pptx - Department of Computer Science
... – Persistent node = collection of nodes, each valid for an interval of versions, with extra updates, = max indegree – pointers must have subinterval of the node pointing to; otherwise copy and insert pointers (cacading copying) NB: Needs to keep track of back-pointers ...
... – Persistent node = collection of nodes, each valid for an interval of versions, with extra updates, = max indegree – pointers must have subinterval of the node pointing to; otherwise copy and insert pointers (cacading copying) NB: Needs to keep track of back-pointers ...
Chapter17
... Linked Lists vs. Arrays and Vectors • Linked lists can grow and shrink as needed, unlike arrays, which have a fixed size • Unlike vectors, insertion or removal of a node in the middle of the list is very efficient NULL ...
... Linked Lists vs. Arrays and Vectors • Linked lists can grow and shrink as needed, unlike arrays, which have a fixed size • Unlike vectors, insertion or removal of a node in the middle of the list is very efficient NULL ...
Chapter 24
... The array is dynamically created. If the capacity of the array is exceeded, create a new larger array and copy all the elements from the current array to the new array. Using linked list. The other approach is to use a linked structure. A linked structure consists of nodes. Each node is dynamically ...
... The array is dynamically created. If the capacity of the array is exceeded, create a new larger array and copy all the elements from the current array to the new array. Using linked list. The other approach is to use a linked structure. A linked structure consists of nodes. Each node is dynamically ...
Lecture 9
... value being denoted by the iterator. Depending upon the type of iterator and variety of underlying container, this value can also sometimes be used as the target of an assignment in order to change the value being held by the container. An iterator can be incremented, so that it refers to the next e ...
... value being denoted by the iterator. Depending upon the type of iterator and variety of underlying container, this value can also sometimes be used as the target of an assignment in order to change the value being held by the container. An iterator can be incremented, so that it refers to the next e ...
Searching: Binary Trees and Hash Tables
... If item is not found, we will run into an empty subtree View search() ...
... If item is not found, we will run into an empty subtree View search() ...
Lists, Stacks, and Queues
... pushing the entire array down one spot to make room e.g. delete at position 0 requires shifting all the elements in the list up one On average, half of the lists needs to be moved for either operation ...
... pushing the entire array down one spot to make room e.g. delete at position 0 requires shifting all the elements in the list up one On average, half of the lists needs to be moved for either operation ...
red-black tree
... Red-black trees are an isometry of 2-3-4 trees. In other words, for every 23-4 tree, there exists at least one red-black tree with data elements in the same order. The insertion and deletion operations on 2-3-4 trees are also equivalent to color-flipping and rotations in red-black trees. This makes ...
... Red-black trees are an isometry of 2-3-4 trees. In other words, for every 23-4 tree, there exists at least one red-black tree with data elements in the same order. The insertion and deletion operations on 2-3-4 trees are also equivalent to color-flipping and rotations in red-black trees. This makes ...
Linked list
In computer science, a linked list is a data structure consisting of a group of nodes which together represent a sequence. Under the simplest form, each node is composed of data and a reference (in other words, a link) to the next node in the sequence; more complex variants add additional links. This structure allows for efficient insertion or removal of elements from any position in the sequence.Linked lists are among the simplest and most common data structures. They can be used to implement several other common abstract data types, including lists (the abstract data type), stacks, queues, associative arrays, and S-expressions, though it is not uncommon to implement the other data structures directly without using a list as the basis of implementation.The principal benefit of a linked list over a conventional array is that the list elements can easily be inserted or removed without reallocation or reorganization of the entire structure because the data items need not be stored contiguously in memory or on disk, while an array has to be declared in the source code, before compiling and running the program. Linked lists allow insertion and removal of nodes at any point in the list, and can do so with a constant number of operations if the link previous to the link being added or removed is maintained during list traversal.On the other hand, simple linked lists by themselves do not allow random access to the data, or any form of efficient indexing. Thus, many basic operations — such as obtaining the last node of the list (assuming that the last node is not maintained as separate node reference in the list structure), or finding a node that contains a given datum, or locating the place where a new node should be inserted — may require sequential scanning of most or all of the list elements. The advantages and disadvantages of using linked lists are given below.