What are the advantages and disadvantages of using the List data structure?

Advantages of using List in C#:

• Dynamic size: List automatically expands when elements are added, unlike fixed-size arrays.
• Convenient methods: contains many built-in methods for adding, removing, searching, and sorting elements.
• Indexing: provides quick access to elements by index.

Disadvantages:

• Performance during frequent insertions/deletions in the middle of the list can be worse than linked lists, as elements are shifted.
• Expansion costs: when reaching the current capacity, List allocates a new larger array and copies data, which can cause temporary delays.

Example of usage:

var list = new List<int>();
list.Add(1);
list.Add(2);
int first = list[0]; // access by index
list.RemoveAt(0); // removal by index