problem solving hackerrank solution python

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HackerRank Solutions in Python

Hello coders, in this post you will find each and every solution of HackerRank Problems in Python Language . After going through the solutions, you will be clearly understand the concepts and solutions very easily.

One more thing to add, don’t straight away look for the solutions, first try to solve the problems by yourself. If you find any difficulty after trying several times, then look for the solutions.

Python HackerRank Solutions

• Say “Hello, World!” With Python – Hacker Rank Solution
• Python If-Else – Hacker Rank Solution
• Arithmetic Operators – Hacker Rank Solution
• Python: Division – Hacker Rank Solution
• Loops – Hacker Rank Solution
• Write a Function – Hacker Rank Solution
• Print Function – Hacker Rank Solution
• List Comprehensions – Hacker Rank Solution
• Find the Runner-Up Score! – Hacker Rank Solution
• Nested Lists – Hacker Rank Solution
• Finding the Percentage – Hacker Rank Solution
• Lists – Hacker Rank Solution
• Tuples – Hacker Rank Solution
• sWAP cASE – Hacker Rank Solution
• String Split and Join – Hacker Rank Solution
• What’s Your Name? – Hacker Rank Solution
• Mutations – Hacker Rank Solution
• Find a String – Hacker Rank Solution
• String Validators – Hacker Rank Solution
• Text Alignment – Hacker Rank Solution
• Text Wrap – Hacker Rank Solution
• Designer Door Mat – Hacker Rank Solution
• String Formatting – Hacker Rank Solution
• Alphabet Rangoli – Hacker Rank Solution
• Capitalize! – Hacker Rank Solution
• The Minion Game – Hacker Rank Solution
• Merge the Tools! – Hacker Rank Solution
• Itertools.Product() – Hacker Rank Solution
• Collections.Counter() – Hacker Rank Solution
• Itertools.Permutations() – Hacker Rank Solution
• Polar Coordinates – Hacker Rank Solution
• Introduction to Sets – Hacker Rank Solution
• DefaultDict Tutorial – Hacker Rank Solution
• Calendar Module – Hacker Rank Solution
• Exceptions – Hacker Rank Solution
• Collections.namedtuple() – Hacker Rank Solution
• Time Delta – Hacker Rank Solution
• Find Angle MBC – Hacker Rank Solution
• No Idea! – Hacker Rank Solution
• Collections.OrderedDict() – Hacker Rank Solution
• Symmetric Difference – Hacker Rank Solution
• Itertools.Combinations() – Hacker Rank Solution
• Incorrect Regex – Hacker Rank Solution
• Set.add() – Hacker Rank Solution
• Itertools.combinations_with_replacement() – Hacker Rank Solution
• Word Order – Hacker Rank Solution
• Set.discard(), .remove() & .pop() – Hacker Rank Solution
• Collections.deque() – Hacker Rank Solution
• Compress the String! – Hacker Rank Solution
• Company Logo – Hacker Rank Solution
• Set.union() Operation – Hacker Rank Solution
• Piling Up! – Hacker Rank Solution
• Triangle Quest 2 – Hacker Rank Solution
• Iterables and Iterators – Hacker Rank Solution
• Set.intersection() Operation – Hacker Rank Solution
• Mod Divmod – Hacker Rank Solution
• Power – Mod Power – Hacker Rank Solution
• Maximize It! – Hacker Rank Solution
• Set.difference() Operation – Hacker Rank Solution
• Integers Come in All Sizes – Hacker Rank Solution
• Set.symmetric_difference() Operation – Hacker Rank Solution
• Set Mutations – Hacker Rank Solution
• Triangle Quest – Hacker Rank Solution
• The Captain’s Room – Hacker Rank Solution
• Check Subset – Hacker Rank Solution
• Check Strict Superset – Hacker Rank Solution
• Classes: Dealing With Complex Numbers – Hacker Rank Solution
• Class 2 – Find the Torsional Angle – Hacker Rank Solution
• Zipped! – Hacker Rank Solution
• Input() – Hacker Rank Solution
• Python Evaluation – Hacker Rank Solution
• Athlete Sort – Hacker Rank Solution
• Any or All – Hacker Rank Solution
• ginorts – Hacker Rank Solution
• Detect Floating Point Number – Hacker Rank Solution
• Map and Lambda Function – Hacker Rank Solution
• Re.split() – Hacker Rank Solution
• Validating Email Addresses With a Filter – Hacker Rank Solution
• Group(), Groups() & Groupdict() – Hacker Rank Solution
• Reduce Function – Hacker Rank Solution
• Re.findall() & Re.finditer() – Hacker Rank Solution
• Re.start() & Re.end() – Hacker Rank Solution
• Regex Substitution – Hacker Rank Solution
• Validating Roman Numerals – Hacker Rank Solution
• Validating Phone Numbers – Hacker Rank Solution
• Validating and Parsing Email Address – Hacker Rank Solution
• Hex Color Code – Hacker Rank Solution
• HTML Parser – Part 1 – Hacker Rank Solution
• HTML Parser – Part 2 – Hacker Rank Solution
• Detect HTML Tags, Attributes and Attribute Values
• XML 1 – Find the Score – Hacker Rank Solution
• Validating UID – Hacker Rank Solution
• Validating Credit Card Numbers – Hacker Rank Solution
• XML2 – Find the Maximum Depth – Hacker Rank Solution
• Standardize Mobile Number Using Decorators – Hacker Rank Solution
• Validating Postal Codes – Hacker Rank Solution
• Decorators 2 – Name Directory – Hacker Rank Solution
• Matrix Script – Hacker Rank Solution
• Words Score – Hacker Rank Solution
• Arrays – Hacker Rank Solution
• Shape and Reshape – Hacker Rank Solution
• Default Arguments – Hacker Rank Solution
• Transpose and Flatten – Hacker Rank Solution
• Concatenate – Hacker Rank Solution
• Zeros and Ones – Hacker Rank Solution
• Eye and Identity – Hacker Rank Solution
• Array Mathematics – Hacker Rank Solution
• Floor, Ceil and Rint – Hacker Rank Solution
• Sum and Prod – Hacker Rank Solution
• Min and Max – Hacker Rank Solution
• Mean, Var and Std – Hacker Rank Solution
• Dot and Cross – Hacker Rank Solution
• Inner and Outer – Hacker Rank Solution
• Polynomials – Hacker Rank Solution
• Linear Algebra – Hacker Rank Solution

