timer Asked: Oct 24th, 2013

Question description

The ECE Department offers three depth sequences:

Computer System Design: ECE-15, ECE-111, ECE-141, ECE-165

Communications Systems: ECE-153, ECE-155, ECE-158

Machine Learning and Controls: ECE-171, ECE-178

Within every depth sequence, the first course has no prerequisites, and each course is a prerequisite for the next. For example, ECE-153 has no prerequisites, but it is a prerequisite for ECE-155, which in turn is a prerequisite for ECE-158. There are no cross-depth prerequisites. Write a program prereq.c that prompts the user for a course name and prints the prerequisites needed to take it, and a happy message if no prerequisites are required, as shown below. Implement your program using switch-case and use fall-through.

(˜)$ a.out

Course: ECE-15

Prereqs: Anyone can take that!

(˜)$ a.out

Course: ECE-141

Prereqs: ECE-111 <-- ECE-15

(˜)$ a.out

Course: ECE-165

Prereqs: ECE-141 <-- ECE-111 <-- ECE-15

(˜)$ a.out

Course: ECE-155

Prereqs: ECE-153

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