I wanted to build a secure calculator to keep prying eyes from seeing the results of the calculations. What I came up with should easily surpass Dept. of Defense standards for data security.

Features include:
STL maps for optimization
STL strings and stringstreams!
O(n) in-place string reversal!!
Pointer arithmetic!!!
Test-driven development (Red-Green-Repeat)!!!!
Palindrome checker?(!^5)
Reckless conversion between STL strings and char arrays(!factorial)
Overuse of exclamation points!!!!!!!!!!!!!!!!!!!!!!!

Also, in true hacker fashion, I have add

Alex Papadimoulis:

Also, in true hacker fashion, I have add

...what, exactly?

Alex, you should look more carefully at those entry descriptions, as there are lots of them that got truncated.