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 290 ms 43324 KB Output is correct
62 Correct 321 ms 43380 KB Output is correct
63 Correct 337 ms 43448 KB Output is correct
64 Correct 350 ms 43600 KB Output is correct
65 Correct 347 ms 43504 KB Output is correct
66 Correct 352 ms 43324 KB Output is correct
67 Correct 313 ms 43544 KB Output is correct
68 Correct 300 ms 28240 KB Output is correct
69 Correct 246 ms 22376 KB Output is correct
70 Correct 1 ms 348 KB Output is correct