Write an algorithm to count number of nodes in the circular linked list.
Ans.
Counting No of Nodes in Circular List
Let list be a circular header list in memory. This algorithm traverse and counts number of nodes in a LIST.
0. set COUNT: = 0
1. Set PTR: = LINK [START]. {Initializes the
pointer PTR}
2. Repeat steps 3, 4, 5 while PTR = START;
3. COUNT = COUNT + 1
4. Set PTR = LINK [PTR]. [PTR now points to next
node]
[End of step 2 loop]
5. Exit