Consider the following code segment:

int pid = fork();

int c = 5;

if (pid == 0) /* child process */

{

fork()

;

c

+=

10;

}

else

{

c += 5;

}

Answer the following questions:

a)

How many different copies of the variable c are there? What are their values?

(Hint: every process has a

different

copy of variable c) (10

points)

b)

Draw the tree structure

of processes