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  1. #include <iostream>
  2. #include <string>
  3. #include <stdlib.h>
  4.  
  5. using namespace std;
  6. template <typename T>
  7. class BasicVector
  8. {
  9. private:
  10. 	int vector_size;
  11. 	int vector_capacity;
  12. 	T* data;
  13.  
  14. 	void resize();
  15.  
  16. public:
  17. 	BasicVector(size_t capacity = 0);
  18. 	~BasicVector();
  19.  
  20. 	void push_back(T);
  21. 	void insert(int, T);
  22. };
  23.  
  24.  
  25. template <typename T>
  26. void BasicVector<T>::resize()
  27. {
  28. 	T* temp = data;
  29. 	T* newDataCap = new T[vector_capacity * 2];
  30. 	this->data = newDataCap;
  31. 	for (int i = 0; i < vector_size; i++)
  32. 	{
  33. 		data[i] = temp[i];
  34. 	}
  35. 	vector_capacity *= 2;
  36. 	delete[] temp;
  37. }
  38.  
  39. template <typename T>
  40. BasicVector<T>::BasicVector(size_t capacity)
  41. {
  42. 	if (capacity < 16)
  43. 	{
  44. 		capacity = 16;
  45. 	}
  46. 	else if (capacity >= 16 && capacity % 2 == 1)
  47. 	{
  48. 		capacity = capacity + 1;
  49. 	}
  50. 	vector_capacity = capacity;
  51. 	data = new T[vector_capacity];
  52. 	vector_size = 0;
  53. }
  54.  
  55. template <typename T>
  56. BasicVector<T>::~BasicVector()
  57. {
  58. 	delete[] data;
  59. }
  60.  
  61. template <typename T>
  62. void BasicVector<T>::push_back(T element)
  63. {
  64. 	if (vector_size == vector_capacity)
  65. 	{
  66. 		resize();
  67. 	}
  68. 	data[vector_size] = element;
  69. 	vector_size++;
  70. }
  71.  
  72. template <typename T>
  73. void BasicVector<T>::insert(int  elemNum, T element)
  74. {
  75. 	if (vector_size == vector_capacity)
  76. 	{
  77. 		resize();
  78. 	}
  79. 	T* temp = new T[vector_size];
  80.  
  81. 	for (int i = 0; i < vector_size; i++)
  82. 	{
  83. 		temp[i] = data[elemNum + i - 1];
  84. 	}
  85.  
  86. 	for (int j = 0; j < vector_size; j++)
  87. 	{
  88. 		data[elemNum + j] = temp[j];
  89. 	}
  90.  
  91. 	data[elemNum - 1] = element;
  92.  
  93. 	vector_size++;
  94.  
  95. 	delete[] temp;
  96. }
  97.  
  98. template <typename T>
  99. void theWorkingFunction(BasicVector<T> &vector)
  100. {
  101. 	{
  102. 		int elemNum;
  103. 		T element;
  104. 		cin >> elemNum >> element;
  105. 		vector.insert(elemNum, element);
  106. 	}
  107. 	{
  108. 		T element;
  109. 		cin >> element;
  110. 		vector.push_back(element);
  111. 	}
  112. }
  113.  
  114. int main()
  115. {
  116. 	BasicVector<string> vector;
  117. 	theWorkingFunction(vector);
  118. 	return 0;
  119. }
Runtime error #stdin #stdout 0s 4508KB
comments (?)
stdin 
0 foo foo
stdout 
Standard output is empty
https://ideone.com/x86gGM
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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