The head of a hard disk serves requests following the shortest seek time first (SSTF) policy.
What is the maximum cardinality of the request set, so that the head changes its direction after servicing every request if the total number of tracks are $2048$ and the head can start from any track?
correct answer C
@Arjun Sir, please read the 2nd comment.
Why we are not counting the first one ? I have considered $1366$ also as a request. Please explain.
video explanation .…………………
https://youtu.be/aEytXqw7_sI?t=688
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