Programming Praxis

Today’s exercise is simple drill for beginning programmers; it was inspired by a student asking on a beginning programmer’s platform for someone to do his homework for him. The requested answer was in C++, and it was a few weeks ago, so I don’t feel too bad posting a Scheme solution:

Write a program that inputs each employee’s sales, then computes and prints the employee’s commission according to the formula $200 plus 10% of sales. Stop the input using a sentinel value. At the end of the input, display a one-dimensional array containing all the commission amounts, and the total amount of commission paid. You may not use a switch statement or multiple if statements.

Your task is to write a solution to the student’s homework; don’t use C++. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.

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