Algorithms in Colour…Fun for the Whole Family!

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The QuickSort algorithm in colour

Introduction

So I ordered a couple of things from Amazon and off I went…

Things you will need

Step 1 — Choose an algorithm

For this demonstration, I will use a QuickSort algorithm, following this example:

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QuickSort Algorithm (in its “boring form”)

Step 2 — Decide on the colour order

  • red
  • orange
  • yellow
  • light green
  • dark green
  • light blue
  • dark blue
  • purple
  • pink
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Count and order the colours you need

Step 3— Position numbers on a card with a pencil

KABOOM! Sadly, I forgot to take a photo at this point, but I’m sure you can work out what needs to go where from the example!

Step 4 — Lay coloured stickers in order on the bottom row

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Laying the first colour Red on the number -6

Step 5— Place each colour in its other spots

For example: the furthest most left colour is red, which was placed on the number -6. This means we must place a red sticker everywhere that we see a -6.

In my final picture, there’s another row along the bottom, which just reiterates the order of the colours as it looks nicer.

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Placing colours on the appropriate numbers

Step 6 — Mark the pivoting numbers

More information on what a pivot is can be found in this really good article written by another Medium blogger.

In the example I’m following, the first pivot selected was Green (no. 3).

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Define the First Pivot

Written by

George is a software engineer, author, blogger, and tech enthusiast who believes in helping others to make us happier and healthier.

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