n Exercise $3\mathrm{.}21,$ the child process must output the sequence of numbers

generated from the algorithm specified by the Collatz conjecture because

the parent and child have their own copies of the data. Another

approach to designing this program is to establish a shared$-$memory

object between the parent and child processes. This technique allows the

child to write the contents of the sequence to the shared$-$memory object.

The parent can then output the sequence when the child completes.

Because the memory is shared, any changes the child makes will be

reflected in the parent process as well.