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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class myVector
  5. {
  6.     int* vector_;
  7.     int size_;
  8. public:
  9.     myVector() : size_(0), vector_(nullptr)
  10.     {}
  11.  
  12.     ~myVector() {
  13.     	delete vector_;
  14.     }
  15.  
  16.     int size() const {
  17.     	return size_;
  18.     }
  19.  
  20.     int operator[](int i) const {
  21.     	return vector_[i];
  22.     }
  23.  
  24.     void pushBack(int data)
  25.     {
  26.         int* tmp = new int[size_ + 1];
  27.         for (int i = 0; i < size_; i++)
  28.             tmp[i] = vector_[i];
  29.         tmp[size_] = data;
  30.         delete vector_;
  31.         vector_ = tmp;
  32.         ++size_;
  33.     }
  34. };
  35.  
  36. int main() {
  37. 	myVector vec;
  38. 	vec.pushBack(10);
  39. 	vec.pushBack(2);
  40. 	vec.pushBack(7);
  41.  
  42. 	for(int i = 0; i < vec.size(); ++i)
  43. 		cout << vec[i] << endl;
  44.  
  45. 	return 0;
  46. }
Success #stdin #stdout 0s 3412KB
comments (?)
stdin 
Standard input is empty
stdout 
10
2
7
https://ideone.com/E8006x
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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