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List of Python Kata to Update

saudiGuy11 edited this page Sep 15, 2024 · 779 revisions
  • Python 3.8 List of kata stuck in Python 3.8. Should be prioritized so we can get rid of the older version. Note that updating to decorator syntax is not required.
  • Python 3.10 List of kata stuck in Python 3.10.
  • Update to decorator syntax List of kata not using the new decorator syntax.

NOTE: Simply remove the kata from the list after updating.

Python 3.8

This section lists kata that failed to update to Python 3.10 or 3.11 automatically.

  1. Create a one-liner FTP client with the ftplib
  2. Find Ends of Each Paths
  3. One Line Task: Zero Or One
  4. The Messenger's Oracle

Python 3.10

This section lists kata that failed to update to Python 3.11 from 3.10 automatically or was created with Python 3.10 after the attempt.

  1. Big Big Big Padovan Number
  2. Big Generalized Fibonacci numbers
  3. Byte me!
  4. Calculate k-th digit of π (Pi)
  5. Convergents of e
  6. Data mining #2
  7. Fabergé Easter Eggs crush test
  8. Fibonacci With a Broken Interpreter
  9. How many double digits?
  10. I said the word WOULD instead of WOULDN'T
  11. Last digits of N^2 == N
  12. Matrix Exponentiation
  13. Micro Optimization: Digit Sum
  14. Next smaller pronic
  15. Number Decoding
  16. Pack Some Chocolates
  17. Pandas Series 103: Filter Rows From DataFrames That Don't Satisfy Condition
  18. Perimeter of squares in a rectangle
  19. pipi Numbers!
  20. Planning a city quarantine
  21. Reverse a singly-linked list
  22. Shuffle It Up II
  23. Squares sequence
  24. Sum of all numbers with the same digits (performance edition)
  25. Sum of certain products II
  26. Time Is Money (number of operations)
  27. Validate FEN notation
  28. Web Polygons
  29. Wordle! Cheat bot

Test Framework

This section lists Python kata without @test.it in submission tests. This doesn't prevent Python 3.8 upgrade, but we'll be able to make the test framework behave less awkwardly if we can update all kata to the new syntax.

  1. [Code War] The Weapon Factory: Assembly Line
  2. #3 Matrices: Rearrange the matrix
  3. 2 Arrays 1 Sort
  4. 3-2-1 Fire!
  5. 3D Cellular Neighbourhood
  6. 3D Sudoku Builder (a.k.a. multisize skyscraper puzzle)
