Evan Martin (evan) wrote in evan_tech,
Evan Martin
evan
evan_tech

time-space tradeoffs

I have a friend who, whenever presented a new algorithm, approach, or system, always asks the question: What is the time-space tradeoff? He's a little obsessed, and it's a little amusing, but it's also true that almost every data structure / algorithm can be considered in terms of that. (Sorting can be is O(n) if you have unique data and enough memory...)

All of that is mostly lead-up to say that rainbow tables are a great hack, and a perfect example of a good time-space tradeoff.
Tags: go read, personal
Subscribe

  • blog moved

    As described elsewhere, I've quit LiveJournal. If you're interested in my continuing posts, you should look at one of these (each contains feed…

  • dremel

    They published a paper on Dremel, my favorite previously-unpublished tool from the Google toolchest. Greg Linden discusses it: "[...] it is capable…

  • treemaps

    I finally wrote up my recent adventures in treemapping, complete with nifty clickable visualizations.

  • Post a new comment

    Error

    default userpic
    When you submit the form an invisible reCAPTCHA check will be performed.
    You must follow the Privacy Policy and Google Terms of use.
  • 8 comments