Flatten and Sort an Array in Python
The challenge
Given a two-dimensional array of integers, return the flattened version of the array with all the integers in the sorted (ascending) …
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In-depth guides, insights, and best practices for modern software engineering
Playing the Alphabet War in Python
The challenge
Introduction
There is a war and nobody knows – the alphabet war!
There are two groups of hostile letters. The tension between left side …
Sum of numbers from 0 to N in Python
The challenge
We want to generate a function that computes the series starting from 0 and ending until the given number.
Example:
Input: > 6 …
Read Article →Sorted? yes? no? how? ..in Python
The challenge
Complete the method which accepts an array of integers, and returns one of the following:
"yes, ascending"– if the numbers …
How to Fix String Casing in Python
The challenge
You will be given a string that may have mixed uppercase and lowercase letters and your task is to convert that string to either …
Read Article →How to Remove Duplicate Words from a String in Python
The challenge
Remove all duplicate words from a string, leaving only single (first) words entries.
Example:
Input:
‘alpha beta beta gamma gamma gamma …
Read Article →How to Validate a Regex PIN Code in Python
The challenge
ATM machines allow 4 or 6 digit PIN codes and PIN codes cannot contain anything but exactly 4 digits or exactly 6 digits.
If the …
Read Article →Combine strings and remove duplicates in Python
The challenge
Take 2 strings s1 and s2 including only letters from ato z. Return a new sorted string, the longest possible, containing distinct …
How to Repeat by String Index in Golang
The challenge
Create a function that repeats each character by the amount of it’s index value of the original string.
Examples: …
Read Article →How to make an arithmetic function in Java
The challenge
Given two numbers and an arithmetic operator (the name of it, as a string), return the result of the two numbers having that operator …
Read Article →Calculate the Third Angle of a Triangle in Go
The challenge
You are given two interior angles (in degrees) of a triangle.
Write a function to return the 3rd.
Note: only positive integers will be …
Read Article →Return Short Long Short in Python
The challenge
Given 2 strings, a and b, return a string of the form short+long+short, with the shorter string on the outside and the longer string on …