data structure

[lipune]

what is the use of double link list in real time.

[satm2008]

As you know a linked list is like an array but created for run-time size and offers the flexibly to add and remove the nodes.

In the process, to traverse a list back and forth, doubly linked list is created.
For example, if you want to print the data/nodes in reverse order starting from bottom to top, in which case your "next" pointer would not be so helpful.
Simple, just to offer a flexibility of traversing back and forth.

Good luck :)