Question 1[2 marks] class Padlock: private key private locked //Constructor for the Padlock class: procedure new(str_key,bool_locked): key = str_key locked = bool_locked public function unlock(combination): if combination==key: locked = False return True else: return False public procedure lock(): locked =… 
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OOP – Encapsulation – Q&A
Question 1[2 marks] class Padlock: private key private locked //Constructor for the Padlock class: procedure new(str_key,bool_locked): key = str_key locked = bool_locked public function unlock(combination): if combination==key: locked = False return True else: return False public procedure lock(): locked =… Maths Puzzles…
The aim of this challenge is to write a few algorithms to solve the following Maths puzzles: In order to solve these puzzles, we will use an iterative approach using nested loops to test all possible combinations of two numbers…
Brunel’s Engineering Algorithms
Isambard Kingdom Brunel (1806-1859) was an English civil engineer who is considered one of the greatest figures of the Industrial Revolution. Brunel achieved many engineering firsts thanks to his hard-work, his engineering knowledge, his innovative mind and his renowned problem…
The Climbing Stairs Puzzle
Imagine a staircase with n steps. As you are climbing up this staircase, you either climb one or two steps at a time. The aim of this computing puzzle is to find out, using an algorithm, in how many distinct…
French Cuisine – Entity Relationship Diagram (ERD)
French Cuisine is a 5-star restaurant serving a selection of carefully selected French recipes in a cosy atmosphere. Their menu is organised into 4 categories as follows: Starters, Main Meals, Deserts & Drinks. In the dining area, there are 21…
10/02/22 Computing Challenge
As this post was published on the 10th of February 2022 (10/02/22), we would like to use a Python algorithm to solve the following arithmetic puzzle: Let’s consider a string consisting of 10 characters “2”: string = “2222222222” This computing…
EasyFlights – Entity Relationship Diagram (ERD)
EasyFlights is an international airline company operating all over the world. As part of a total rollout of all their IT systems, they would like you to suggest the most suitable ERD to be used to design the relational database…
web2.0 – Entity Relationship Diagrams (ERD)
Have you ever created a website using HTML, CSS and JavaScript? These three languages are client-side languages which run on your computer through the web-browser and are used to create static websites. HTML is used to add content to a…
Rent-A-Bike – Entity Relationship Diagram (ERD)
Rent-a-Bike is a company offering a bike rental service in the London area. They would like a new IT system to replace their existing booking system. You have been asked to investigate their requirements in order to design the Entity…
Driving School – Entity Relationship Diagram (ERD)
Learn2Drive is a driving school that consists of 5 driving instructors. They would like a new IT system that will be used to store information about their instructors, learners, lessons and vehicles used by the instructors. When creating such a…
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