• A question and a suggestion

 

Hi, I haven't been on the site for a while and I quite a few new tasks. First of all I wonder how should I, or anybody else on the improvement teem keep track of what problems have already been used. Right now I can click through stuff, but what when the number of tasks grows?

And a suggestion for a task. How about Towers of Hanoi? It's a pretty simple and interesting problem.