How do I troubleshoot circular linked lists in my code?

How do I troubleshoot circular linked lists in my code?

To troubleshoot circular linked lists, first check for infinite loops by using a slow and fast pointer approach.

What does the slow and fast pointer approach involve?

In this approach, you move one pointer (slow) one step at a time and the other pointer (fast) two steps at a time. If they meet, there's a cycle.

What if I find a cycle? How do I remove it?

To remove a cycle, first find the meeting point, then reset one pointer to the head and move both pointers one step at a time until they meet again.

Are there any common mistakes to avoid when working with circular linked lists?

Yes, common mistakes include not properly updating pointers when adding or removing nodes, which can lead to cycles.