Solution

Given

• Queue: 45, 81, 185, 33, 175, 99, 150, 77
• Head starts at 58
• Policy: C-LOOK (Right) → move only to higher cylinder numbers; after the largest serviced request, wrap around to the smallest pending request (jump, no service during the jump), then continue to the right again.

Sort once by cylinder

Sorted list: 33, 45, 77, 81, 99, 150, 175, 185

Split relative to head (58):

• Right side (≥ 58): 77, 81, 99, 150, 175, 185

• Left side (< 58): 33, 45

C-LOOK (Right) service order

1. Serve the right side in ascending order:
   77 → 81 → 99 → 150 → 175 → 185

2. Wrap (circular jump) to the smallest pending request and continue ascending:
   33 → 45

So the overall service order is:
77, 81, 99, 150, 175, 185, 33, 45

👉 Therefore, the 2nd request processed is 🟩 81.