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  1. #include<bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. typedef long long ll;
  6.  
  7. struct node
  8. {
  9.     int l,r,val;
  10.     node()
  11.     {
  12.         l=r=val=0;
  13.     }
  14. };
  15.  
  16. vector<node> v(1);
  17.  
  18. int build(int s,int e)
  19. {
  20.     int p=v.size();
  21.     v.push_back(node());
  22.     if(s==e)
  23.         return p;
  24.     int mid=(s+e)/2;
  25.     build(s,mid);
  26.     build(mid+1,e);
  27.     return p;
  28. }
  29.  
  30.  
  31. int main()
  32. {
  33.     const int n = 100000 ;
  34.     int r=build(1,n);
  35.     return 0;
  36. }
  37.  
Success #stdin #stdout 0s 3464KB
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https://ideone.com/alzUxP
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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