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Question: write a program that creates four processes using the wait...

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Write a program that creates four processes using the wait and fork function. The original process creates two children processes and then prints out “parent”. The children processes print “child1” and “child2”, respectively. The first child process creates a child process that prints out “grandchild”. write a program that creates four processes. The original process creates two children processes and then prints out “parent”. The children processes print “child1” and “child2”, respectively. The first child process creates a child process that prints out “grandchild”. The output must be guaranteed to print out in the following order.

grandchild

child1

child2

parent

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