Random access is not possible in constant time; it must be done in linear time. This means insertions and extractions are amortized operations unless you currently hold a pointer or reference to the node to be extracted or the node preceding the insertion point, such as the tail node.
Which of the following data structures can be randomly accessed giving loc?A. linked list implemented using arrayB. singly linked listC. double linked listD. both single and double linked listThe answer is A.
The Josephus problem is a problem to locate the place for the last survivour. It shows the power of the circular linked list over the singly linked lists.
The implementation is the same as that for a singly-linked list, the only difference being that rather than maintaining separate pointers to both the head and tail, you only need to maintain a pointer to the tail, since the tail's next node is always the head, which will be itself if there is only one node. As with all queues, insertions occur at the tail and extractions occur at the head.
The following are operations performed by queue in data structuresEnqueue (Add operation)Dequeue (Remove operation)Initialize
Advantages of single linked list: # Decrease in storage space per linked list node # Simpler implementation Advantages of double linked list # Decrease in work when accessing a random node # Decrease in work when inserting or deleting a node
Add another pointer to the nodes for the previous node: struct node { struct node *next; struct node *previous; void *data; }; typedef struct node node; Then change the logic for insertion and removal to make sure you set the previous pointer as well as the next one.
Which of the following data structures can be randomly accessed giving loc?A. linked list implemented using arrayB. singly linked listC. double linked listD. both single and double linked listThe answer is A.
Evaluating a Polynomial expression using a singly linked list visit : http://myfundatimemachine.blogspot.in/2012/06/polynomial-evaluation-in-c.html
The Josephus problem is a problem to locate the place for the last survivour. It shows the power of the circular linked list over the singly linked lists.
The implementation is the same as that for a singly-linked list, the only difference being that rather than maintaining separate pointers to both the head and tail, you only need to maintain a pointer to the tail, since the tail's next node is always the head, which will be itself if there is only one node. As with all queues, insertions occur at the tail and extractions occur at the head.
A singly linked list is a linked list which only provides links in "one direction". Using a metaphor, a singly linked list is a one way street, while a doubly linked list is a two way street. Once you move forward in a singly linked list, there is no way to go backwards unless you kept your reference/pointer from before. A singly linked list would look like this: start ----> node1---->node2---->node3 ----> NULL You will see that node2 only has a link forward to node3 - it does not have a link backwards to node1, even though node1 has a link forwards to node2. To prevent us from permanently losing access to portions of the linked list, we generally keep a reference/pointer to "start". A doubly linked list would have twice the number of pointers/references as a singly linked list - making it very inefficient to store small datatypes. On the other hand, it would be possible to move both forwards and backwards with a doubly linked list because you have links pointing both forwards and backwards.
The following are operations performed by queue in data structuresEnqueue (Add operation)Dequeue (Remove operation)Initialize
Queues are commonly implemented for abstract routines and data access structures. In languages using object-orientation, they may be featured as classes. Some methods for implementation include circular buffers and linked tests.
It's not that one is better than the other. They are used in different circumstances. A linear linked list is used like an array, with the added benefits of random insertion/removal of elements, etc. A circular linked list is often used as a buffer where one portion of the program produces data and another consumes it, such as in communications.
Advantages of single linked list: # Decrease in storage space per linked list node # Simpler implementation Advantages of double linked list # Decrease in work when accessing a random node # Decrease in work when inserting or deleting a node
The singly link list is nothing but the group of memory location in the computer memory (RAM) connected with each other using the pointer. The pointer is nothing but the location in the memory address space . The single data in list is called as nodes. Every nodes contain data and the pointer to the next data. Means one pointer in the node gives location of the next data. Suppose i have following data Memory location Data 1000 A 2000 B 3000 C since the my data A,B,C is stored in different memory locations , i can group it using singly linklist . Means my first node contain data A ,second B, & third C . The first node which contain data A will give the information about the next data or node (which is B) using the pointer. Means the pointer of A store the memory location of B (which is 2000).Like these the link will continued , at last node since there is no next node or data . Hence the pointer contain NULL value means there is (dead end).When computer encounters NULL it stop travelling through the list. & there is a special pointer called START pointer which gives the mem location of first node. In about example the node which contain data C contain NULL value in pointer field.
design and implementation of a buffer circuit using operational amplifier