how to initialize a dynamic array in c++ code example

Example 1: declare dynamic array c++

int main()
{
  int size;

  std::cin >> size;

  int *array = new int[size];

  delete [] array;

  return 0;
}

Example 2: initialize dynamic array c++ to 0

int *arrayName = new int[10]{0}; 
//Print array elements
for(int i=0; i<10; i++ { cout<<arrayName[i] <<" "; }

Example 3: c++ delete dynamically allocated array

int length = 69;
int * numbers = new int[length];
delete[] numbers;

Example 4: c++ dynamic array

new T[size]