What are the key advantages of using pointers in programming?

Pointers in C/C++ offer several key advantages:

• Direct memory access: allows working with addresses, which is useful for optimization and low-level programming.
• Efficient management of dynamic memory: pointers can be used to allocate and free memory on the heap.
• Passing large structures and objects by reference: instead of copying data, the address is passed, saving resources.
• Implementation of complex data structures: such as lists, trees, graphs, where elements are linked by pointers.
• Interaction with system and hardware level: many APIs and drivers require working with pointers.

Example of passing an array to a function via a pointer:

void printArray(int* arr, int size) {
    for (int i = 0; i < size; i++) {
        printf("%d ", arr[i]);
    }
}

int main() {
    int data[] = {1, 2, 3, 4};
    printArray(data, 4);
    return 0;
}