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  1. #include <iostream>
  2. #include <vector>
  3. #include <set>
  4.  
  5. using namespace std;
  6.  
  7. template <typename Container>
  8. std::ostream& Print(ostream& out, const Container& container);
  9.  
  10.  
  11. template <typename Element>
  12. ostream& operator<<(ostream& out, const set<Element>& container) {
  13.     out << "{";
  14.     Print(out, container);
  15.     out << "}";
  16.     return out;
  17. }
  18.  
  19. template <typename Element>
  20. ostream& operator<<(ostream& out, const vector<Element>& container) {
  21.     out << "[";
  22.     Print(out, container);
  23.     out << "]";
  24.     return out;
  25. }
  26.  
  27. template <typename Container>
  28. std::ostream& Print(ostream& out, const Container& container) {
  29.     bool isnt_first = false;
  30.     for (const auto& element : container) {
  31.         if (isnt_first) {
  32.             out << ", ";
  33.         }
  34.         else {
  35.             isnt_first = true;
  36.         }
  37.         out << element;
  38.     }
  39.     return out;
  40. }
  41.  
  42.  
  43. int main() {
  44.  
  45.     //setlocale(LC_ALL, "ru");
  46.  
  47.     const set<string> cats = { "Мурка"s, "Белка"s, "Георгий"s, "Рюрик"s };
  48.     cout << cats << endl;
  49.  
  50.     const vector<int> ages = { 10, 5, 2, 12 };
  51.     cout << ages << endl;
  52.  
  53.     const vector<vector<string>> a = {
  54.         { "Мурка"s, "Белка"s, "Георгий"s, "Рюрик"s },
  55.         { "Мурка"s, "Белка"s, "Георгий"s, "Рюрик"s },
  56.         { "Мурка"s, "Белка"s, "Георгий"s, "Рюрик"s }
  57.     };
  58.     cout << a << endl;
  59. }
  60.  
Success #stdin #stdout 0.01s 5520KB
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stdin
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Standard input is empty
stdout
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{Белка, Георгий, Мурка, Рюрик}
[10, 5, 2, 12]
[[Мурка, Белка, Георгий, Рюрик], [Мурка, Белка, Георгий, Рюрик], [Мурка, Белка, Георгий, Рюрик]]
https://ideone.com/CdH2FE
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
secret

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