CS253: Software Development with C++

Spring 2021

Requirements

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CS253 Requirements

Homework Requirements

Example

Consider the requirements for a homework assignment:

Read two integers. If the first isn’t divisible by the second, print “Oops!”

You might reason:

All numbers are divisible by all other numbers, just not evenly (forgot about zero). So, I never have to print “Oops!”

Or, you might think:

The assignment doesn’t say what to do if it is divisible. I’ll print “Oops!” unconditionally!

That sort of reasoning might succeed in court—not here.

Use Your Head

Real World

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Real World