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Questions and Answers
What happens when the new item is smaller than the smallest item in the list?
What happens when the new item is smaller than the smallest item in the list?
What is the purpose of the trailCurrent pointer in deleting a node?
What is the purpose of the trailCurrent pointer in deleting a node?
What happens when the list is initially empty and we try to delete a node?
What happens when the list is initially empty and we try to delete a node?
What is the purpose of the count variable in inserting an item in an ordered linked list?
What is the purpose of the count variable in inserting an item in an ordered linked list?
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Where is the new item inserted when it is larger than all the items in the list?
Where is the new item inserted when it is larger than all the items in the list?
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What happens when the item to be deleted is not in the list?
What happens when the item to be deleted is not in the list?
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What happens when the new item is to be inserted somewhere in the middle of the list?
What happens when the new item is to be inserted somewhere in the middle of the list?
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What is the purpose of the current pointer in deleting a node?
What is the purpose of the current pointer in deleting a node?
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What is the function used to insert an item at the head of an ordered linked list?
What is the function used to insert an item at the head of an ordered linked list?
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What is the function used to insert an item at the tail of an ordered linked list?
What is the function used to insert an item at the tail of an ordered linked list?
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Study Notes
Unordered Linked Lists
- Unordered linked lists are derived from the abstract class
linkedListType. - To search for a given item in an unordered linked list:
- Compare the search item with the current node in the list.
- If the item is found, return true; otherwise, return false.
- Repeat the comparison until the item is found or no more data is left in the list.
- To insert a node at the head of an unordered linked list:
- Create a new node and set it as the first node.
- To insert a node in the middle of an unordered linked list:
- Use two pointers,
pandq. - Compare the
infoof the new node with theinfoof the current node. - If the new node's
infois less than the current node'sinfo, insert the new node before the current node.
- Use two pointers,
- To insert a node at the tail of an unordered linked list:
- Create a new node and set it as the last node.
- To delete a node in an unordered linked list:
- Consider the following cases:
- Case 1: The list is empty.
- Case 2: The node to be deleted is the first node.
- Case 3: The node to be deleted is not the first node, but is somewhere in the list.
- Case 4: The node to be deleted is not in the list.
- Consider the following cases:
Ordered Linked Lists
- Ordered linked lists are derived from the abstract class
linkedListType. - To search for a given item in an ordered linked list:
- Compare the search item with the current node in the list.
- If the item is found, return true; otherwise, return false.
- Repeat the comparison until an item in the list that is greater than or equal to the search item is found, or no more data is left in the list.
- To insert a node in an ordered linked list:
- Use two pointers,
currentandtrailCurrent. - Consider the following cases:
- Case 1: The list is initially empty.
- Case 2: The new item is smaller than the smallest item in the list.
- Case 3: The item is to be inserted somewhere in the list.
- Use two pointers,
- To delete a node in an ordered linked list:
- Use two pointers,
currentandtrailCurrent. - Consider the following cases:
- Case 1: The list is initially empty.
- Case 2: The item to be deleted is contained in the first node of the list.
- Case 3: The item to be deleted is somewhere in the list.
- Case 4: The list is not empty, but the item to be deleted is not in the list.
- Use two pointers,
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Description
This quiz covers the concept of Unordered Linked Lists, including the UML class diagram of the unorderedLinkedList class and its inheritance hierarchy. It also tests your understanding of searching for a given item in an Unordered Linked List. Review your knowledge of data structures and algorithms with this quiz!
