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  1. #include <iostream>
  2. #include <cstdlib>
  3.  
  4. class Array
  5. {
  6. private:
  7.  
  8. 	int *data;
  9. 	int size;
  10.  
  11. public:
  12.  
  13. 	Array(int start_size = 0)
  14. 	{
  15. 		data = new int[start_size];
  16. 		size = start_size;
  17. 	}
  18.  
  19. 	void add_element(int element)
  20. 	{
  21. 		size += 1;
  22. 		data = (int *)realloc(data, sizeof(int) * size);
  23. 		data[size - 1] = element;
  24. 	}
  25.  
  26. 	int get_element(int index)
  27. 	{
  28. 		if (index <= size - 1 && index >= 0)
  29. 		{
  30. 			return data[index];
  31. 		}
  32. 		else
  33. 		{
  34.  
  35. 		}
  36. 	}
  37. };
  38.  
  39. int main()
  40. {
  41. 	Array arr(0);
  42. 	arr.add_element(4);
  43. 	std::cout << arr.get_element(1) << std::endl;
  44. }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/L9rtWt
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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