I love the logic that underlies algorithm. But nowadays I fear that this is almost disappeared, now programming a software is 5% logic and 95% read system specificactions, documentation, implement third part solutions, think about who developed the system thought it had to be and rant because you don't understand it. I like to solve math problems using algorithms rather than deal with user interactivity, for example. Yes, all this is pointless, but sometimes I miss the exercises that I did at school or in "IT Olympiad"