How are different types of lists separated and classified by what signs?

In programming, lists are classified by several features:

1. Mutability:

   • Mutable lists (e.g., Python list) that can be changed after creation.
   • Immutable lists (e.g., Python tuple) that cannot be changed.

2. Storage structure:

   • Arrays — elements are stored in a contiguous memory area, quick access by index.
   • Linked lists — elements are connected by pointers, convenient for insertion/deletion, but slower for index access.

3. Type of elements:

   • Homogeneous lists — all elements are of the same type.
   • Heterogeneous lists — elements can be of different types.

4. Directionality:

   • Singly linked lists — each element points only to the next.
   • Doubly linked lists — elements point to both the next and previous.

5. Size staticity:

   • Static lists — fixed size.
   • Dynamic lists — size can change during execution.

In Python, most often, dynamic, mutable lists (list) are used, as well as tuples (tuple) for immutable sequences.