• Implementation Of Stack And Queue Using Linked List In Data Structure

The major problem with the stack implemented using an array is, it works only for a fixed number of data values. That means the amount of data must be specified at the beginning of the implementation itself. Stack implemented using an array is not suitable, when we don't know the size of data which we are going to use.

A stack data structure can be implemented by using a linked list data structure. The stack implemented using linked list can work for an unlimited number of values. That means, stack implemented using linked list works for the variable size of data. So, there is no need to fix the size at the beginning of the implementation. The Stack implemented using linked list can organize as many data values as we want.In linked list implementation of a stack, every new element is inserted as ' top' element. That means every newly inserted element is pointed by ' top'. Whenever we want to remove an element from the stack, simply remove the node which is pointed by ' top' by moving ' top' to its previous node in the list.

The next field of the first element must be always NULL. ExampleIn the above example, the last inserted node is 99 and the first inserted node is 25.

Implementation Of Stack And Queue Using Linked List In Data Structure

The order of elements inserted is 25, 32,50 and 99. Stack Operations using Linked ListTo implement a stack using a linked list, we need to set the following things before implementing actual operations. Step 1 - Include all the header files which are used in the program.

The major problem with the queue implemented using an array is, It will work for an only fixed number of data values. That means, the amount of data must be specified at the beginning itself. Queue using an array is not suitable when we don't know the size of data which we are going to use. A queue data structure can be implemented using a linked list data structure. The queue which is implemented using a linked list can work for an unlimited number of values.

That means, queue using linked list can work for the variable size of data (No need to fix the size at the beginning of the implementation). The Queue implemented using linked list can organize as many data values as we want.In linked list implementation of a queue, the last inserted node is always pointed by ' rear' and the first node is always pointed by ' front'. ExampleIn above example, the last inserted node is 50 and it is pointed by ' rear' and the first inserted node is 10 and it is pointed by ' front'. The order of elements inserted is 10, 15, 22 and 50. OperationsTo implement queue using linked list, we need to set the following things before implementing actual operations. Step 1 - Include all the header files which are used in the program.