  7. 4 By 4 Skyscrapers
  8. 5x5 Nonogram Solver
  9. A Crazy Robot? Who's is behind the scenes to make that?
  10. A Python iterator for people scared of Exceptions.
  11. AD2070: Help Lorimar troubleshoot his robots-Search and Disable
  12. Adding words - Part I
  13. Adding words - Part II
  14. ADFGX Simplified
  15. AdFly Encoder and Decoder
  16. Airport Arrivals/Departures - #1
  17. Alex & snooker: points earned.
  18. Algebraic Lists
  19. Algorithm Fun: Find The Unknown Number - Part I
  20. All divisors of large numbers
  21. All Star Code Challenge #31
  22. All that is open must be closed...
  23. Alpha to Numeric and Numeric to Alpha
  24. An Introduction to DocTesting...
  25. Angle between two planes
  26. Answer the students' questions!
  27. Apparently-Modifying Strings
  28. Approximate Fractions
  29. Approximate solution of differential equation with Runge-Kutta 4
  30. Are they really equals ?
  31. Are the numbers in order?
  32. Are you available?
  33. Are you Geometric or Arithmetic? No, I´m both of them.
  34. Area of a Shape
  35. Arithmetic Expression Placeholders
  36. Arithmetic Sequence - find hidden
  37. Arithmetic Sequence!
  38. Array Hyperrectangularity
  39. Array Info
  40. Array reduction
  41. Array to HTML table
  42. ASCII Cipher
  43. ASCII Logo Basic
  44. ASCII85 Encoding & Decoding
  45. Assembling a Circular Genome (Shortest Common Superstring)
  46. Assorted Rectangular Pieces Puzzle
  47. Asyncio - The Beginning
  48. Author Disambiguation: a name is a Name!
  49. Author Disambiguation: Signatures worth it
  50. Author Disambiguation: to the point
  51. Averaging in an Infinite Array
  52. Avoid trillion years of calculations !!
  53. Bad Apples
  54. Bad Exception Handling
  55. Balance the parentheses
  56. Balanced parentheses string
  57. Base Conversion
  58. Base Reduction
  59. BasE91 encoding & decoding
  60. Basic Optimization - Collatz Sum Sequence
  61. Basic physics problem - Space -Kinematics
  62. Basic socket server
  63. Basic subclasses - Adam and Eve
  64. Batman Quotes
  65. Become The Ultimate Phychic
  66. Beggar Thy Neighbour
  67. Bernoulli numbers
  68. Berserk rater: CG Vs. Clang
  69. Bezier Curves
  70. Big Generalized Fibonacci numbers
  71. Binary Range Extraction
  72. Binary search tree validation
  73. Binary Search Trees
  74. Binary Simulation
  75. Binary Tree Compare
  76. Binding of Algebraic Data Types
  77. Bingo Card
  78. Bishop Movement checker
  79. Blaine is a pain
  80. Blobservation
  81. Bloxorz Solver
  82. Boolean array generator
  83. Bowling score calculator
  84. Bracket Buster
  85. Brainfuck Translator
  86. Bridge Puzzle
  87. Bridge: SAYC Openings
  88. Build a Trie
  89. Building blocks
  90. Building Chains Using the Arithmetic Derivative of a Number
  91. Button sequences
  92. Cable Matching Problem
  93. Caeser Encryption
  94. Calculate daily accurate interest for a bank account
  95. Calculate the expression
  96. Calculating Expected Utility
  97. Call Center Call Backs
  98. Can these three numbers form a date?
  99. can you guess what it is ?
