#8kyu Development Tutorials & Tips | Roast Dev

Transportation on vacation

Instructions: After a hard quarter in the office you decide to get some rest on a vacation. So you will book a flight for you and your girlfriend and try to leave all the mess behind you.You will need...

17.03.2025 0 Read More

Correct the mistakes of the character recognition software

Instructions: Character recognition software is widely used to digitise printed texts. Thus the texts can be edited, searched and stored on a computer.When documents (especially pretty old ones writte...

18.03.2025 0 Read More

Reversed Strings

Instructions: Complete the solution so that it reverses the string passed into it.'world' => 'dlrow' 'word' => 'drow' Thoughts: I converted the string into an array to utilize the reverse()...

19.03.2025 0 Read More

Remove String Spaces

Instructions: Write a function that removes the spaces from the string, then return the resultant string.Examples (Input -> Output):"8 j 8 mBliB8g imjB8B8 jl B" -> "8j8mBliB8gimjB8B8jlB" "8...

21.03.2025 0 Read More

DNA to RNA Conversion

Instructions: Deoxyribonucleic acid, DNA is the primary information storage molecule in biological systems. It is composed of four nucleic acid bases Guanine ('G'), Cytosine ('C'), Adenine ('A'), and ...

31.03.2025 0 Read More

Powers of 2

Instructions: Complete the function that takes a non-negative integer n as input, and returns a list of all the powers of 2 with the exponent ranging from 0 to n ( inclusive ).Examples n = 0 ==> [...

19.04.2025 0 Read More

Difference of Volumes of Cuboids

Instructions: In this simple exercise, you will create a program that will take two lists of integers, a and b. Each list will consist of 3 positive integers above 0, representing the dimensions of cu...

20.04.2025 0 Read More

Convert a Number to a String!

Instructions: We need a function that can transform a number (integer) into a string. What ways of achieving this do you know?Examples (input --> output): 123 --> "123" 999 --> "999" -100 -...

21.04.2025 0 Read More

Convert boolean values to strings 'Yes' or 'No'.

Instructions: Complete the method that takes a boolean value and return a "Yes" string for true, or a "No" string for false.Thoughts: I used a ternary operator to cheek if the parameter is true. If it...

22.04.2025 0 Read More

If you can't sleep, just count sheep!!

Instructions: If you can't sleep, just count sheeps!!Task: Given a non-negative integer, 3 for example, return a string with a murmur: "1 sheep...2 sheep...3 sheep...". Input will always be valid, i.e...

25.04.2025 0 Read More