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  1. #include <vector>
  2. #include <array>
  3. #include <iostream>
  4.  
  5. int main()
  6. {
  7.     typedef std::array<int, 999> data;
  8.     std::vector<std::vector<data> > container;
  9.     for (int i=0; i<10; ++i) {
  10.       container.push_back({});
  11.       for (int j=0; j<=(1<<12); ++j)
  12.         container.back().push_back({});
  13.     }
  14.  
  15.     srand(0);
  16.     int sum = 0;
  17.     for (int n=0; n<(1<<18); ++n) {
  18.         auto& inner = container[((unsigned)rand())%container.size()];
  19.         auto& elem = inner[((unsigned)rand())%inner.size()];
  20.         sum += elem[((unsigned)rand())%elem.size()];
  21.     }
  22.     std::cout << sum << std::endl;
  23. }
Success #stdin #stdout 0.55s 2984KB
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https://ideone.com/XmEcfq
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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