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  1. #include <iostream>
  2.  
  3. class Item{
  4. private:
  5. 	int key;
  6. 	int data;
  7. public:
  8. 	Item(): data(0), key(0){}
  9. 	Item(int data, int key): data(data), key(key){}
  10. 	void print(){
  11. 		std::cout << "data: " << data << ", key " << key << std::endl;
  12. 	}
  13. 	bool operator <(const Item &item){ return key < item.key; }
  14. 	bool operator >(const Item &item){ return key > item.key; }
  15. };
  16.  
  17. template<class Item>
  18. class PQ{
  19. private:
  20. 	Item *pq;	/*Массив элементов*/
  21. 	int n;		/*Текущее оличество элементов в очереди*/
  22. public:
  23. 	PQ(int max){
  24. 		pq = new Item[max];
  25. 		n = 0;
  26. 	}
  27.  
  28. 	int empty() const{ return n == 0; }
  29.  
  30. 	void insert(Item item){
  31. 		int location = n - 1;
  32.  
  33. 		while(location >= 0 && pq[location] > item){
  34. 			pq[location + 1] = pq[location];
  35. 			location = location - 1;
  36. 		}
  37. 		pq[location + 1] = item;
  38. 		//pq[n++] = item;
  39. 	}
  40.  
  41. 	Item getmax(){
  42. 		int max = 0;
  43.  
  44. 		for(int i = 1; i < n; i++)
  45. 			if(pq[max] < pq[i])
  46. 				max = i;
  47. 		std::swap(pq[max], pq[n-1]);
  48. 		return pq[--n];
  49. 	}
  50.  
  51. 	Item getmin(){
  52. 		int min = 0;
  53.  
  54. 		for(int i = 1; i < n; i++)
  55. 			if(pq[min] > pq[i])
  56. 				min = i;
  57. 		std::swap(pq[min], pq[n-1]);
  58. 		return pq[--n];
  59. 	}
  60.  
  61. 	void show(){
  62. 		for(int i = 0; i < n; i++)
  63. 			pq[i].print();
  64. 	}
  65. };
  66.  
  67. int main(){
  68. 	int p;;
  69. 	PQ<Item> pq(50);
  70.  
  71. 	for(int i = 0; i < 10; i++)
  72. 		pq.insert(Item(7, i));
  73.  
  74. 	pq.show();
  75.  
  76. 	std::cout << "max: ";
  77. 	pq.getmax().print();
  78. 	std::cout << "max: ";
  79. 	pq.getmax().print();
  80. 	std::cout << "min: ";
  81. 	pq.getmin().print();
  82. 	std::cout << "min: ";
  83. 	pq.getmin().print();
  84.  
  85. 	std::cin >> p;
  86. 	return 0;
  87. }
Success #stdin #stdout 0s 3416KB
comments (?)
stdin
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Standard input is empty
stdout
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max: data: 7, key 9
max: data: 409, key 0
min: data: 0, key 0
min: data: 0, key 0
https://ideone.com/odn3tZ
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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