1. Sorted Lists and Their Implementations
CS Data Structures
Mehmet H Gunes
Modified from authors’ slides

2. Contents Specifying the ADT Sorted List Link-Based Implementation
Implementations That Use the ADT List
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

3. Specifying the ADT Sorted List
The ADT sorted list maintains its entries in sorted order.
It is a container of items that determines and maintains order of entries by their values.
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

4. Specifying the ADT Sorted List
Test whether sorted list is empty.
Get number of entries in sorted list.
Insert entry into a sorted list.
Remove given entry sorted list.
Remove entry at given position.
Remove all entries.
Look at (get) th entry at a given position
Get position of a given entry.
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

5. Specifying the ADT Sorted List
UML diagram for the ADT sorted list
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

6. Specifying the ADT Sorted List
View C++ interface in Listing 12-1
Formalizes initial specifications of ADT sorted list
ADT sorted list can add, remove, or locate entry, given entry as argument
Sorted list will not allow add or replacement of entry by position
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

7. A Link-Based Implementation
View header file for linkSortedList, Listing 12-2
Begin Implementation: Copy Constructor
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

8. A Link-Based Implementation
Method copyChain
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

9. A Link-Based Implementation
Places to insert strings into a sorted chain of linked nodes
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

10. A Link-Based Implementation
Method insertSorted
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

11. A Link-Based Implementation
Private method getNodeBefore
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

12. Implementations That Use the ADT List
Containment
Public inheritance
Private inheritance
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

13. Containment
An instance of a sorted list that contains a list of its entries
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

14. Containment View header file source code, Listing 12-3
SortedListHasA is composed of an instance of the class LinkedList
View header file source code, Listing 12-3
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

15. Containment Constructors
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

16. Containment Destructor Method insertSorted
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

17. Containment
Methods isEmpty , getLength , remove, clear , and getEntry of ADT sorted list has same specifications as in ADT list
Example, method remove
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

18. Efficiency Issues
The worst-case efficiencies of ADT list operations for array-based and linkbased implementations
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

19. Efficiency Issues
The worst-case efficiencies of the ADT sorted list operations when implemented using an instance of the ADT list
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

20. Public Inheritance SortedListIsA as a descendant of LinkedList
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

21. Public Inheritance View header file, Listing 12-4
Implementation – constructors, destructor
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

22. Public Inheritance Method insertedSorted
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

23. Public Inheritance Method removeSorted
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

24. Public Inheritance Method getPosition
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

25. Public Inheritance Overridden method insert
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

26. Private Inheritance View header file for SortedListAsA, Listing 12-5
Implementation
Method getEntry
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

27. Private Inheritance
The SortedListAsA class implemented in terms of the LinkedList class
Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013