Disclaimer: The above Python Problems are generated by Hacker Rank but the Solutions are Provided by CodingBroz . These tutorials are only for Educational and Learning Purpose.

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Solutions to HackerRank Coding Challenges in Python

One of the best ways to absorb and retain new concepts that I have learnt about coding in Python is through documentation! As part of my journey to future-proof my data career and also to improve my proficiency in the python language, I have spent some of my free time to solve coding challenges on HackerRank . In this blog post, I shared the solutions to some of the practice challenges which I have completed and successfully passed the code in the compiler on HackerRank . Do click on Read More or the title of this blog post for the Python 3 solutions which I have created.

Arithmetic Operators

Print function, write a function, python introduction (easy) questions.

Given an integer, n , perform the following conditional actions:

• If n is odd, print Weird
• If n is even and in the inclusive range of 2 to 5 , print Not Weird
• If n is even and in the inclusive range of 6 to 20 , print Weird
• If n is even and greater than 20 , print Not Weird

Input Format: A single line containing a positive integer, n .

Constraints:

• 1 <= n <= 100

Output Format: Print Weird if the number is weird. Otherwise, print Not Weird .

The provided code stub reads two integers from STDIN, a and b . Add code to print three lines where:

• The first line contains the sum of the two numbers.
• The second line contains the difference of the two numbers (first - second).
• The third line contains the product of the two numbers.

Print the following:

Input Format: The first line contains the first integer, a . The second line contains the second integer, b .

Output Format: Print the three lines as explained above.

Sample Input 0

Sample Output 0

The provided code stub reads two integers from STDIN, a and b . Add logic to print two lines. The first line should contain the result of integer division, a//b . The second line should contain the result of float division, a/b .

No rounding or formatting is necessary.

