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Author: Administrator

Mono-Alphabetic Substitution Cipher

Posted on by Administrator Posted in Computer Science, Computing Concepts, Cryptography

A mono-alphabetic cipher (aka simple substitution cipher) is a substitution cipher where each letter of the plain text is replaced with another letter of the alphabet. It uses a fixed key which consist of the 26 letters of a “shuffled…

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Shuffling a 2D Array

Posted on by Administrator Posted in Algorithms, Computer Science, Python - Intermediate, Python Challenges

For this challenge we will investigate how to create a 2D array to store the value from 1 to 100 in a 10×10 array. We will then write an algorithm to shuffle the content of this array. See the code…

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Shuffling Algorithm

Posted on by Administrator Posted in Algorithms, Computer Science, Python - Intermediate, Python Challenges, Solved Challenges

Our aim is to implement a shuffling algorithm to shuffle a deck of playing cards. To do so, we will use a list called deck to store the 52 cards of the deck as follows: deck = ["Ace of hearts","2…

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Boggle Challenge

Posted on by Administrator Posted in Computer Science, Python - Advanced, Python Challenges

Boggle is a word game based on a 4×4 grid of 16 letters. Each time the game is played a new grid is generated. In the real game this is done by shaking a cube that contains 16 letter dice.…

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Computer Networks Crossword

Posted on by Administrator Posted in A Level Concepts, A Level Quiz, Computer Networks, Computer Science, Computing Concepts, Computing Terminology Quiz, Crosswords, GCSE Concepts, GCSE Quiz, Solved Challenges

Are you confident with your knowledge of network design concepts? Can you identify the purpose of the main network components used to set up a LAN or a WAN? You can find out more about key network design concepts on…

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What 3 Words Localisation

Posted on by Administrator Posted in Computer Science, JSON, Python - Advanced, Python Challenges

What3words is a geocode system used to communicate a location on planet Earth using only 3 words instead of using complex longitude and latitude coordinates. What3words have assigned each 3m square in the world a unique 3-word address that will…

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String Slicing in Python

Posted on by Administrator Posted in Computer Science, Python - Beginner, Python - Intermediate, Python Challenges, Solved Challenges

String? In computer science, a string is a piece of text or a collection of characters. String Length? The length of a string represents the number of characters it contains. In pyhon you can use the function len() to find…

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Floating Point Binary Converter

Posted on by Administrator Posted in A Level Concepts, Computer Science, Python - Advanced, Python Challenges

The purpose of this challenge is to write a Python program that will receive, as an input, a binary number expressed using a normalised floating point representation (using a 5-bit mantissa and a 3-bit exponent). The program will then calculate…

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Higher or Lower Number Game

Posted on by Administrator Posted in Computer Science, Python - Beginner, Python Challenges, Solved Challenges

For this challenge you will design and write a program to play against the computer. The computer will display a random number between 1 and 100. The user will have to try to guess this number. For each guess the…

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Higher or Lower LMC Challenge

Posted on by Administrator Posted in Computer Science, Little Man Computer (LMC), Solved Challenges

For this challenge you will write a program of Guess the number (Higher or Lower?) using LMC assembly language. Your program will be used by two users (player A and player B) as follows: Ask player A to input a…

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