Answer the following question :
Calculate the total head movements for the following queues using:
FCFS
SSTF
SCAN
C-SCAN
LOOK
C-LOOK
a. 76, 95, 73, 12, 150, 20, 4, 22, 47, 33, 100 (start = 50, end = 199)
b. 13, 17, 146, 23, 36, 120, 33, 77, 41, 97, 89 (start = 180, end = 199)