  100. Candy thieves
  101. Car Rental Business Needs Statistics and Programming
  102. Card-Chameleon, a Cipher with Playing Cards
  103. Carpet shop
  104. Cartesian neighbors distance
  105. Cartesian product
  106. Castle of Cubes
  107. Cat and Mouse - 2D Version
  108. Challenge Fun #17: Merge Arrays
  109. Chameleon unity
  110. Cheat at rock paper scissors!
  111. Check and Mate?
  112. Checkerboard King Combo Move
  113. Checkout Line Pricing
  114. Chess Fun #10: Chess Encryption
  115. Chess Fun #9: Bishops And Rooks
  116. Chess position parser (FEN)
  117. Children and candies
  118. Chocolate problem
  119. Choose featured projects for Gratipay's homepage!
  120. Circle area inside square
  121. Circular Limited Sums
  122. Clock Hands
  123. Clock Lock - Save the World, Time Traveler! :)
  124. Clone Graph
  125. Cockroach Bug Scatter
  126. Codenames - matrix conversions
  127. Codewars API
  128. Codwars or Codewars?
  129. Cody Block's Pro Skater
  130. Columnar Transposition Cipher Collisions
  131. Composed Integers Having Prime Factors Only Once
  132. Compound Nouns, Common Nouns, and Adjectives Test
  133. Computational Geometry #1: Mixing Paints
  134. Compute Nullable Non-Terminals
  135. Confidence Intervals
  136. Connect Four - placing tokens
  137. Consecutive Digit Constraints
  138. Construct Graph Class (simple)
  139. Context manager decorator
  140. Continuation in arguments, part 1
  141. Convergents of e
  142. Convert between radians and degrees
  143. Convert integer to Whitespace format
  144. Convex hull area
  145. Conways game of life on a toroidal array
  146. Coordinates Validator
  147. Coping with NP-Hardness #1: 2-SAT
  148. Coping with NP-Hardness #2: Max Weight Independent Set of a Tree
  149. Coping with NP-Hardness #3: Finding the Minimum Hamiltonian Cycle
  150. Coping with NP-Hardness #4: 3-Recoloring
  151. Correct the date-string
  152. Count Connectivity Components
  153. Count the days!
  154. Count The Hits Adding Contiguous Powers!
  155. Countdown
  156. Counting Cuts
  157. Counting hexagons
  158. Courier 🚚
  159. Cracking the Vigenère cipher, step 1: determining key length
  160. Crane Operation
  161. Crazed Templating
  162. Create a one-liner FTP client with the ftplib
  163. Cricket Scores
  164. Crouching Distribution, Hidden Constant
  165. Custom Array Filters
  166. Custom Christmas Tree III: the center of leaves
  167. Cut me in Pieces but in The Way I Like
  168. Cut the cake
  169. Cycle Detection: Floyd's The Tortoise and the The Hare
  170. Cycle Detection: greedy algorithm
  171. D&D Character generator #1: attribute modifiers and spells
  172. D&D Character generator #2: psion power points
  173. D&D Character generator #3: carrying capacity
  174. Data mining #1
  175. Date Format Validation
  176. Deadlock Detection
  177. Debug the functions EASY
  178. Debugger
  179. Decimal to any Rational or Irrational Base Converter
  180. Decipher the sentence
  181. Decode the Morse code, advanced
  182. Decode the Morse code, for real
  183. Decompose a number
  184. Decreasing Numbers with N Digits
  185. Deficiently Abundant Perfect Amicable Numbers
  186. Democracy Representation
  187. denumerate string
  188. Department scheduler [simple]
  189. Derpcode Interpreter
  190. Design a Simple Automaton (Finite State Machine)
  191. Detecting Factions in Friend-Foe Networks
  192. Determine Results of Pole Vault Competition
  193. Devil's Sequence
  194. DevOps legacy roasting -> disco inferno -> burn baby burn
  195. Dice rolls threshold
  196. Diff That Poly!
  197. Diophantine Equation Solver
  198. Disease Spread
  199. Distance between two points
  200. Divide polynomial by polynomial
