Question

Which of the following is not true about all circular linked lists

a) the precede reference of each node references the node that precedes it
b) every node references a successor
c) no node contains null in its next reference
d) the last node references the first node

Answer 1

All the statements about circular linked lists are true.

Step-by-step explanation:

In a circular linked list, all of the given options are true. Let's go through each option:

1. The precede reference of each node references the node that precedes it: In a circular linked list, each node has a reference to the node that comes before it, so this statement is true.
2. Every node references a successor: In a circular linked list, every node has a reference to the node that comes after it, so this statement is true.
3. No node contains null in its next reference: Circular linked lists do not have null references in their next field. Instead, the last node points back to the first node, creating a circular structure. So this statement is also true.
4. The last node references the first node: In a circular linked list, the last node indeed references the first node to close the circular structure. Therefore, this statement is true.

Therefore, none of the options given are not true about all circular linked lists. They are all true.