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3. Linked Lists
Circular linked lists
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Reading 1
No nullptr at the end
In a circular singly linked list, the last node’s next points to head. Traversal must stop after returning to the start, not at nullptr.
Useful for round-robin scheduling and ring buffers.
Be careful with empty and one-node circles.
// stop condition sketch
Node* p = head;
do {
// use p
p = p->next;
} while (p != head);Check 2
End test
In a non-empty circular list, traversal usually stops when
Fill in 3
Shape
Try it 4
One-node circle
Self loop.
main.cpp
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Assignment 5
Print yes if circular concept
Read n. If n>0 print circular, else print empty.
main.cpp
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