  201. Divisible by primes
  202. Divisor harmony
  203. Dobble
  204. Dobble: Identify the missing cards
  205. Dog recommendation system
  206. Dollar words
  207. Domino Tiling - 2 x N Board
  208. Domino Tiling - 3 x N Board
  209. Dota 2 Bots - Pudge's Meat Hook
  210. Double Even Magic Square
  211. Doubly Linked List
  212. Draw a Circle.
  213. Dropzone
  214. Dynamic Connectivity
  215. Easy Cyclist's Training
  216. Egg Drops
  217. Eight ways to iterate over table
  218. Elections: Weighted Average
  219. Elo rating - one game, one pair
  220. Endianness Conversion
  221. Endless String
  222. Enigeliisohe too Eniigeeliiisoohee Toroanisoliatooro
  223. Enumerable Magic #30 - Split that Array!
  224. Error Correction Codes
  225. Escape the Aliens
  226. Escape the maze
  227. Esolang Interpreters #1 - Introduction to Esolangs and My First Interpreter (MiniStringFuck)
  228. Esolang Interpreters #3 - Custom Paintf**k Interpreter
  229. Esolang: InfiniTick
  230. Esolang: Stick
  231. Esoteric Language: 'Poohbear' Interpreter
  232. Euclidean distance in n dimensions
  233. Euler method for numerical integration
  234. Euler Squares
  235. Evil Autocorrect Prank
  236. Exact p
  237. Exception Handling (with restrictions)
  238. Exclusive presentations
  239. Exercise in Summing
  240. Experimenting with a sequence of complex numbers
  241. Express number as sum of four squares
  242. Fabergé Easter Eggs crush test
  243. Family Relations
  244. Family Tree - Ancestors
  245. Fastest Code : Equal to 24
  246. Fat Fingers
  247. Feed Kahumolings!
  248. Fibonacci With a Broken Interpreter
  249. File Path Operations
  250. Fill in the gaps in my timesheet.
  251. Filtering Values For an Election
  252. Financing a purchase
  253. Find all possible number combos that sum to a number
  254. Find All The Unique Substrings
  255. Find amplitude of a binary tree
  256. Find Ends of Each Paths
  257. Find the Biggest Triangle
  258. Find the centre of a sphere
  259. Find the Counterfeit
  260. Find the files then read them
  261. Find the force of gravity between two objects
  262. Find the in-between point
  263. Find the lines!
  264. Find the Longest Increasing or Decreasing Combination in an Array
  265. Find the missed number
  266. Find the most adjacent integers of the same value in a grid
  267. Find the name of the lucky variable
  268. Find the Next Powers Higher than a Given Value With Given Constraints
  269. Find the random seed
  270. Find the sum of the roots of a quadratic equation
  271. Finding a Circulation
  272. Finish Guess the Number Game
  273. Finish NxN Array Tic-Tac-Toe Game
  274. First n Prime Numbers
  275. First-Class Function Factory
  276. Fix arithmetic progression
  277. Fix array sequence
  278. Fix the base conversion function!
  279. Fix the Bugs (Syntax) - My First Kata
  280. Fix the pipes
  281. Fix the robot and save the secret Mars base
  282. Fixed length palindromes
  283. Fixed-length integer partitions
  284. Fizz Buzz (with restrictions)
  285. Fizz Buzz Reloaded
  286. FizzBuzz++
  287. Flatten A Nested Dictionary That Contains Lists
  288. Float or Integer verifier
  289. Floating-point Approximation (III)
  290. Folding Tiles Solver
  291. Following the Paths of Numbers Through Prime Factorization
  292. Football Season
  293. Four Letter Words ~ Mutations
  294. Fractions class
  295. Fractions of a currency' smallest value
  296. Frogificator
  297. Fuel usage reporting
  298. Function Composition
  299. Function iteration
  300. Funnel Out A String
  301. Gambling Game: Choosing Order
  302. Game of Go
  303. Game of Thrones : Wildlings are coming!
  304. Generate Numbers From Digits #2
