10.2 Recursive Data Structures

Cards (77)

  • A recursive data structure is one that is defined in terms of itself
  • What enables recursive data structures to grow dynamically?
    Self-referential definition
  • Linked lists consist of nodes, each holding data and a reference to the next node
  • Match the feature with the correct data structure type:
    Self-referential definition ↔️ Recursive
    Fixed size ↔️ Non-recursive
  • Recursive data structures grow or shrink in size during runtime
  • Non-recursive data structures use self-referential definitions.
    False
  • In the example Java code, what is the purpose of the 'next' field in the Node class?
    Reference to the next node
  • Match the feature with the correct data structure:
    Sequential arrangement ↔️ Linked Lists
    Branched structure ↔️ Trees
  • Linked lists and trees are common examples of recursive data structures.

    True
  • What type of structure do trees have in terms of node relationships?
    Parent-child
  • The recursive method to print a linked list stops when the head is null.null
  • To insert a new node at the head of a linked list, you set the next pointer of the new node to the current head.
  • What does the self-reference property of recursive data structures allow?
    Dynamic size
  • Match the data structure with its type:
    Arrays ↔️ Non-recursive
    Linked Lists ↔️ Recursive
  • Steps of memory allocation in recursive data structures:
    1️⃣ Memory is allocated during recursion
    2️⃣ Each recursive call creates new memory
    3️⃣ Memory is freed when recursion ends
  • Trees have a linear structure.
    False
  • Recursive data structures use their own type in their definition.
    True
  • What is a key characteristic of recursive data structures regarding memory allocation?
    Memory allocation occurs during recursion
  • What type of structure do trees have in recursive data structures?
    Hierarchical
  • Linked lists have a sequential node arrangement, whereas trees have a hierarchical arrangement.hierarchical
  • In a linked list, each node holds data and a reference to the next node in the sequence.next
  • The recursive method is simpler to implement but less efficient than the iterative method.

    True
  • Match the operation on a linked list with its description:
    Insertion ↔️ Adding a new node
    Deletion ↔️ Removing a node
    Traversal ↔️ Visiting each node
  • A recursive data structure is defined in terms of itself, allowing for dynamic size.
  • Match the characteristic with the type of data structure:
    Self-referential ↔️ Recursive
    Fixed size ↔️ Non-recursive
  • Trees have a hierarchical structure with nodes branching to child nodes.

    True
  • Linked lists have a linear, sequential arrangement of nodes.

    True
  • What are two approaches to representing recursive data structures?
    Recursive and iterative
  • What is the best use case for the recursive method?
    Educational purposes
  • What type of implementation does the iterative method use?
    Loops
  • What are three common operations on recursive data structures?
    Insertion, deletion, traversal
  • In the Java example, where is the new node inserted in the 'insert' method?
    At the head
  • What is the complexity of inserting a new node at the beginning of a linked list?
    O(1)
  • What happens if the target data is not found in the linked list during deletion?
    The method returns
  • What is the best-case complexity of inserting a new node into a recursive data structure?
    O(1)
  • What is the complexity of traversing a linked list recursively?
    O(n)
  • Why might recursive data structures be less efficient in memory usage compared to non-recursive ones?
    Recursion overhead
  • Recursive data structures are defined in terms of themselves.

    True
  • Recursive data structures have a fixed size.
    False
  • What is the relationship between nodes in a tree structure?
    Parent-child relationship