when ever u encounter a fork it divide the current process in 2 part,one continue for the parent process and another branch as another child process.
In above example:-
the total no of process are 4
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If P(n) is the number of processes created by a n-fork program, then we have that
- Anonymous February 23, 2013P(n) = 2 * P(n-1).
(first fork creates two copies of the n-1 fork program)
P(1) = 2.
P(2) = 2 * P(1) = 4.
So P(3) = 3 * P(2) = 8
In general, P(n) = 2^n