How is a linked list organized in memory and how is it stored?

A linked list in memory is organized as a set of nodes (elements), each containing data and a reference (pointer) to the next node. In the case of a doubly linked list, each node stores references to both the next and the previous elements.

Storage is dynamic: nodes are allocated in the heap, and links between them ensure the sequence. This allows efficient insertion and deletion of elements without shifting the others.

Example in Dart (Flutter):

class Node<T> {
  T data;
  Node<T>? next;

  Node(this.data);
}

void main() {
  var first = Node<int>(1);
  var second = Node<int>(2);
  first.next = second;

  print(first.data); // 1
  print(first.next?.data); // 2
}