Analysis

Let's take a look at how that would be in pseudocode:

Read file "thumbcount.txt" to get previous number of files

  Read directory "thumbnails" to get latest number of files

  If thumbnails != thumbcount {

      Delete everything in thumbnails directory

      Recreate thumbnails

  }

  

  Get new list of thumbnails

  For each thumbnail in thumbnails directory {

      Show thumbnail

  }

  

  Update thumbnail counter

Make sense? It is really not so hard, albeit in pseudocode currently.

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