• The result of the integer division 3//5 = 0 .
• The result of the float division is 3/5 = 0.6 .

Input Format

The first line contains the first integer, a . The second line contains the second integer, b .

Output Format

Print the two lines as described above.

The provided code stub reads and integer, n , from STDIN. For all non-negative integers i < n , print i**2 .

The list of non-negative integers that are less than n = 3 is [0,1,2] . Print the square of each number on a separate line.

Input Format: The first and only line contains the integer, n .

Constraints: 1 <= n <= 20

Output Format: Print n lines, one corresponding to each i .

The included code stub will read an integer, n , from STDIN.

Without using any string methods, try to print the following: 123 . . . n

Note that “…” represents the consecutive values in between.

Example n=5

Print the string 12345 .

Input Format: The first line contains an integer n .

Constraints: 1 <= n <= 150

Output Format: Print the list of integers from 1 through n as a string, without spaces.

Python Introduction (Medium) Questions

An extra day is added to the calendar almost every four years as February 29, and the day is called a leap day. It corrects the calendar for the fact that our planet takes approximately 365.25 days to orbit the sun. A leap year contains a leap day.

In the Gregorian calendar, three conditions are used to identify leap years:

• The year can be evenly divided by 100, it is NOT a leap year, unless:
• The year is also evenly divisible by 400. Then it is a leap year. This means that in the Gregorian calendar, the years 2000 and 2400 are leap years, while 1800, 1900, 2100, 2200, 2300 and 2500 are NOT leap years.

Given a year, determine whether it is a leap year. If it is a leap year, return the Boolean True , otherwise return False .

Note that the code stub provided reads from STDIN and passes arguments to the is_leap function. It is only necessary to complete the is_leap function.

Input Format: Read year , the year to test.

Constraints

1900 <= year <= 10 ** 5

Output Format: The function must return a Boolean value (True/False). Output is handled by the provided code stub.

Explanation 0

1990 is not a multiple of 4 hence it’s not a leap year.

Python Problem Solution of HackerRank

In this series, I will share the code of HackerRank's Python problems. I will suggest you to not to copy this code. Just get the idea and try to solve it by yourself. 

Course Curriculum

Introduction.

• 1 Say Hello, World With Python - Solution - HackerRank
• 2 Python If-Else
• 3 HackerRank Arithmetic Operators Problem Solutions
• 4 Python: Division
• 5 HackerRank Python Loops Problem Solutions
• 6 Write a function - HackerRank Problem Solution
• 7 HackerRank Print Function Problem Solutions

Basic Data Types

• 8 HackerRank List Comprehensions Problem Solutions
• 9 Find the Runner-Up Score - Solution of HackerRank Python
• 10 Nested Lists - Python problem solution of HackerRank
• 11 Finding the percentage
• 12 Lists - HackerRank Python Basic Data Types Solution
• 13 HackerRank Python Basic Data Type Tuples Problem Solution
• 14 sWAP cASE - HackerRank String Problem
• 15 String Split and Join - HackerRank Python String Problem Solution
• 16 What's Your Name? - HackerRank Python String Problem Solution
• 17 HackerRank Python String Mutations Problem Solutions
• 18 Find a string - Python Solution
• 19 HackerRank String Validators Problem Solution
• 20 Text Alignment - HackerRank Python String Problem Solution
• 21 Text Wrap - HackerRank Python String Problem Solution
• 22 Designer Door Mat using python
• 23 Python String Formatting
• 24 Alphabet Rangoli
• 25 Capitalize string using python
• 26 The Minion Game - Python string problem solution
• 27 Merge the Tools - Python string problem solution
• 28 Introduction to Sets - Python sets
• 29 No Idea! - Python Set Problem Solution
• 30 Symmetric Difference - Python Sets Solution
• 31 Set .add - Adding item to python set
• 32 Python Set discard, remove and pop functions
• 33 Python Set Union Operation
• 34 Python Set Intersection Operation
• 35 Finding difference between two set in python
• 36 Python set symmetric_difference Operation
• 37 Python Set Mutations Operation
• 38 The Captain's Room Problem Solution
• 39 Checking Subset in Python
• 40 Check Strict Superset in python
• 41 Polar Coordinates - Solution Python
• 42 Find Angle MBC - Problem solution in Python
• 43 Triangle Quest 2 - Problem Solution in Python
• 44 Mod Divmod - Python Math Solution
• 45 Power - Mod Power - HackerRank Python Math Solution
• 46 Integers Come In All Sizes - Python math solution.
• 47 Triangle Quest - Python math solution
• 48 Computes the cartesian product in Python
• 49 Calculating permutations in Python
• 50 Calculating combinations in Python
• 51 Python combinations_with_replacement of itertools
• 52 Compress the String! - Python Solution

