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  1. #include <algorithm>
  2. #include <iostream>
  3. #include <numeric>
  4. #include <vector>
  5.  
  6. namespace std
  7. {
  8.  
  9. inline std::ostream& operator<<(
  10.     std::ostream& os, const std::vector<int>& v)
  11. {
  12.     os << '[';
  13.  
  14.     if (!v.empty())
  15.     {
  16.     	os << v.front();
  17.  
  18.     	std::for_each(std::next(v.cbegin()), v.cend(),
  19.     		[&os](const int i){ os << ", " << i; });
  20.     }
  21.  
  22.     os << ']';
  23.  
  24.     return os;
  25. }
  26.  
  27. }  // namespace std
  28.  
  29. int main()
  30. {
  31. 	std::vector<int> v(10);
  32. 	std::iota(v.begin(), v.end(), 1);
  33.  
  34. 	std::cout << v;
  35.  
  36. 	return 0;
  37. }
Success #stdin #stdout 0.01s 5308KB
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Standard input is empty
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
https://ideone.com/cGNmyh
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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