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  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4. using namespace std;
  5.  
  6.  
  7. class Ship
  8. {
  9. public:
  10.     Ship(){}
  11.     Ship(string name, int distance)
  12.     {
  13.         mName = name;
  14.         mDistance = distance;
  15.     }
  16.     ~Ship(){}
  17.     friend ostream & operator << (ostream &out, const Ship &ship);
  18.     bool operator < (const Ship& str) const
  19.     {
  20.         return (mDistance < str.mDistance);
  21.     }
  22.     static bool ptrcmp(const Ship *a,const Ship *b)
  23.     {
  24.         return *a<*b;
  25.     }
  26. private:
  27.     string mName;
  28.     int mDistance;
  29. };
  30.  
  31. ostream & operator << (ostream &out, const Ship &ship) 
  32. {
  33.    return out << ship.mName << endl;
  34. }
  35.  
  36.  
  37. int main() {
  38. 	vector<Ship*> ships;
  39. 	ships.push_back(new Ship("some1", 20));
  40. 	ships.push_back(new Ship("some2", 10));
  41. 	ships.push_back(new Ship("some3", 5));
  42. 	ships.push_back(new Ship("some4", 40));
  43.  
  44. 	sort(ships.begin(), ships.end(), Ship::ptrcmp);
  45.  
  46. 	for (Ship *ship : ships)
  47. 	{
  48. 		cout << *ship;
  49. 		delete ship;
  50. 	}
  51.  
  52. 	return 0;
  53. }
Success #stdin #stdout 0s 3476KB
comments (?)
stdin
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Standard input is empty
stdout
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some3
some2
some1
some4
https://ideone.com/MVjmRz
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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