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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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Victor Mukhin

• Scientific Program

Title : Active carbons as nanoporous materials for solving of environmental problems

However, up to now, the main carriers of catalytic additives have been mineral sorbents: silica gels, alumogels. This is obviously due to the fact that they consist of pure homogeneous components SiO2 and Al2O3, respectively. It is generally known that impurities, especially the ash elements, are catalytic poisons that reduce the effectiveness of the catalyst. Therefore, carbon sorbents with 5-15% by weight of ash elements in their composition are not used in the above mentioned technologies. However, in such an important field as a gas-mask technique, carbon sorbents (active carbons) are carriers of catalytic additives, providing effective protection of a person against any types of potent poisonous substances (PPS). In ESPE “JSC "Neorganika" there has been developed the technology of unique ashless spherical carbon carrier-catalysts by the method of liquid forming of furfural copolymers with subsequent gas-vapor activation, brand PAC. Active carbons PAC have 100% qualitative characteristics of the three main properties of carbon sorbents: strength - 100%, the proportion of sorbing pores in the pore space – 100%, purity - 100% (ash content is close to zero). A particularly outstanding feature of active PAC carbons is their uniquely high mechanical compressive strength of 740 ± 40 MPa, which is 3-7 times larger than that of  such materials as granite, quartzite, electric coal, and is comparable to the value for cast iron - 400-1000 MPa. This allows the PAC to operate under severe conditions in moving and fluidized beds.  Obviously, it is time to actively develop catalysts based on PAC sorbents for oil refining, petrochemicals, gas processing and various technologies of organic synthesis.

Victor M. Mukhin was born in 1946 in the town of Orsk, Russia. In 1970 he graduated the Technological Institute in Leningrad. Victor M. Mukhin was directed to work to the scientific-industrial organization "Neorganika" (Elektrostal, Moscow region) where he is working during 47 years, at present as the head of the laboratory of carbon sorbents.     Victor M. Mukhin defended a Ph. D. thesis and a doctoral thesis at the Mendeleev University of Chemical Technology of Russia (in 1979 and 1997 accordingly). Professor of Mendeleev University of Chemical Technology of Russia. Scientific interests: production, investigation and application of active carbons, technological and ecological carbon-adsorptive processes, environmental protection, production of ecologically clean food.   

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A collection of solutions to competitive programming exercises on HackerRank.

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This is throw-away code that is only supposed to correctly get the job done. I used the code stubs provided by HackerRank, so don't mind the unnecessary imports, naming convention and so on. Feel free to use my solutions as inspiration, but please don't literally copy the code.

Certificates

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

The following is an incomplete list of possible problems per certificate as of 2021.09.15. Please let me know if the certificate problems have changed, so I can put a note here.

• 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
• Bitwise AND
• Equalizing Array Elements
• File Renaming
• Hotel Construction
• Largest Area
• Maximum Subarray Value
• Sorted Sums
• Task of Pairing
• User-Friendly Password System

Besides the solutions, there are Python 3 and C++ code stubs and some test cases so you can first try to solve the problems without time pressure if you want to.

• A Very Big Sum [url] [10p]
• ACM ICPC Team [url] [25p]
• Angry Professor [url] [20p]
• Append and Delete [url] [20p]
• Apple and Orange [url] [10p]
• Beautiful Days at the Movies [url] [15p]
• Between Two Sets [url] [10p]
• Bill Division [url] [10p]
• Birthday Cake Candles [url] [10p]
• Breaking the Records [url] [10p]
• Cats and a Mouse [url] [15p]
• Circular Array Rotation [url] [20p]
• Climbing the Leaderboard [url] [20p]
• Compare the Triplets [url] [10p]
• Counting Valleys [url] [15p]
• Cut the sticks [url] [25p]
• Day of the Programmer [url] [15p]
• Designer PDF Viewer [url] [20p]
• Diagonal Difference [url] [10p]
• Divisible Sum Pairs [url] [10p]
• Drawing Book [url] [10p]
• Electronics Shop [url] [15p]
• Equalize the Array [url] [20p]
• Extra Long Factorials [url] [20p]
• Find Digits [url] [25p]
• Forming a Magic Square [url] [20p]
• Frog in Maze [url] [65p]
• Grading Students [url] [10p]
• Jumping on the Clouds: Revisited [url] [15p]
• Jumping on the Clouds [url] [20p]
• Library Fine [url] [15p]
• Migratory Birds [url] [10p]
• Mini-Max Sum [url] [10p]
• Non-Divisible Subset [url] [20p]
• Number Line Jumps [url] [10p]
• Organizing Containers of Balls [url] [30p]
• Picking Numbers [url] [20p]
• Plus Minus [url] [10p]
• Queen's Attack II [url] [30p]
• Repeated String [url] [20p]
• Sales by Match [url] [10p]
• Save the Prisoner! [url] [15p]
• Sequence Equation [url] [20p]
• Sherlock and Cost [url] [50p]
• Sherlock and Squares [url] [20p]
• Simple Array Sum [url] [10p]
• Staircase [url] [10p]
• Subarray Division [url] [10p]
• Taum and B'day [url] [25p]
• The Hurdle Race [url] [15p]
• Time Conversion [url] [15p]
• Utopian Tree [url] [20p]
• Viral Advertising [url] [15p]
• Find more efficient solution for Maximum Subarray Value . It's getting timeouts for a few test cases.
• Verify correctness of Nice Teams .
• Python 74.3%

"Hello World!" in C Easy C (Basic) Max Score: 5 Success Rate: 85.68%

Playing with characters easy c (basic) max score: 5 success rate: 84.24%, sum and difference of two numbers easy c (basic) max score: 5 success rate: 94.58%, functions in c easy c (basic) max score: 10 success rate: 95.96%, pointers in c easy c (basic) max score: 10 success rate: 96.54%, conditional statements in c easy c (basic) max score: 10 success rate: 96.94%, for loop in c easy c (basic) max score: 10 success rate: 93.66%, sum of digits of a five digit number easy c (basic) max score: 15 success rate: 98.65%, bitwise operators easy c (basic) max score: 15 success rate: 94.87%, printing pattern using loops medium c (basic) max score: 30 success rate: 95.91%, cookie support is required to access hackerrank.

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