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Delete all the even nodes of a Circular Linked List

Assume that given linked list are exist integer node value, and we are removing all nodes of this Circular linked list which are contains the values of Even key values.

Suppose we are inserted the following (12, 21, 30, 41, 53, 60, 79, 88) node in a sequence.

Before Remove even key nodes after Remove even key nodes

Before solve this problem consider following test cases.

1) When no element of linked list then display proper message like Empty linked list.

2) When only one element of linked list and this node value are even data. Then delete this node and set to head pointer of linked list is NULL.

3) When head node of linked list value is even data. So linked list last node is assigned to new upcoming head node. that means when deleting any of node there are always satisfied the properties of circular linked list.

4) When intermediate node are linked list is Even value node. In this case modified the link of previous nodes next pointer value to upcoming next node.

loop termination condition is important factor of this problem. Because linked list are circular so terminate condition is main factor. So terminate loop when next upcoming node are already iterates.

Here given code implementation process.


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