Ordered Count of Characters in Python
The challenge Count the number of occurrences of each character and return it as a list of tuples in order of appearance. For empty output… Read More »Ordered Count of Characters in Python
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Largest Pair Sum in Array in Python
The challenge Given a sequence of numbers, find the largest pair sum in the sequence. For example Input sequence contains minimum two elements and every… Read More »Largest Pair Sum in Array in Python
Alphabet Symmetry in Python
The challenge Consider the word “abode”. We can see that the letter a is in position 1 and b is in position 2. In the alphabet, a and b are also in positions 1 and 2. Notice also that d and e in abode occupy the… Read More »Alphabet Symmetry in Python
Sum of Odd Cubed Numbers in Python
The challenge Find the sum of the odd numbers within an array, after cubing the initial integers. The function should return None if any of the… Read More »Sum of Odd Cubed Numbers in Python
Halving Sum in Python
The challenge Given a positive integer n, calculate the following sum: All elements of the sum are the results of integer division. Example The solution in… Read More »Halving Sum in Python
Convert a LinkedList to a String in Python
The challenge Preloaded for you is a class, struct, or derived data type Node (depending on the language) used to construct linked lists in this challenge: Create… Read More »Convert a LinkedList to a String in Python
Most Digits from List in Python
The challenge Find the number with the most digits. If two numbers in the argument array have the same number of digits, return the first… Read More »Most Digits from List in Python
Check if all Values in Array are Smaller in Python
The challenge You will be given an array and a limit value. You must check that all values in the array are below or equal to the limit value.… Read More »Check if all Values in Array are Smaller in Python
Maximum Product from List of Integers in Python
The challenge Given an array of integers, Find the maximum product obtained from multiplying 2 adjacent numbers in the array. Notes Array/list size is at least 2. Array/list numbers could be a mixture… Read More »Maximum Product from List of Integers in Python
Sum of Array Singles in Python
The challenge You are given an array of numbers in which two numbers occur once and the rest occur only twice. Your task is to… Read More »Sum of Array Singles in Python
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) order. Example:… Read More »Flatten and Sort an Array in Python
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… Read More »Playing the Alphabet War in Python
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 More »Sum of numbers from 0 to N in Python
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 in the array… Read More »Sorted? yes? no? how? ..in Python
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… Read More »How to Fix String Casing in Python
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 delta alpha… Read More »How to Remove Duplicate Words from a String in Python
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 More »How to Validate a Regex PIN Code in Python
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 letters – each taken only once – coming from… Read More »Combine strings and remove duplicates in Python
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 the… Read More »Return Short Long Short in Python
Hello, Name or World in Python
The challenge Define a method hello that returns “Hello, Name!” to a given name, or says Hello, World! if name is not given (or passed as an empty String). Assuming… Read More »Hello, Name or World in Python
Add Length to Strings in Python
The challenge What if we need the length of the words separated by a space to be added at the end of that same word… Read More »Add Length to Strings in Python
How to Reversing Words in a String in Python
The challenge Write a function that reverses the words in a given string. A word can also fit an empty string. If this is not… Read More »How to Reversing Words in a String in Python
How to Remove Duplicates from List in Python
The challenge Define a function that removes duplicates from an array of numbers and returns it as a result. The order of the sequence has… Read More »How to Remove Duplicates from List in Python
How to Format Dollars and Cents in Python
The challenge The company you work for has just been awarded a contract to build a payment gateway. In order to help move things along,… Read More »How to Format Dollars and Cents in Python
Return `5` without any numbers in Python
The challenge Write a function that always returns 5 Sounds easy right? Just bear in mind that you can’t use any of the following characters: 0123456789*+-/ The… Read More »Return `5` without any numbers in Python