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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 lines!
  262. Find the most adjacent integers of the same value in a grid
  263. Find the name of the lucky variable
  264. Find the Next Powers Higher than a Given Value With Given Constraints
  265. Finding a Circulation
  266. Finish Guess the Number Game
  267. Finish NxN Array Tic-Tac-Toe Game
  268. First n Prime Numbers
  269. First-Class Function Factory
  270. Fix arithmetic progression
  271. Fix array sequence
  272. Fix the base conversion function!
  273. Fix the Bugs (Syntax) - My First Kata
  274. Fix the pipes
  275. Fix the robot and save the secret Mars base
  276. Fixed-length integer partitions
  277. Fizz Buzz Reloaded
  278. FizzBuzz++
  279. Flatten A Nested Dictionary That Contains Lists
  280. Float or Integer verifier
  281. Floating-point Approximation (III)
  282. Folding Tiles Solver
  283. Following the Paths of Numbers Through Prime Factorization
  284. Football Season
  285. Fractions class
  286. Fractions of a currency' smallest value
  287. Frogificator
  288. Fuel usage reporting
  289. Function Composition
  290. Function iteration
  291. Funnel Out A String
  292. Gambling Game: Choosing Order
  293. Game of Go
  294. Game of Thrones : Wildlings are coming!
  295. Geohashing
  296. Get recursion limit
  297. Get the Excel column title!
  298. getting started #let's piay
  299. Getting the neighbors
  300. Give me data
  301. Gnomes and Hats: A Horror Story
  302. Golden Section Search
  303. GPS coordinate conversions - DD to DMS
  304. Grid index
  305. Group prime numbers
  306. Grouped by commas
  307. Guess the (prime) number, digit by digit
  308. Guess the float #1
  309. Guess the list pattern #2
  310. Guess the list pattern #3
  311. Guess the list pattern #4
  312. Guess Who?
  313. guessing game server
  314. Gymbro's Unique Gym - Weight Calculator
  315. Hack the NSA
  316. Hackermann
  317. Hanoi Tower Array
  318. Happy Numbers. Another performance edition.
  319. Heartbeat Status Montor
  320. Help Green Lantern with his web site
  321. Help Mr. E
  322. Help Suzuki pack his coal basket!
  323. Helpers For a 3DGame I: Biggest Triangle in a Sphere
  324. Heroes of Might & Magic II: Chain Lightning
  325. Hidden pixels
  326. Hide a message in a deck of playing cards
  327. High score table
  328. How far away is it ?
  329. How good are you really?
  330. How long each order will take
  331. How many dots are covered
  332. HTML Complementary Color
  333. HTML Element Generator
  334. Hungarian Cardinal Numerals
  335. Hypercube Lists
  336. I Liked the SQL Better...
  337. I'm already Tracer
  338. Image host filename generator
  339. Image Processing: Gaussian Blurring
  340. Imaginary Base Conversion
  341. Imperfect Fibonacci Rabbits
  342. Implement Classes by using Functions
  343. Implementing SHA-1
  344. Inertial Array
  345. Infinite continued fractions
  346. Insane Circular Limited Sums
  347. Insane Increasing or Decreasing Numbers
  348. Insane Tri-Bicolor Tiling
  349. Integer factorization: CFRAC basics
  350. Integer to string deciphering
  351. Integer triangles
  352. Integer Triangles I: Maximum Number of Integer Triangles with the Smallest Perimeter
  353. Interlaced Spiral Cipher
  354. Intro to Statistics - Part 1: A Five figure summary
  355. Intro to Statistics - Part 2: Boxplots
  356. Intro to Statistics - Part 3: Correlation Coefficients
  357. IntroToArt
  358. intTunes
  359. IPv4 Parser
  360. IRR Calculation - evaluation of profitability
  361. Is it a group? (Group theory, Abstract algebra)
  362. Is there a sequence re-occuring in the list
  363. Is this a good batch of stout? (Student's t test)
  364. Is this event within this time?
  365. Isogram Cipher
  366. Iterative Rotation Cipher
  367. Jacob's Weight Loss Program
  368. Javascript filter - 1
  369. Jimmy's Journey
  370. Job Matching #2
  371. Jobs
  372. Johnny the Poker Player - What is my equity?
  373. Joyful Transpiler
  374. Jumble words
  375. Jungerstein's Math Training Room: 4. O Pascal tree, how green are your leaves?
