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  1. #include <iostream>
  2. #include <iomanip>
  3. #include <queue>
  4.  
  5. using namespace std;
  6.  
  7.  
  8. void foo(queue<int>*s = nullptr)
  9. {
  10.     if (s == nullptr) s = new queue<int>;
  11.     int n;
  12.     cin >> n;
  13.     if (n == 0) return;
  14.     s->push(n);
  15.     foo(s);
  16.     cout << s->front() << " ";
  17.     s->pop();
  18.     if (s->empty()) delete s;
  19. };
  20.  
  21.  
  22. int main()
  23. {
  24.     foo();
  25.     cout << endl;
  26. }
  27.  
  28.  
Success #stdin #stdout 0s 4480KB
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https://ideone.com/XRp4qT
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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