  305. Generic number class
  306. Geohashing
  307. Geometric Mean II
  308. Get Euchre Score
  309. Get recursion limit
  310. Get the Excel column title!
  311. Getting along with Bernoulli's numbers
  312. getting started #let's piay
  313. Getting the neighbors
  314. Give me data
  315. Gnomes and Hats: A Horror Story
  316. Golden Section Search
  317. GPS coordinate conversions - DD to DMS
  318. Grader
  319. Grid index
  320. Group prime numbers
  321. Grouped by commas
  322. Guess the (prime) number, digit by digit
  323. Guess the float #1
  324. Guess the list pattern #2
  325. Guess the list pattern #3
  326. Guess the list pattern #4
  327. Guess Who?
  328. guessing game server
  329. Gymbro's Unique Gym - Weight Calculator
  330. Hack the NSA
  331. Hackermann
  332. Hanoi Tower Array
  333. Happy Numbers. Another performance edition.
  334. Heartbeat Status Montor
  335. Help Green Lantern with his web site
  336. Help Mr. E
  337. Help Suzuki pack his coal basket!
  338. Helpers For a 3DGame I: Biggest Triangle in a Sphere
  339. Heroes of Might & Magic II: Chain Lightning
  340. Hidden pixels
  341. Hide a message in a deck of playing cards
  342. High score table
  343. Hofstadter Q
  344. How far away is it ?
  345. How good are you really?
  346. How long each order will take
  347. How many dots are covered
  348. How many eggs?
  349. How many feelings?
  350. HTML Complementary Color
  351. HTML Element Generator
  352. Hungarian Cardinal Numerals
  353. Hungarian Vowel Harmony (harder)
  354. Hypercube Lists
  355. I Liked the SQL Better...
  356. I'm already Tracer
  357. Image host filename generator
  358. Image Processing: Gaussian Blurring
  359. Imaginary Base Conversion
  360. Imperfect Fibonacci Rabbits
  361. Implement Classes by using Functions
  362. Implementing SHA-1
  363. Inertial Array
  364. Infinite continued fractions
  365. Insane Circular Limited Sums
  366. Insane Increasing or Decreasing Numbers
  367. Insane Tri-Bicolor Tiling
  368. Integer factorization: CFRAC basics
  369. Integer to string deciphering
  370. Integer triangles
  371. Integer Triangles I: Maximum Number of Integer Triangles with the Smallest Perimeter
  372. Interlaced Spiral Cipher
  373. Intro to Statistics - Part 1: A Five figure summary
  374. Intro to Statistics - Part 2: Boxplots
  375. Intro to Statistics - Part 3: Correlation Coefficients
  376. IntroToArt
  377. intTunes
  378. IPv4 Parser
  379. IRR Calculation - evaluation of profitability
  380. Is it a group? (Group theory, Abstract algebra)
  381. Is there a sequence re-occuring in the list
  382. Is this a good batch of stout? (Student's t test)
  383. Is this event within this time?
  384. Isogram Cipher
  385. Iterative Rotation Cipher
  386. Jacob's Weight Loss Program
  387. Javascript filter - 1
  388. Jimmy's Journey
  389. Job Matching #2
  390. Jobs
  391. Johnny the Poker Player - What is my equity?
  392. Joyful Transpiler
  393. Jumble words
  394. Jungerstein's Math Training Room: 4. O Pascal tree, how green are your leaves?
  395. Jungerstein's Math Training Room: 5. Cat back
  396. Kata 2019: Bonus Game I
  397. Kata 2019: Bonus Game II
  398. Kata Impossible I - The Impossible Lottery
  399. KISS - Keep It Simple Stupid
  400. Knapsack problem - the max value with the lists of elements
  401. Krazy King Blackjack
  402. Largest Numeric Palindrome
  403. Largest Power that Divides a Large Factorial
  404. Largest prime number containing n digit
  405. Last
  406. Last digits of N^2 == N
  407. Latin Squares
  408. Lattice Paths, But...?
  409. Lazily executing a function
  410. Lazy Init
  411. Leaderboard climbers
  412. Learning Remote Control
  413. Left$ and Right$
