Ever stumbled upon a weird problem and couldn’t quite figure out where things went wrong? I’ve been there, and so has a friend of mine while tackling a HackerRank challenge. The task seemed simple: take a mathematical expression as input and print out the result with three decimal places. However, getting there wasn’t as straightforward as expected. Let’s walk through what happened and how we can apply the lessons learned to similar problems. The Initial Problem The challenge required...
