Count-controlled loops are used in many programs to increment a counter for each iteration of the loop. Per default the increment for the counter is +1. FOR counter FROM 1 TO 10: OUTPUT (COUNTER) However you can specify a different…
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Atbash Cipher Algorithm
The Atbash Cipher is a monoalphabetic substitution cipher that was originally used for the Hebrew alphabet. It is one of the earliest known subtitution ciphers to have been used. As opposed to a Caesar Cipher, the Atbash cipher does not…
Polar vs. Cartesian Coordinates
In this blog post we will investigate two types of coordinates used to identify the location of a point on a 2D plan: Cartesian Coordinates (x,y) Polar Coordinates (r,θ) Both sets of coordinates have their own applications and are often…
MRX20 – Mission to Mars
The MRX20 probe was sent to Mars by the Inter-Continental Space Agency (ICSA) a few years ago. It was due to return to planet Earth just a few days ago. The probe collected a large amount of samples from the…
Caesar Shift Decoder
A Caesar Shift cipher is a type of mono-alphabetic substitution cipher where each letter of the plain text is shifted a fixed number of places down the alphabet. For example, with a shift of 1, letter A would be replaced…
The Dobble Algorithm
Dobble (Spot It! in the US) is a speedy observation card game for 2 players or more. During the game, players have to spot the identical symbol between two cards as quickly as possible to collect cards and score points.…
Manhattan distance calculator
When calculating the distance between two points on a 2D plan/map we often calculate or measure the distance using straight line between these two points. Thought this “as the crow flies” distance can be very accurate it is not always…
Secret Santa’s Ciphers
It’s only few days before Christmas so here are some secret messages from Santa for you to decode… Secret Message #1, encoded using Maritime Signal Flags International maritime signal flags are various flags used to communicate with ships. Each flag…
Level generation using a 2D array
In this post we will investigate how to generate a level/stage for a platform game using a 2D array. We will focus on the level for a 2D platform game such as Super Mario: By applying a grid layout to…
Heads or Tails
In this challenge we will create a game of heads to tails using the following rules: The game will consist of 5 rounds. In each round: the user will make a guess, the computer will flip a coin, the player…
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