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  1. #include <iostream> 
  2. #include <vector>
  3.  
  4. using namespace std;
  5.  
  6. class X
  7. {
  8. public:
  9.     int x;
  10. };
  11.  
  12.  
  13. typedef std::vector<X> v1;
  14. typedef std::vector<v1> v2;
  15. typedef std::vector<v2> v3;
  16.  
  17.  
  18. void foo(X& x)
  19. {
  20.     x.x++;
  21. }
  22.  
  23. int main()
  24. {
  25.     v3 myVec(1024,v2(1,v1(1024,X())));
  26.     int constant=0;
  27.  
  28.     for(int cycle=0;cycle<1000;cycle++) // do it 10 times
  29.      {
  30.         for(int i=0;i<myVec.size();i++)
  31.         {
  32.            for(int j=0;j<myVec[i][constant].size();j++)
  33.            {
  34.                foo(myVec[i][constant][j]);
  35.            }
  36.  
  37.         }
  38.      }
  39.  
  40.     return 0;
  41. }
Success #stdin #stdout 2.35s 2808KB
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https://ideone.com/7cGW4
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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