Write a C$/$C$++$ programming that does the following:

a$.$ Create a new process child$1$

b$.$ The parent $($of child$1)$ should print its id and wait for the termination of the child$1$

process

c$.$ The child$1$ process should call a function that subtracts two numbers passed as

arguments and print the result on the console screen along with the pid of the process

that is printing

d$.$ The child$1$ process should create a new child process $($child$2)$

e$.$ The child$2$ process should call a function that adds two numbers passed as

arguments and print the result along with its pid while child$1$ waits

f$.$ Control should then come back to the first child process child$1$ that now should call a

function that multiplies two numbers passed as arguments and print the result and pid

of the printing process to the console and then terminate

g$.$ The waiting parent process should now resume and terminate the program

h$.$ Note: arguments to functions may be hard coded or taken in as user input