Sorted Lists and Their Implementations CS 302 - Data Structures Mehmet H Gunes Modified from authors’ slides

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

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

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

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

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 http://mediaplayer.pearsoncmg.com/_ph_cc_ecs960544_set.title.12a_The_ADT_Sorted_List__/aw/streaming/ecs_carrano_dapscpp_6/Ch12a_The_ADT_SortedList.m4v Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

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

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

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

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

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

Implementations That Use the ADT List Containment Public inheritance Private inheritance http://mediaplayer.pearsoncmg.com/_ph_cc_ecs960544_set.title.12b_ADT_Sorted_List_Implementations__/aw/streaming/ecs_carrano_dapscpp_6/Ch12b_ADT_SortedList_Implementations.m4v Data Structures and Problem Solving with C++: Walls and Mirrors, Carrano and Henry, © 2013

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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