Hackerrank

Hackerrank

Hackerrank - 2D Array - DS - Solution

Given a  2D Array, : 1 1 1 0 0 0 0 1 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 We define an hourglass in  to be a subset of

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Hackerrank - Balanced Brackets Solution

A bracket is considered to be any one of the following characters: (, ), {, }, [, or ]. Two brackets are considered to be a matched pair if the an opening bracket (i.e., (, [, or {) occurs to the left of a closing bracket (i.e., ), ], or }) of the exact same type. There are three types

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Sherlock and Moving Tiles Solution

Sherlock is given  square tiles, initially both of whose sides have length  placed in an  plane; so that the bottom left corner of each square coincides with the the origin and their sides are parallel to the axes. At , both squares start moving along line  (along the positive  and ) with

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Hackerrank - Symmetric Difference Solution

Objective Today, we're learning about a new data type: sets. Concept If the inputs are given on one line separated by a space character, use split() to get the separate values in the form of a list: >> a = raw_input() 5 4 3 2 >>

Hackerrank

Set .discard(), .remove() & .pop() Solution

.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

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Hackerrank - Any or All Solution

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

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Hackerrank - Iterables and Iterators Solution

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

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Hackerrank - Print Function Solution

Hackerrank - Print Function Solution

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Hackerrank - Words Score 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:

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Hackerrank - ginortS Solution

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

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Athlete Sort Solution

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

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Regex Substitution Solution

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.