The challenge Given an integer numRows, return the first numRows of Pascal’s triangle. In Pascal’s triangle, each number is the sum of the two numbers directly above it… Read More »How to Solve Pascal’s Triangle in Python
The challenge Create a function that takes 2 nonnegative integers in form of a string as an input, and outputs the sum (also as a… Read More »How to Sum The Strings in Python
The challenge Everyone knows passphrases. One can choose passphrases from poems, songs, movies names and so on but frequently they can be guessed due to… Read More »Playing with passphrases in Python
The challenge You are given an m x n binary matrix grid. An island is a group of 1‘s (representing land) connected 4-directionally (horizontal or vertical.) You may assume all four… Read More »Find the Max Area of an Island in Python
The challenge Automatons, or Finite State Machines (FSM), are extremely useful to programmers when it comes to software design. You will be given a simplistic… Read More »A Simplistic TCP Finite State Machine (FSM) in Python
The challenge I will give you an integer. Give me back a shape that is as long and wide as the integer. The integer will… Read More »How to Build a Square in Python
The challenge Complete the solution so that it returns true if the first argument(string) passed in ends with the 2nd argument (also a string). Examples:… Read More »Check if String EndsWith in Python
Python comes with a built-in method on all String types, by calling lower() on a String, you can immediately lower the case of that String.… Read More »How to LowerCase a String in Python
If you have a decimal number, and want to get it’s binary value, you can use the built-in bin method. We can see that it… Read More »Number to Binary Conversion in Python
The challenge A binary gap within a positive integer N is any maximal sequence of consecutive zeros that is surrounded by ones at both ends in the… Read More »Counting Binary Gaps with Python
The challenge Given a non-negative integer, return an array / a list of the individual digits in order. Examples: The solution in Python code Option… Read More »How to Convert an Int to a List of Ints in Python
The challenge Create a Circular List A circular list is of finite size, but can infititely be asked for its previous and next elements. This… Read More »How to Create a Circular List in Python
The challenge Don Drumphet lives in a nice neighborhood, but one of his neighbors has started to let his house go. Don Drumphet wants to… Read More »Who is going to pay for the wall? in Python
The challenge Given two integer arrays where the second array is a shuffled duplicate of the first array with one element missing, find the missing… Read More »Find the missing element between two arrays in Python
The challenge Remove a exclamation mark from the end of string. You can assume that the input data is always a string, no need to… Read More »Remove an Exclamation Mark from the End of String using Python
The challenge Create a function close_compare that accepts 3 parameters: a, b, and an optional margin. The function should return whether a is lower than, close to, or higher than b. a is “close to” b if margin is… Read More »Compare within Margin using Python
The challenge You’re re-designing a blog and the blog’s posts have the following format for showing the date and time a post was made: Weekday Month Day, time e.g.,… Read More »Remove the time challenge in Python
The challenge Create a method that accepts a list and an item, and returns true if the item belongs to the list, otherwise false. Test cases The solution… Read More »Check if List contains Item in Python
The challenge Create a function called shortcut to remove all the lowercase vowels in a given string. Examples Don’t worry about uppercase vowels. Test cases The solution in Python… Read More »How to Remove Vowels with Python
In this tutorial, you will learn how to sort a list in Python, by following the below three steps: Options to sort a list in… Read More »How to Sort a List in Python
The challenge Your task is to create functionisDivideBy (or is_divide_by) to check if an integer number is divisible by each out of two arguments. A few cases:… Read More »How to divide a number in Python
Introduction 6174 is known as Kaprekar’s constant after the Indian mathematician D. R. Kaprekar. This number is notable for the following rule: Take any four-digit number, using at least two… Read More »How many times to Kaprekar’s constant using Python
The challenge Given a string s, write a method (function) that will return true if its a valid single integer or floating number or false… Read More »How to check if a String is a Number in Python
Generally, you want to use the built-in sorted() function which takes a custom comparator as its parameter. We need to pay attention to the fact that in… Read More »How to Write a Custom Comparator in Python
Let’s say that you have an integer with value of 9271 and you want to sort it either ascending(1279) or descending(9721). How would you do… Read More »How to Sort an Integer in Python