Hackerrank

.remove(x) This operation removes element  from the set. If element  does not exist, it raises a KeyError. The .remove(x) operation returns None. Example>>> s = set([1, 2, 3, 4, 5, 6, 7, 8, 9]) >>> s.remove(5) >>> print s

any() This expression returns True if any element of the iterable is true. If the iterable is empty, it will return False. Code >>> any([1>0,1==0,1<0]) True >>> any([1<0,2<1,3<2]) False

The itertools module standardizes a core set of fast, memory efficient tools that are useful by themselves or in combination. Together, they form an iterator algebra making it possible to construct specialized tools succinctly and efficiently in pure Python. To read more about the functions in this module, check out

Hackerrank - Print Function Solution

In this challenge, the task is to debug the existing code to successfully execute all provided test files. Consider that vowels in the alphabet are a, e, i, o, u and y. Function score_words takes a list of lowercase words as an argument and returns a score as follows:

You are given a string S. S contains alphanumeric characters only. Your task is to sort the string  in the following manner: * All sorted lowercase letters are ahead of uppercase letters. * All sorted uppercase letters are ahead of digits. * All sorted odd digits are ahead of sorted even digits. Input

You are given a spreadsheet that contains a list of  athletes and their details (such as age, height, weight and so on). You are required to sort the data based on the th attribute and print the final resulting table. Follow the example given below for better understanding. Note that

The re.sub() tool (sub stands for substitution) evaluates a pattern and, for each valid match, it calls a method (or lambda).The method is called for all matches and can be used to modify strings in different ways.

You and Fredrick are good friends. Yesterday, Fredrick received  credit cards from ABCD Bank. He wants to verify whether his credit card numbers are valid or not. You happen to be great at regex so he is asking for your help! A valid credit card from ABCD Bank has the

Given a list of rational numbers,find their product. Concept The reduce() function applies a function of two arguments cumulatively on a list of objects in succession from left to right to reduce it to one value. Say you have a list, say [1,2,3] and you have to