How do you initialize an array in C?

When initializing an array in C, using curly braces to specify the values is the correct method. This allows you to define the elements of the array at the time of declaration. For example, when you write int arr[] = {1, 2, 3};, this not only creates the array arr but also initializes it with three integer values: 1, 2, and 3. The compiler can also automatically determine the size of the array based on the number of elements provided within the curly braces.

This approach allows for clear and concise definition, ensuring that the array is both declared and populated with initial values right from the start. Initializing an array like this is common practice in C programming as it provides a simple and effective way to create and set values in one step.

Other methods such as declaring an array size only or using the malloc function for dynamic memory allocation serve different purposes and are not suitable for direct initialization with specific values at the point of declaration.