Creation hierarchy without linked lists. Processes 0-4 are related as follows: 1 and 2 are children of 0, and 3 and 4 are children of 2. PCBs (Process Control Blocks) are implemented as an array indexed by the process number. Each PCB has the following links: parent (p), first child (c), younger sibling (ys), and older sibling (os).
a) Draw the PCB array. Include the values of the 4 links for all processes to reflect the parent-child hierarchy.
b) Modify the array to reflect the creation of a new child, 5, of process 0.