title: Erlang data structures
body: <p>I'm a bit confused about what data structure I can use to be able to do following tasks rather fast:</p>
  
  <ol>
  <li>Save tuples (can be changed to contain a keyword). Will be something like {UserInfo, Time, TimeLvl}</li>
  <li>Remove element knowing the tuple (or the keyword)</li>
  <li>Update all contained elements, changing one of the tuple's elements about once a second (TimeLvl will get higher the longer the user waits).</li>
  </ol>
  
  <p>The Contained data will change a lot as users come and go.</p>
  
  <p>What would be the best data-structure for this use case?</p>