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  1. #include <algorithm>
  2. #include <functional>
  3. #include <iostream>
  4. #include <iterator>
  5. #include <list>
  6.  
  7. using namespace std;
  8.  
  9. void qsort(list<int>::iterator first, list<int>::iterator last)
  10. {
  11.     if (distance(first, last) < 2)
  12.         return;
  13.     int pivot = *first;
  14.  
  15.     list<int>::iterator it = partition(first, last, bind2nd(less<int>(), pivot));
  16.  
  17.     qsort(first, it);
  18.     qsort(it, last);
  19. }
  20.  
  21. int main()
  22. {
  23.     std::list<int> l;
  24.     l.push_back(5);
  25.     l.push_back(4);
  26.     l.push_back(1);
  27.     l.push_back(10);
  28.     l.push_back(3);
  29.     l.push_back(6);
  30.     l.push_back(7);
  31.  
  32.     cout << "List:";
  33.     copy(l.begin(), l.end(), std::ostream_iterator<int>(std::cout, " "));
  34.     cout << endl;
  35.  
  36.     qsort(l.begin(), l.end());
  37.  
  38.     cout << "Sorted list:";
  39.     copy(l.begin(), l.end(), std::ostream_iterator<int>(std::cout, " "));
  40.     cout << endl;
  41.     return 0;
  42. }
Success #stdin #stdout 0.01s 2856KB
comments (?)
stdin 
Standard input is empty
stdout 
List:5 4 1 10 3 6 7 
Sorted list:1 3 4 5 6 7 10
https://ideone.com/OOGXSp
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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