  414. Length Factorial Encryption
  415. Let's Play Darts: Beat The Power!
  416. Letterss of Natac
  417. Letterss of natac: build or buy
  418. Level Up!
  419. Lexographic sort with a twist
  420. Linked Lists - Front Back Split
  421. Linked Lists - Remove Duplicates
  422. Linked Lists - Shuffle Merge
  423. Linked Lists - Sorted Merge
  424. Linux history and ! command. Series#3 The !-n command
  425. Linux history and ! command. Series#4 The !string command
  426. Linux history and ! command. Series#5 The !?string command
  427. List of pairs instead of dictionary
  428. Little PL/SQL parser - get text literals
  429. Logic Detective
  430. Longest Consecutive Sequence of Squares
  431. Longest Palindromic Substring (Linear)
  432. Longest Strict Bouncy Subarray
  433. Looper
  434. Loose Change (Part 2)
  435. Ludic numbers
  436. Magic Zeckendorf
  437. Magritte - Golconda
  438. Mahjong - #1 Pure Hand
  439. Make a spiral
  440. Making Copies
  441. Manage the Robot Factory: Day 1
  442. Markings to White Triangles and How to Find Them
  443. Master your primes: sieve with memoization
  444. Mastermind
  445. matrix expanding
  446. Matrix Exponentiation
  447. Max Collatz Sequence Length
  448. Max number of people and year in a specific place
  449. Maximum 2d subarray sum
  450. Maximum and Minimum Numbers as a Result of all Possible Concatenations and Fulfilling Certain Constraints
  451. Maximum Area in Histogram
  452. Maximum Overkill
  453. Maze Exit
  454. Mean without outliers
  455. Memoized Log Cutting
  456. Message from Alien (Easy Version)
  457. Midpoint Sum
  458. Minesweeper
  459. Minimal Cost Binary Search Trees
  460. Minimal Squarewave PCM Synthesizer
  461. Minimum exact p
  462. Minimum number of taxis
  463. Minimum path in squares
  464. Minimum Ticket Cost
  465. Minimum Transactions
  466. Minimum unfairness of a list/array
  467. Mistaking a forest for a tree
  468. Molecule to atoms
  469. Mongodb ObjectID
  470. MONTE CARLO 3D
  471. Morse Encoding
  472. Most common first
  473. Most improved - Puzzles #4
  474. MTV Cribs
  475. Multi Poly Coordinates
  476. Multicast IP Address to MAC address mapping
  477. Multiply Two Numbers Without Integers
  478. Multiply without asterisk
  479. Multiplying Binomials
  480. Multirange iterator
  481. Multisize Nonogram Solver
  482. Musical Scales and Modes
  483. My smallest code interpreter (aka Brainf**k)
  484. My Very Own Python's Split Function
  485. Mysterious Letters
  486. N Linear
  487. n times 2 to the power of x without function or class method and return
  488. n-Bonacci Ratio
  489. N-centered Array
  490. N-Dimensional Vector Magnitude
  491. N00bify - English to n00b Translator
  492. Nearly Flatten a Messy Array
  493. Nerdle - The General Version
  494. New season, new league
  495. Next Higher Value # 1
  496. Next level string padding
  497. NIM the game
  498. No adjacent integers sequence generator
  499. No arithmetic progressions
  500. No musical :(
  501. No unknown variables!
  502. Northwest and Southeast corners
  503. nova polynomial 5. from roots
  504. Now that's a crib!
  505. Number Decoding
  506. Number of Digit d in m-based Number Converted to Base n
  507. Numbers Having Digits Occurring Only Once
  508. Numbers with Collatz Starting Patterns
  509. Nut Farm
  510. Nut Farm 2
  511. OCR Numbers
  512. Odd-squares traversal
  513. Odder than the rest
  514. Odder than the rest - 2
  515. Old Mobile Display
  516. One for His Nob: Scoring Cribbage Hands
  517. One Line Task: Diamond Creator Pro
  518. One line task: Is the King in check ?
  519. One Line Task: Palindrome String
  520. Only-Readable-Once list
  521. Operation Transformation
