Ordered Lists and Sorted Lists

Chapter 7

Ordered Lists• Array version vs. Linked-list version

List, Ordered List and Sorted List Hierarchy

Searchable Container Operations• Insert: put objects into the container

• Withdraw: remove objects from the container

• Find: locate objects in the container

• IsMember: test whether a given object instance is in the container

Ordered Lists• Additional operations:• FindPosition: find the position of an object in the

ordered list• Operator [ ]: access the object at a given position in the

ordered list• Withdraw( Position&): remove the object at a given

position from the ordered list• InsertAfter: insert an object into the ordered list after

the object at a given position• InsertBefore: Insert an object before the object at a

given position

List and Ordered List Class Definition

Array Implementation

Constructor, Insert(), and [ ]

IsMember() and Find()

Withdraw()

Pos Class

FindPosition() and [ ]

Insert at Arbitrary Position

InsertAfter()

Withdraw an Item

Withdraw()

Linked List Implementation

Constructor, Insert() and [ ]

IsMember() and Find()

Withdraw()

Pos Class

FindPosition()

InsertAfter()

Withdraw()

Sorted Lists• Additional operations:

• FindPosition: find the position of an object in the sorted list

• Operator [ ]: access the object at a given position in the sorted list

• Withdraw: remove the object at a given position from the sorted list

SortedList Class Definition

Array Implementation

Inserting Items in a Sorted List

Insert()

Binary Search

Finding Items

Withdraw()

Linked List Implementation

Insert()