#codewars 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

Isograms

Instructions: An isogram is a word that has no repeating letters, consecutive or non-consecutive. Implement a function that determines whether a string that contains only letters is an isogram. Assume...

20.03.2025 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

Beginner Series #3 Sum of Numbers

Instructions: Given two integers a and b, which can be positive or negative, find the sum of all the integers between and including them and return it. If the two numbers are equal return a or b.Note:...

22.03.2025 0 Read More

Two to One

Instructions: Take 2 strings s1 and s2 including only letters from a to z. Return a new sorted string (alphabetical ascending), the longest possible, containing distinct letters - each taken only once...

23.03.2025 0 Read More

Disemvowel Trolls

Instructions: Trolls are attacking your comment section!A common way to deal with this situation is to remove all of the vowels from the trolls' comments, neutralizing the threat.Your task is to write...

27.03.2025 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

Square Every Digit

Instructions: Welcome. In this kata, you are asked to square every digit of a number and concatenate them.For example, if we run 9119 through the function, 811181 will come out, because 92 is 81 and 1...

18.04.2025 0 Read More