Stack is an abstract data type that allows you to input and output data in a way that the first data which was placed in the stack will be the last one to get out. We use physical examples of stack in our daily lives such as the stack of dishes or stack of coins where you only add or remove objects from the top of the stack.
You can see the whole source code implementing the stack in related links, below.
I'm sorry brother
Yes, each node in a doubly linked list contain a link to the previous as well as the next node. That is the definition of the doubly linked list.
You copy a singly linked list into a doubly linked list by iterating over the singly linked list and, for each element, calling the doubly linked list insert function.
Add weights to the elements of the queue and use an algorithm to sort the queue every time an element is added.
zsd
The time complexity of operations in a doubly linked list is O(1) for insertion and deletion at the beginning or end of the list, and O(n) for insertion and deletion in the middle of the list.
I'm sorry brother
You'll need to use a doubly-linked circular list, since otherwise when you pop off the tail element you'll need to whizz all the way round the list to find its predecessor. See the links section for an implementation of a doubly-linked circular list.
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.
Yes, each node in a doubly linked list contain a link to the previous as well as the next node. That is the definition of the doubly linked list.
You copy a singly linked list into a doubly linked list by iterating over the singly linked list and, for each element, calling the doubly linked list insert function.
singly linked list stores only the address of next node while doubly linked list stores the address of previous node and next node and hence it is called doubly linked list. In singly linked list only forward traversing is possible while in doubly linked list forward and backward traversal is possible.
if (this->next) this->next->prev= this->prev; else list->last= this->prev; if (this->prev) this->prev->next= this->next; else list->first= this->next; free (this);
Add weights to the elements of the queue and use an algorithm to sort the queue every time an element is added.
sorry
To convert a binary tree into a doubly linked list, perform an in-order traversal of the tree and adjust the pointers to create the doubly linked list. This involves setting the left child pointer to the previous node and the right child pointer to the next node in the list.
To efficiently sort a doubly linked list, you can use a sorting algorithm such as merge sort or quicksort. These algorithms can be implemented to work with doubly linked lists by considering the pointers in both directions. By recursively dividing the list and merging or partitioning the elements, you can achieve an efficient sorting process.