  376. Jungerstein's Math Training Room: 5. Cat back
  377. Kata 2019: Bonus Game II
  378. Kata Impossible I - The Impossible Lottery
  379. KISS - Keep It Simple Stupid
  380. Knapsack problem - the max value with the lists of elements
  381. Krazy King Blackjack
  382. Largest Numeric Palindrome
  383. Largest Power that Divides a Large Factorial
  384. Largest prime number containing n digit
  385. Last digits of N^2 == N
  386. Latin Squares
  387. Lattice Paths, But...?
  388. Lazily executing a function
  389. Lazy Init
  390. Learning Remote Control
  391. Left$ and Right$
  392. Length Factorial Encryption
  393. Let's Play Darts: Beat The Power!
  394. Letterss of Natac
  395. Letterss of natac: build or buy
  396. Level Up!
  397. Lexographic sort with a twist
  398. Linked Lists - Front Back Split
  399. Linked Lists - Remove Duplicates
  400. Linked Lists - Shuffle Merge
  401. Linked Lists - Sorted Merge
  402. Linux history and ! command. Series#3 The !-n command
  403. Linux history and ! command. Series#4 The !string command
  404. Linux history and ! command. Series#5 The !?string command
  405. List of pairs instead of dictionary
  406. Little PL/SQL parser - get text literals
  407. Logic Detective
  408. Longest Consecutive Sequence of Squares
  409. Longest Palindromic Substring (Linear)
  410. Looper
  411. Loose Change (Part 2)
  412. Ludic numbers
  413. Magic Zeckendorf
  414. Magritte - Golconda
  415. Mahjong - #1 Pure Hand
  416. Making Copies
  417. Markings to White Triangles and How to Find Them
  418. Master your primes: sieve with memoization
  419. Mastermind
  420. matrix expanding
  421. Matrix Exponentiation
  422. Max Collatz Sequence Length
  423. Max number of people and year in a specific place
  424. Maximum 2d subarray sum
  425. Maximum Area in Histogram
  426. Maximum Overkill
  427. Maze Exit
  428. Mean without outliers
  429. Message from Alien (Easy Version)
  430. Midpoint Sum
  431. Minesweeper
  432. Minimal Cost Binary Search Trees
  433. Minimal Squarewave PCM Synthesizer
  434. Minimum exact p
  435. Minimum number of taxis
  436. Minimum path in squares
  437. Minimum Transactions
  438. Minimum unfairness of a list/array
  439. Mistaking a forest for a tree
  440. Molecule to atoms
  441. Mongodb ObjectID
  442. MONTE CARLO 3D
  443. Morse Encoding
  444. Most improved - Puzzles #4
  445. MTV Cribs
  446. Multi Poly Coordinates
  447. Multicast IP Address to MAC address mapping
  448. Multiply Two Numbers Without Integers
  449. Multiply without asterisk
  450. Multiplying Binomials
  451. Multisize Nonogram Solver
  452. Musical Scales and Modes
  453. My smallest code interpreter (aka Brainf**k)
  454. My Very Own Python's Split Function
  455. Mysterious Letters
  456. N Linear
  457. n-Bonacci Ratio
  458. N-centered Array
  459. N-Dimensional Vector Magnitude
  460. N00bify - English to n00b Translator
  461. Nerdle - The General Version
  462. New season, new league
  463. Next level string padding
  464. NIM the game
  465. No adjacent integers sequence generator
  466. No arithmetic progressions
  467. No unknown variables!
  468. Northwest and Southeast corners
  469. nova polynomial 5. from roots
  470. Now that's a crib!
  471. Number Decoding
  472. Numbers Having Digits Occurring Only Once
  473. Numbers with Collatz Starting Patterns
  474. Nut Farm
  475. Nut Farm 2
  476. OCR Numbers
  477. Odd-squares traversal
  478. Odder than the rest - 2
  479. Old Mobile Display
  480. One for His Nob: Scoring Cribbage Hands
  481. One Line Task: Diamond Creator Pro
  482. One line task: Is the King in check ?
  483. One Line Task: Palindrome String
  484. Only-Readable-Once list
  485. Operator Insertion
  486. Optimal Taxi Fare
  487. Optimized Pathfinding Algorithm
  488. Ordinal Numbers
  489. Packet Delivery -- Enforcing Constraints
  490. packing rectangles
  491. Palindrome integer composition
  492. Palindromic Expression
  493. Palindromization
  494. Pandigital Sequence
  495. Paperboy 2
  496. Papers, Please
  497. Parametric to Rectangular Equation
