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  1. // Example program
  2. #include <iostream>
  3. #include <queue>
  4.  
  5. class Foo
  6. {
  7. public:
  8.     Foo(int _a, int _b) : a{_a}, b{_b} {}
  9.  
  10.     bool operator<(const Foo& other) const
  11.     {
  12.         return a < other.a || (a == other.a && b < other.b);
  13.     }
  14.  
  15.     int GetA() const { return a; }
  16.     int GetB() const { return b; }
  17. private:
  18.     int a;
  19.     int b;
  20. };
  21.  
  22. int main()
  23. {
  24.     std::priority_queue<Foo> x;
  25.     x.emplace(3,4);
  26.     x.emplace(4,1);
  27.     x.emplace(5,2);
  28.     x.emplace(2,7);
  29.  
  30.     while (!x.empty())
  31.     {
  32.     	Foo foo = x.top();
  33.         std::cout << "a: " << foo.GetA() << " b: " << foo.GetB() << std::endl;
  34.         x.pop();
  35.     }
  36. }
  37.  
Success #stdin #stdout 0s 3232KB
comments (?)
stdin
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Standard input is empty
stdout
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a: 5 b: 2
a: 4 b: 1
a: 3 b: 4
a: 2 b: 7
https://ideone.com/GrIWSs
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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