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Kali_prasad

count no.of bst

May 18th, 2022
22
0
Never
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C++ 2.06 KB | None | 0 0
  1. #pragma GCC optimize ("O3")
  2. #pragma GCC target ("sse4")
  3.  
  4. #include <bits/stdc++.h>
  5. using namespace std;
  6.  
  7. typedef long long ll;
  8. typedef pair<int, int> pii;
  9. typedef pair<string,int> psi;
  10. typedef unordered_map<int,int> mii;
  11. typedef unordered_map<long long,long long> mll;
  12. typedef unordered_map<string,int> msi;
  13. typedef unordered_map<char,int> mci;
  14. typedef unordered_set<int> si;
  15. typedef unordered_set<long long> sll;
  16. typedef unordered_set<string> ss;
  17. typedef unordered_set<char> sc;
  18. typedef map<int,int> ormii;
  19. typedef map<long long,long long> ormll;
  20. typedef map<string,int> ormsi;
  21. typedef map<char,int> ormci;
  22. typedef set<int> orsi;
  23. typedef set<long long> orsll;
  24. typedef set<string> orss;
  25. typedef set<char> orsc;
  26. typedef vector<int> vi;
  27. typedef vector<string> vs;
  28. typedef vector<char> vc;
  29. typedef vector<ll> vll;
  30. typedef vector<vector<int>> vvi;
  31. typedef vector<vector<string>> vvs;
  32. typedef vector<vector<ll>> vvll;
  33.  
  34. #define FOR(i, a, b) for (auto i=a; i<=(b); i++)
  35. #define FORd(i,b,a) for (int i =b; i >= a; i--)
  36. #define sortinc(v)  sort(v.begin(),v.end())
  37. #define sortdec(v)  sort(v.rbegin(),v.rend())
  38. #define sz(x) (int)(x).size()
  39. #define mp make_pair
  40. #define pb push_back
  41. #define pob pop_back
  42. #define pf push_front
  43. #define pof pop_front
  44. #define fi first
  45. #define se second
  46. #define ins insert
  47.  
  48. const int MOD = 1000000007;
  49. //type functions here
  50.  
  51. int Bst(vi &v,int i,int Left,int Right)
  52. {
  53.     if(1>(i)||(i)>=sz(v)) return 0;
  54.     if(Left>v[i]||v[i]>Right) return Bst(v,2*i,Left,v[i]-1)+Bst(v,2*i+1,v[i]+1,Right);
  55.     return Bst(v,2*i,Left,v[i]-1)+Bst(v,2*i+1,v[i]+1,Right)+1;
  56. }
  57.  
  58. int main() {
  59.     ios_base::sync_with_stdio(false);
  60.     cin.tie(NULL);
  61.    
  62.     int tc=1;
  63.     cin>>tc;
  64.     FOR(w,1,tc)
  65.     {
  66.      
  67.         int n;
  68.         cin>>n;
  69.         vi v;
  70.         v.pb(-1);
  71.         while(n)
  72.         {
  73.             int temp;
  74.             cin>>temp;
  75.             v.pb(temp) ;          
  76.             n--;
  77.         }
  78.         cout<<Bst(v,1,INT_MIN,INT_MAX)<<endl;
  79.            
  80.        
  81.        
  82.        
  83.     }
  84.     return 0;
  85. }
  86.  
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