  498. Parentheses are loud !
  499. Parse python terminal output
  500. Parse the log
  501. Password generator
  502. Password validator
  503. Path Finder #4: where are you?
  504. Perimeter Sum
  505. Permutation-free Strings
  506. Physics - Mechanics - Atwood Machines in Series
  507. Pi approximation fractions
  508. Picking the best casino game
  509. Plotting points on a grid.
  510. Polydivisible Numbers
  511. Polynomial Evaluation - Binomial Form
  512. Posix command
  513. Possibilities of throwing a coin n times
  514. Possible Triangles Formed with Available Iron Rods
  515. Power Laws
  516. Power tower modulo m
  517. Precise fractions pt. 1 - basics
  518. Prefill an Array
  519. Prime Ant - Crazy Version
  520. Prime factorization
  521. Prime number decompositions
  522. Probabilities for Sums in Rolling Cubic Dice
  523. Probable Prime or Composite (Much bigger primes)
  524. Process Waterfowl Survey Data Results
  525. Processes
  526. Program hangs!
  527. Progress of a challenge
  528. Progressive Spiral Number Branch
  529. Projectile Motion
  530. Promenade Fractions (from BIO 2016)
  531. Propositional SAT Problem
  532. Propositional SAT Problem [Performance]
  533. Python's Dynamic Classes #1
  534. Python's Dynamic Classes #3
  535. Quadratic Enumerator
  536. Quest: Kill ten rats!
  537. Queue Battle
  538. Radical Simplifier
  539. Radix Tree
  540. Random Integers
  541. Range Extractor
  542. Range of Integers in an Unsorted String
  543. Range Parser
  544. Ranking Poker Hands
  545. Rational Zeros
  546. RDS (Radio Data System) Splash Text Concatenation
  547. Read a UPC/Barcode
  548. Read a UPC/Barcode Part 2
  549. Recaman Sequence
  550. Recover a secret string from random triplets
  551. Recovering from a Disk Crash - Reverse Engineering Some Lost Code!
  552. Rectangle Cipher Puzzle
  553. Rectangular Subsets of Tiles in Square Grids (Fixed)
  554. Recursion puzzle
  555. Regex for a decimal number divisible by 4
  556. Regex for Gregorian date validation
  557. Regex to Match Significant Figures
  558. Regexp basics - parsing mana cost
  559. RegExp Fun #1 - When I miss few days of gym
  560. Regular expression for binary numbers divisible by 5
  561. Regular Expressions (groups): Splitting phone numbers into their separate parts.
  562. Relatively Prime Numbers
  563. Remember members decorator
  564. Retirement Planning as a Service
  565. Reverse a singly-linked list
  566. Reverse Inside Parentheses (Inside Parentheses)
  567. Reverse polish notation calculator
  568. Reverse Polish Notation solver (Easy)
  569. Reversi row rudiments
  570. riemann sums II (trapezoidal rule)
  571. Right Truncatable Harshad numbers
  572. RoboScript #2 - Implement the RS1 Specification
  573. RoboScript #3 - Implement the RS2 Specification
  574. RoboScript #4 - RS3 Patterns to the Rescue
  575. Roman numerals, Zeroes and Fractions
  576. ROT13 variant cipher
  577. Rotate Array (JS)
  578. Rotate Corners
  579. Rotated string
  580. Rotational energy levels
  581. Rotational state populations (the Boltzmann distribution)
  582. Rotten Oranges
  583. Round by 0.5 steps
  584. RPG dice roller
  585. RPS Knockout Tournament Winner
  586. Rubiks cube CFOP algo : Cross
  587. Rudimentary Pivot Table
  588. Rule 30
  589. Russian Peasant Multiplication
  590. Sales report
  591. Same Birthday Probability
  592. Sat Nav directions
  593. Save for retirement
  594. Schedulability Test
  595. School Class Arrangement
  596. Searching for Bulls
  597. Seat Allocation Double Dutch
  598. Secret Agent Time Travel Calculations
  599. Secret knock
  600. Selective memory
  601. Self-closing Cookie Jar
  602. Semi-Thue Systems - The Word Problem [Part 1]
  603. Sentence to words
  604. Separate filename from extension
  605. Sequence generator
  606. Seventh JSON of a seventh JSON
  607. Shakespearean Tug of War
  608. Shallowest path across the river
  609. Shelve your trophies
  610. Shifted cycles
  611. Shorten IPv6 Address
  612. Shortest string
  613. Shortest string that contains all possible bigrams from set of characters
