You are to use the UNIX environment to write the C programs as follows:

1. Simulate the UNIX utility time that shows the time taken by a program. Your command-line syntax should be as follows: (mytime command). This program should invoke a program that gets the CPU time, forks a child to run command, and when the child returns get the CPU time again and prints the difference between the two times. You do not need to re-invent the concept of time. You can use a built-in Unix/Linux timer utility to keep the time.

Please give a unique working code. Thank you.