Collections

• 53 Use of counter() function of collections module
• 54 Python DefaultDict of collections module
• 55 Python namedtuple of collections module
• 56 Python OrderedDict() function of Collections module
• 57 Python deque() function of Collections module

Date and Time

• 58 Python Calendar Module
• 59 Python zip() function
• 60 Python Evaluation - HackerRank solution
• 61 Python any() and all() function

HackerRank Developer Skills Platform pricing & review: Is it a good value for money?

About hackerrank developer skills platform.

HackerRank Developer Skills Platform is an online platform that specializes in assessing and evaluating the skills of developers across various domains. It offers a wide range of coding challenges and assessments designed to test candidates’ programming abilities, problem-solving skills, and technical knowledge.

Companies use HackerRank for pre-employment screening, technical interviews, and skill evaluation purposes. The platform provides a comprehensive set of tools for creating custom coding challenges, conducting remote assessments, and analyzing candidates’ performance.

   Looking for Recruitment Software ? Check out the best recruitment software .

With features like real-time coding environments, automated code evaluation, and plagiarism detection, HackerRank ensures the integrity and accuracy of assessment results. It is a valuable resource for companies looking to identify top developer talent efficiently and streamline their hiring process.

HackerRank Developer Skills Platform Pricing:

1. HackerRank Developer Skills Platform offers a flexible pricing plan based on the number of assessments and candidates you need to evaluate.

2. The pricing starts at $100 per month for 1 user 

3. Pro pricing starts at $450 per month for 5 users

4. Additional features such as custom branding, advanced analytics, and dedicated customer support may be available at an additional cost.

5. Pricing may vary based on the specific needs and requirements of each organization, so it is recommended to contact HackerRank directly for a personalized quote.

HackerRank Developer Skills Platform Review: Key Features and Functionality

Coding challenges: .

HackerRank offers a wide range of coding challenges that test developers’ problem-solving skills and coding abilities. These challenges cover various programming languages and difficulty levels, allowing developers to practice and improve their skills.

Pros : Coding challenges help developers enhance their problem-solving skills, learn new programming concepts, and prepare for technical interviews.

Cons : Some developers may find the challenges too difficult or time-consuming, especially if they are new to coding.

Skill Assessments: 

HackerRank provides skill assessments that allow companies to evaluate candidates’ technical skills and knowledge. These assessments cover a variety of topics, including data structures, algorithms, and specific programming languages.

Pros : Skill assessments help companies identify top talent, streamline the hiring process, and ensure that candidates have the necessary skills for the job.

Cons : Some candidates may feel pressured or stressed during skill assessments, which could affect their performance.

Best HR Software Solutions

Campus Recruitment Software

With our online campus recruitment software screen, hire top talents hassle-free. Everything is under one platform, from test creation to the candidate's evaluation. from test creation to the candidate's evaluation.

Rating 5.0   

Based on 321 user ratings

API Integration by Xobin

Get integrated and harness the strength of robust assessments with Xobin APIs. Save sweat and time and focus on your core offering, not building your assessment stack. from test creation to

Psychometric Testing Software

With Xobin’s Psychometric Testing Software, you get insights into a candidate’s behavior and personality traits. Gain valuable insights on candidates and make smart hiring decisions.

Coding Skill Assessment Software

With our 100+ coding assessments on various languages such as Java, Python, JavaScript, React, Angular, etc., evaluate and hire the best-talented developers. from test creation to the candidate's evaluation. to the candidate's evaluation.

