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Sorry, I did not realize the site supported the tags, thanks for the heads up!

So, what elements should I be comparing there? I assumed answer was being taken from the previous input and 'a' was...

The following program takes user input into two arrays and should then determine how many items are different by comparing them with a loop. The comparison always show zero correct answers. Any idea...

Got it working, thanks!

while ((answer != 'A') || (answer != 'B') || (answer != 'C') || (answer != 'D'))

This section of code accepts no answer, instead of just A B C or D.

Any thoughts on how I should do this?
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