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Sorting algorithms visualizer using Tkinter.
This module is comprised of three ``components'':
- an array visualizer with methods that implement basic sorting
operations (compare, swap) as well as methods for ``annotating'' the
sorting algorithm (e.g. to show the pivot element);
- a number of sorting algorithms (currently quicksort, insertion sort,
selection sort and bubble sort, as well as a randomization function),
all using the array visualizer for its basic operations and with calls
to its annotation methods;
- and a ``driver'' class which can be used as a Grail applet or as a
stand-alone application.
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