Pre-Employment Testing Software:

Get access to the vast library of validated tests to screen candidates using online assessments. Simplify your recruitment process with our cloud-based Pre-employment Testing Software. from test creation to the candidate's evaluation.

Pre-recorded Video Interview Platform:

Pre-recorded Video Interview Platform allows candidates to fully express themselves to a pre-recorded question. So that you can get more insight into candidates in far less time than a traditional phone interview. from test creation to the candidate's evaluation.

Interview Preparation: 

HackerRank offers interview preparation resources, including mock interviews, coding tutorials, and tips for technical interviews. These resources help developers prepare for coding interviews and improve their problem-solving abilities.

Pros : Interview preparation resources help developers build confidence, practice coding under pressure, and improve their communication skills during interviews.

Cons : Some developers may find the interview preparation resources overwhelming or too time-consuming.

HackerRank’s CodePair feature allows developers to collaborate in real-time on coding challenges and technical interviews. This feature enables companies to assess candidates’ problem-solving abilities, coding skills, and teamwork capabilities.

Pros : CodePair promotes collaboration, communication, and teamwork among developers, making it easier for companies to evaluate candidates’ technical skills and cultural fit.

Cons : Some developers may find it challenging to work with others in real-time, especially if they are used to coding independently.

Customization Options: 

HackerRank offers customization options for companies to tailor the platform to their specific needs and requirements. Companies can create custom coding challenges, skill assessments, and interview questions to align with their hiring criteria and technical standards.

Pros : Customization options allow companies to personalize the hiring process, attract top talent, and assess candidates based on their unique requirements.

Cons : Some companies may find it challenging to create and manage custom content on the platform, especially if they lack technical expertise or resources.

HackerRank Developer Skills Platform the Right Choice for Your Team?

HackerRank Developer Skills Platform is a comprehensive tool designed to assess and enhance the skills of individuals, teams, and enterprises. But is it the right choice for your team? To determine this, it’s crucial to explore what other HackerRank customers have to say about the platform and whether their experiences align with your specific business needs.

According to G2 reviews, HackerRank Developer Skills Platform boasts an impressive overall rating of 4.5 out of 5. Taking a closer look at the individual ratings, the platform also excels in the following areas (out of 10):

Ease of Use: 9.3/10

Quality of Support: 8.8/10

Ease of Setup: 8.9/10

Value for Money: 9.0/10

Functionality: 8.9/10

How does Xobin compare to HackerRank Developer Skills Platform?

When it comes to Xobin, the platform shines with impressive ratings across various aspects, as per G2 reviews. With an overall score of 4.7 out of 5, Xobin excels in key categories such as:

• Ease of Use: 9.1/10,
• Quality of Support: 9.5/10,
• Ease of Setup: 9.1/10,
• Value for Money: 9.6/10, and
• Functionality: 9.2/10.

These ratings showcase Xobin’s commitment to providing a user-friendly experience, excellent support, easy setup process, great value for investment, and robust functionality. When comparing Xobin to HackerRank Developer Skills Platform, Xobin stands out in several key features:

Psychometric Testing Software:

Xobin’s Psychometric Testing Software provides valuable insights into the behavioral and personality traits of applicants, helping recruiters make informed hiring decisions. This feature is essential for identifying the right fit for a role based on more than just technical skills.

Extensive Question Library:

With over 1,80,000+ Tech and Non-Tech questions in its question bank, Xobin offers a vast array of assessment options for recruiters. This extensive library ensures that recruiters can create assessments tailored to specific roles and industries.

Automated Video Interviews:

Xobin’s Automated Video Interviews streamline the screening process by allowing candidates to showcase their skills and personality through on-demand video interviews. This feature saves time for both recruiters and candidates, making the hiring process more efficient.

AI Evaluate:

Xobin’s AI Evaluate feature uses state-of-the-art Generative AI to automate the answer evaluation process, saving hiring managers and recruiters valuable time. This advanced technology ensures a fair and accurate assessment of candidates’ responses.

