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  1. #include <iostream>
  2. #include <numeric>
  3. #include <vector>
  4.  
  5. namespace std
  6. {
  7.  
  8. inline std::ostream& operator<<(
  9.     std::ostream& os, const std::vector<int>& scope)
  10. {
  11.     os << '[';
  12.  
  13.     auto iter = scope.cbegin();
  14.     const auto endIter = scope.cend();
  15.     if (iter != endIter)
  16.     {
  17.         os << *iter;               // print first element
  18.         while (++iter != endIter)  // and all other elements
  19.         {
  20.             os << ", ";
  21.             os << *iter;
  22.         }
  23.     }
  24.  
  25.     os << ']';
  26.  
  27.     return os;
  28. }
  29.  
  30. }  // namespace std
  31.  
  32. int main()
  33. {
  34. 	std::vector<int> v(10);
  35. 	std::iota(v.begin(), v.end(), 1);
  36.  
  37. 	std::cout << v;
  38.  
  39. 	return 0;
  40. }
Success #stdin #stdout 0.01s 5288KB
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
https://ideone.com/togUce
language:
C++14 (gcc 8.3)
created:
9 hours ago
visibility:
public

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