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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. 		Item key;
  32. 		int i = 0;
  33.  
  34. 		for(int j = 0; j < n; j++){
  35. 			key = item;
  36. 			i = j - 1;
  37. 			while(i >= 0 && pq[i] < key){
  38. 				pq[i+1] = pq[i];
  39. 				i = i - 1;
  40. 			}
  41. 			pq[i+1] = key;
  42. 		}
  43. 		//pq[n++] = item;
  44. 	}
  45.  
  46. 	Item getmax(){
  47. 		int max = 0;
  48.  
  49. 		for(int i = 1; i < n; i++)
  50. 			if(pq[max] < pq[i])
  51. 				max = i;
  52. 		std::swap(pq[max], pq[n-1]);
  53. 		return pq[--n];
  54. 	}
  55.  
  56. 	Item getmin(){
  57. 		int min = 0;
  58.  
  59. 		for(int i = 1; i < n; i++)
  60. 			if(pq[min] > pq[i])
  61. 				min = i;
  62. 		std::swap(pq[min], pq[n-1]);
  63. 		return pq[--n];
  64. 	}
  65.  
  66. 	void show(){
  67. 		for(int i = 0; i < n; i++)
  68. 			pq[i].print();
  69. 	}
  70. };
  71.  
  72. int main(){
  73. 	int p;;
  74. 	PQ<Item> pq(50);
  75.  
  76. 	for(int i = 0; i < 10; i++)
  77. 		pq.insert(Item(7, i));
  78.  
  79. 	pq.show();
  80.  
  81. 	std::cout << "max: ";
  82. 	pq.getmax().print();
  83. 	std::cout << "max: ";
  84. 	pq.getmax().print();
  85. 	std::cout << "min: ";
  86. 	pq.getmin().print();
  87. 	std::cout << "min: ";
  88. 	pq.getmin().print();
  89.  
  90. 	std::cin >> p;
  91. 	return 0;
  92. }
Success #stdin #stdout 0s 3464KB
comments (?)
stdin
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Standard input is empty
stdout
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max: data: 0, key 0
max: data: 409, key 0
min: data: 0, key 0
min: data: 0, key 0
https://ideone.com/T7t5sf
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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