  522. Operator Insertion
  523. Optimal Taxi Fare
  524. Optimized Pathfinding Algorithm
  525. Oracle: Coin Method
  526. Ordering Beers in Poland
  527. Ordinal Numbers
  528. Packet Delivery -- Enforcing Constraints
  529. packing rectangles
  530. Palindrome integer composition
  531. Palindromic Expression
  532. Palindromization
  533. Pandigital Sequence
  534. Paperboy 2
  535. Papers, Please
  536. Parametric to Rectangular Equation
  537. Parentheses are loud !
  538. Parse bank account number
  539. Parse python terminal output
  540. Parse the log
  541. Partial Word Searching
  542. Password generator
  543. Password validator
  544. Path Finder #4: where are you?
  545. Perimeter Sum
  546. Permutation-free Strings
  547. Personalized brand list
  548. Physics - Mechanics - Atwood Machines in Series
  549. Pi approximation fractions
  550. Picking the best casino game
  551. Pig Sursurunga
  552. Pitches and Notes
  553. Plotting points on a grid.
  554. Pointless Farmer
  555. Points in the circle
  556. Points On A Line
  557. Polydivisible Numbers
  558. Polynomial Evaluation - Binomial Form
  559. Posix command
  560. Possibilities of throwing a coin n times
  561. Possible Triangles Formed with Available Iron Rods
  562. Power Laws
  563. Power tower modulo m
  564. Precise fractions pt. 1 - basics
  565. Prefill an Array
  566. Prime Ant - Crazy Version
  567. Prime factorization
  568. Prime number decompositions
  569. Principal Diagonal | VS | Secondary Diagonal
  570. Printing Array elements with Comma delimiters
  571. PRNG: Linear Congruential Generator
  572. Probabilities for Sums in Rolling Cubic Dice
  573. Probable Prime or Composite (Much bigger primes)
  574. Process Waterfowl Survey Data Results
  575. Processes
  576. Product Partitions II
  577. Program hangs!
  578. Progress of a challenge
  579. Progressive Spiral Number Branch
  580. Progressive Spiral Number Distance
  581. Progressive Spiral Number Position
  582. Projectile Motion
  583. Promenade Fractions (from BIO 2016)
  584. Propositional SAT Problem
  585. Propositional SAT Problem [Performance]
  586. Pythagorean Triplets
  587. Python's Dynamic Classes #1
  588. Python's Dynamic Classes #2
  589. Python's Dynamic Classes #3
  590. Quadratic Enumerator
  591. Quest: Kill ten rats!
  592. Queue Battle
  593. Radical Simplifier
  594. Radix Tree
  595. Ragbaby cipher
  596. Random Integers
  597. Range Extractor
  598. Range of Integers in an Unsorted String
  599. Range Parser
  600. Ranking Poker Hands
  601. Rational Zeros
  602. RDS (Radio Data System) Splash Text Concatenation
  603. Read a UPC/Barcode
  604. Read a UPC/Barcode Part 2
  605. Read the time
  606. Readability is King
  607. Recaman Sequence
  608. Recover a secret string from random triplets
  609. Recovering from a Disk Crash - Reverse Engineering Some Lost Code!
  610. Rectangle Cipher Puzzle
  611. Rectangular Subsets of Tiles in Square Grids (Fixed)
  612. Recursion puzzle
  613. Regex for a decimal number divisible by 4
  614. Regex for Gregorian date validation
  615. Regex to Match Significant Figures
  616. Regexp basics - parsing mana cost
  617. RegExp Fun #1 - When I miss few days of gym
  618. Regular expression for binary numbers divisible by 5
  619. Regular Expressions (groups): Splitting phone numbers into their separate parts.
  620. Relatively Prime Numbers
  621. Remember members decorator
  622. Retirement Planning as a Service
  623. Reverse a singly-linked list
  624. Reverse Inside Parentheses (Inside Parentheses)
  625. Reverse polish notation calculator
  626. Reverse Polish Notation solver (Easy)
  627. Reversi row rudiments
  628. riemann sums II (trapezoidal rule)
