write two versions (pipe version and shared memory version) of an interprocess communication program in C or C++. Each version should create two processes using fork. One of them (the sender process) should send four intergers a,b,c,d (that are interpreted as the coordinates of two points A,B in the plane A(a,b) and B(c,d)) to the other (the receiver process). The sending process should print out the coordinates of the two points A(a,b) and B(c,d). The receiving process should print out the Manhattan distance between the two points A(a,b) and B(c,d).