How to Create and Manage Dynamic Arrays in C Using the `new` Keyword?

Dynamic Array Manipulation in C : Using the 'new' Keyword

Creating dynamic arrays allows you to allocate memory on the heap during runtime, providing flexibility in data storage. In C , the 'new' keyword is utilized to achieve this.

Creating a Dynamic Array of Integers

To create a dynamic array of integers using 'new,' follow these steps:

int main() {
  int size;

  std::cin >> size;

  int *array = new int[size];

The above code snippet defines an integer pointer named 'array' and allocates memory dynamically to store 'size' number of integers.

Memory Management

It's imperative to remember that dynamic memory allocation requires proper management to avoid memory leaks. Once the dynamic array is no longer required, it must be deleted using the 'delete[]' operator:

delete[] array;

This action deallocates the memory associated with the dynamic array, freeing it up for other purposes.

Example Usage

Consider the following example:

int main() {
  int size;

  std::cin >> size;

  int *array = new int[size];
  // ... Code to manipulate the dynamic array ...

  // Memory cleanup
  delete[] array;

  return 0;
}

In this example, we take user input for the desired size of the array, allocate memory accordingly, perform operations on the dynamic array, and finally release the allocated memory.

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