  629. Right Truncatable Harshad numbers
  630. RoboScript #2 - Implement the RS1 Specification
  631. RoboScript #3 - Implement the RS2 Specification
  632. RoboScript #4 - RS3 Patterns to the Rescue
  633. Roman numerals, Zeroes and Fractions
  634. ROT13 variant cipher
  635. Rotate Array (JS)
  636. Rotate Corners
  637. Rotated string
  638. Rotational energy levels
  639. Rotational state populations (the Boltzmann distribution)
  640. Rotten Oranges
  641. Round by 0.5 steps
  642. RPG dice roller
  643. RPS Knockout Tournament Winner
  644. Rubiks cube CFOP algo : Cross
  645. Rudimentary Pivot Table
  646. Rule 30
  647. Russian Peasant Multiplication
  648. Sales report
  649. Same Birthday Probability
  650. Sat Nav directions
  651. Save for retirement
  652. Schedulability Test
  653. School Class Arrangement
  654. Scraping: Get the Year a CodeWarrior Joined
  655. Searching for Bulls
  656. Seat Allocation Double Dutch
  657. Secret Agent Time Travel Calculations
  658. Secret knock
  659. Selective memory
  660. Self-closing Cookie Jar
  661. Semi-Thue Systems - The Word Problem [Part 1]
  662. Sentence to words
  663. Separate filename from extension
  664. Sequence generator
  665. Set Closure Generator
  666. Seventh JSON of a seventh JSON
  667. Shakespearean Tug of War
  668. Shallowest path across the river
  669. Shelve your trophies
  670. Shifted cycles
  671. Shorten IPv6 Address
  672. Shortest string
  673. Shortest string that contains all possible bigrams from set of characters
  674. Sierpinski triangle
  675. Simple Barcode Scanner
  676. Simple elevator
  677. Simple Encryption #2 - Index-Difference
  678. Simple Encryption #4 - Qwerty
  679. Simple Events
  680. Simple eviternity numbers
  681. Simple Finite State Machine Compiler
  682. Simple Fun #134: Fix Progression
  683. Simple Fun #139: Black And White
  684. Simple Fun #148: Exchange Sort
  685. Simple Fun #149: Next Day Of Week
  686. Simple Fun #150: Robot Transfer
  687. Simple Fun #153: Knight Rescue
  688. Simple Fun #167: Spreadsheet
  689. Simple Fun #170: Sum Groups
  690. Simple Fun #178: Faulty Odometer
  691. Simple Fun #188: Slogans
  692. Simple Fun #190: Folding Paper
  693. Simple Fun #201: Cards And Pero
  694. Simple Fun #26: Weak Numbers
  695. Simple Fun #283: Censor The Forbidden Words
  696. Simple Fun #299: Look And Say And Sum
  697. Simple Fun #335: Two Programmers And Gold
  698. Simple Fun #342: Buy Newspaper
  699. Simple Fun #387: Lonely Frog IV
  700. Simple Fun #55: Cyclic String
  701. Simple Fun #62: Draw Rectangle
  702. Simple Fun #89: Boxes Packing
  703. Simple Interactive Interpreter
  704. Simple max digit sum
  705. Simple maze
  706. Simple non-decreasing array
  707. Simple number divisibility
  708. Simple number triangle
  709. Simple palindrome game
  710. Simple parenthesis removal
  711. Simple Pig Latin
  712. Simple repeated words
  713. Simple Socket Client
  714. Simple string matching
  715. Simple Substitution Cipher Helper
  716. Simple Sum (with restrictions)
  717. Simple Web Framework #1: Create a basic router
  718. Simpler Interactive Interpreter
  719. Simplexer
  720. Simplifying multilinear polynomials
  721. Simulating Collective Behaviour with Linear Threshold Model
  722. Simultaneous Equations - Three Variables
  723. Single Word Pig Latin
  724. Sir , showMe yourID
  725. Slamming Lockers
  726. Sleigh Authentication
  727. So Easy: Charge time calculation
  728. So many kinds of numbers!
  729. Social Golfer Problem Validator
  730. Social Golfer Problem Validator V2
  731. Socialist distribution
  732. socket guessing game client
  733. Solve the Grid! Binary Toggling Puzzle
  734. Some Circles
  735. Some Tips For Quality Control I
  736. Sophie Germain primes
  737. Sort a massive list of strings (hard)
  738. Sort only integers in Nested List
  739. Sort the comments!
  740. Sortable Poker Hands
  741. Sortable Shapes
  742. Sorting Integers into a nested list
  743. Sorting Poker
  744. Sorting Time
  745. Space Invaders Underdog
  746. Spanish class help
  747. Speed Control
  748. Spelling Bee II
  749. SPF Russia
  750. Spidey Swings Across Town
  751. Spinning Rings - Fidget Spinner Edition
  752. Split string by multiple delimiters
  753. Split Without Loss
  754. Splitting the Workload (part II)
  755. Sports league table - help your local team!
  756. Spot the Differences
  757. Spreadsheet Cell Name Conversions
  758. Spy Agent
  759. Spy games - rebuild your decoder
  760. Squad number generator
  761. Square sums (simple)
  762. Stack Arithmetic Machine
  763. Stacked Balls - 3D (square base)
  764. Stop the loop after n seconds
  765. Strange roman numbers
  766. Streaky Patterns in Coin Flips
  767. String character frequency
  768. String counting
  769. String Pyramid
  770. String searching with wildcard
  771. String Shortener (shrink)
  772. String subpattern recognition II
  773. String subpattern recognition III
  774. String to integer conversion
  775. Strip Url Params
  776. Sub-array division
  777. Subsequence Product Sum
  778. Subset Sum Problem
  779. Sudoku Solver
  780. Sum and Multiply
  781. Sum of certain products
  782. Sum of certain products II
  783. Sum of dices
  784. Summing subsets in list
  785. Sums of Perfect Squares
  786. Sungka
  787. Supernatural
  788. Swap items in a dictionary
  789. Swap Row In Certain Columns of a Matrix
  790. Symbolic differentiation of prefix expressions
  791. T.T.T.#2: Equal to 24
  792. Task master
  793. Temperature converter
  794. Terrible Exception Handling
  795. Tetris Series #2 — Primitive Gameplay
  796. Texas Hold'em Hands
  797. The Chakitra's language
  798. The cross-stitch Kata
  799. The Enigma Machine - Part 2: A Rotor
  800. The Enigma Machine - Part 3: The Reflector
  801. The Enigma Machine - Part 4: A Rotor Part II
  802. The most asked question on CodeWars
  803. The Seven Bridges of Königsberg
  804. Tic-Tac-Toe Checker
  805. Time For Validation
  806. Traffic lights
  807. Train of dominoes
  808. Triangulate a konvex polygon
  809. Tug-o'-War
  810. Twice Their Age
  811. Two Sets of Equal Sum
  812. Understanding epidemic.
  813. Unicode Math
  814. Vanilla Neural Network from scratch
  815. Vanity Plates
  816. Watchmaker problems - watch hands issue
  817. Where am I again?
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