EyeGazer Based Proctoring:

Xobin’s EyeGazer Based Proctoring technology enhances exam integrity by tracking candidates’ eye movements during assessments. This feature ensures that candidates stay focused and comply with exam rules, providing a secure and trustworthy testing environment.

In comparison, while HackerRank Developer Skills Platform offers a range of coding challenges and assessments, Xobin’s focus on psychometric testing, extensive question library, automated video interviews, AI evaluation, and eye-tracking technology sets it apart in terms of providing a comprehensive and innovative skill assessment solution for recruiters across industries.

FAQ’s

How can HackerRank Developer Skills Platform help me assess the technical skills of candidates?

HackerRank Developer Skills Platform offers a wide range of coding challenges, assessments, and interviews to help you evaluate the technical skills of candidates accurately. You can create custom tests, track candidate progress, and analyze results to make informed hiring decisions.

Can I integrate HackerRank Developer Skills Platform with my existing recruitment software?

Yes, HackerRank Developer Skills Platform offers seamless integration with popular recruitment software like Greenhouse, Lever, and Workable. This integration allows you to streamline your hiring process and access candidate assessment data directly from your existing tools.

Is HackerRank Developer Skills Platform suitable for hiring developers across different programming languages and skill levels?

Yes, HackerRank supports assessments in over 35 programming languages and offers challenges for beginners to experienced developers. Whether you’re hiring for front-end, back-end, or full-stack roles, you can find relevant assessments to evaluate candidates effectively.

Negative FAQ for HackerRank Developer Skills Platform:

How does HackerRank Developer Skills Platform compare to Xobin in terms of candidate assessment accuracy?

While HackerRank Developer Skills Platform is a popular choice for technical assessments, Xobin offers a more comprehensive and AI-driven approach to candidate evaluation. Xobin’s platform uses advanced algorithms to analyze candidate responses and provide detailed insights into their technical skills, making it a more accurate tool for assessing developer capabilities.

Disclaimer : This blog’s competitor information, gathered from May to June 2024, relies on public data, market research, and insights available at the time of writing. Although we aim for accuracy, the competitive environment can shift rapidly. Therefore, we cannot ensure the information’s completeness, accuracy, or timeliness. Readers should independently verify details and consider the industry’s fluidity.

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Arrays Easy Python (Basic) Max Score: 20 Success Rate: 96.68%

Shape and reshape easy python (basic) max score: 20 success rate: 95.35%, transpose and flatten easy python (basic) max score: 20 success rate: 96.91%, concatenate easy python (basic) max score: 20 success rate: 98.61%, zeros and ones easy python (basic) max score: 20 success rate: 95.22%, eye and identity easy python (basic) max score: 20 success rate: 95.53%, array mathematics easy python (basic) max score: 20 success rate: 95.05%, floor, ceil and rint easy python (basic) max score: 20 success rate: 96.80%, sum and prod easy python (basic) max score: 20 success rate: 98.07%, min and max easy python (basic) max score: 20 success rate: 98.23%, cookie support is required to access hackerrank.

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HackerRank Arithmetic Operators solution in python

In this HackerRank Arithmetic Operators problem-solution set, The provided code stub reads two integers from STDIN, a and b. Add code to print three lines where:

• The first line contains the sum of the two numbers.
• The second line contains the difference of the two numbers (first - second).
• The third line contains the product of the two numbers.

Problem solution in Python 2 programming.

Problem solution in Python 3 programming.

Problem solution in pypy programming., problem solution in pypy3 programming..

Posted by: YASH PAL

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Solutions to Certification of Problem Solving Basic on Hackerrank

reebaseb/Hackerrank_ProblemSolvingBasic_Certificate_test-soltions

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Hackerrank problem solving(basic) certificate test soltions.

To get a certificate, two problems have to be solved within 90 minutes.

The following is a list of possible problems per certificate.

• Active Traders
• Balanced System Files Partition
• Longest Subarray
• Maximum Cost of Laptop Count
• Nearly Similar Rectangles
• Parallel Processing
• Password Decryption
• Road Repair
• String Anagram
• Subarray Sums
• Unexpected Demand
• Usernames Changes
• Vowel Substring
• Python 100.0%