How does the amount of memory occupied by an array depend on the number of elements inside it?

The memory size occupied by an array directly depends on the number of elements and the size of each element. In iOS (and generally in Swift/Objective-C), arrays can be:

• Fixed-size arrays (C arrays): occupy memory equal to the number of elements multiplied by the size of one element.
• Dynamic arrays (e.g., Swift Array): have additional overhead for memory management (pointers, capacity, count).

Example: if an array contains 100 elements of type Int32 (4 bytes), the memory is approximately 400 bytes plus a small overhead for the dynamic array.

Thus, increasing the number of elements linearly increases the occupied memory.