Write a recursive function that computes the length of a list. For example, (mylen ‘(1 2 3 4))should output 4.And (mylen '(blue green yellow brown red purple))should output 6.Now you will writeonePascalprogram. Pascal source code is saved in files whose names end in “.pp” like “myprogram.pp” or “cs4100lab.pp”. The “fpc” Pascal compiler can be used from the command line. So if you created a file called test.pp which contained:program first;beginwriteln(‘hello’);end.   and then you typed “fpc test.pp” at the command line, fpc would compile the code and store the results in a file called “test”. Typing “test” at the command line would then run the program.

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Declaring and Defining the function

A set of statements, which performs a particular task is called a function. The program gains modularity by using function. The application is quite easy to understand, read, and edit when they are created with functions. The developer/programmer creates a function and uses main() to call the function. Once the function gets executed, the control is transferred to the main program.