  614. Sierpinski triangle
  615. Simple Barcode Scanner
  616. Simple elevator
  617. Simple Encryption #2 - Index-Difference
  618. Simple Encryption #4 - Qwerty
  619. Simple Events
  620. Simple eviternity numbers
  621. Simple Finite State Machine Compiler
  622. Simple Fun #134: Fix Progression
  623. Simple Fun #139: Black And White
  624. Simple Fun #148: Exchange Sort
  625. Simple Fun #149: Next Day Of Week
  626. Simple Fun #153: Knight Rescue
  627. Simple Fun #167: Spreadsheet
  628. Simple Fun #170: Sum Groups
  629. Simple Fun #178: Faulty Odometer
  630. Simple Fun #188: Slogans
  631. Simple Fun #201: Cards And Pero
  632. Simple Fun #26: Weak Numbers
  633. Simple Fun #283: Censor The Forbidden Words
  634. Simple Fun #299: Look And Say And Sum
  635. Simple Fun #335: Two Programmers And Gold
  636. Simple Fun #342: Buy Newspaper
  637. Simple Fun #387: Lonely Frog IV
  638. Simple Fun #55: Cyclic String
  639. Simple Fun #62: Draw Rectangle
  640. Simple Fun #89: Boxes Packing
  641. Simple Interactive Interpreter
  642. Simple max digit sum
  643. Simple maze
  644. Simple non-decreasing array
  645. Simple number divisibility
  646. Simple palindrome game
  647. Simple parenthesis removal
  648. Simple Pig Latin
  649. Simple repeated words
  650. Simple Socket Client
  651. Simple string matching
  652. Simple Substitution Cipher Helper
  653. Simple Sum (with restrictions)
  654. Simple Web Framework #1: Create a basic router
  655. Simpler Interactive Interpreter
  656. Simplexer
  657. Simplifying multilinear polynomials
  658. Simulating Collective Behaviour with Linear Threshold Model
  659. Simultaneous Equations - Three Variables
  660. Single Word Pig Latin
  661. Sleigh Authentication
  662. So Easy: Charge time calculation
  663. So many kinds of numbers!
  664. Social Golfer Problem Validator
  665. Social Golfer Problem Validator V2
  666. Socialist distribution
  667. socket guessing game client
  668. Solve the Grid! Binary Toggling Puzzle
  669. Some Circles
  670. Some Tips For Quality Control I
  671. Sophie Germain primes
  672. Sort a massive list of strings (hard)
  673. Sort only integers in Nested List
  674. Sort the comments!
  675. Sortable Poker Hands
  676. Sortable Shapes
  677. Sorting Integers into a nested list
  678. Sorting Poker
  679. Sorting Time
  680. Space Invaders Underdog
  681. Spanish class help
  682. Speed Control
  683. Spelling Bee II
  684. SPF Russia
  685. Spidey Swings Across Town
  686. Spinning Rings - Fidget Spinner Edition
  687. Split string by multiple delimiters
  688. Split Without Loss
  689. Splitting the Workload (part II)
  690. Sports league table - help your local team!
  691. Spot the Differences
  692. Spreadsheet Cell Name Conversions
  693. Spy Agent
  694. Spy games - rebuild your decoder
  695. Squad number generator
  696. Square sums (simple)
  697. Stack Arithmetic Machine
  698. Stacked Balls - 3D (square base)
  699. Stop the loop after n seconds
  700. Strange roman numbers
  701. Streaky Patterns in Coin Flips
  702. String character frequency
  703. String counting
  704. String Pyramid
  705. String searching with wildcard
  706. String Shortener (shrink)
  707. String subpattern recognition II
  708. String subpattern recognition III
  709. String to integer conversion
  710. Strip Url Params
  711. Sub-array division
  712. Subsequence Product Sum
  713. Subset Sum Problem
  714. Sudoku Solver
  715. Sum and Multiply
  716. Sum of certain products
  717. Sum of certain products II
  718. Sum of dices
  719. Summing subsets in list
  720. Sums of Perfect Squares
  721. Sungka
  722. Supernatural
  723. Swap items in a dictionary
  724. Swap Row In Certain Columns of a Matrix
  725. Symbolic differentiation of prefix expressions
  726. T.T.T.#2: Equal to 24
  727. Task master
  728. Temperature converter
  729. Terrible Exception Handling
  730. Tetris Series #2 — Primitive Gameplay
  731. Texas Hold'em Hands
  732. The Chakitra's language
  733. The cross-stitch Kata
  734. The Enigma Machine - Part 2: A Rotor
  735. The Enigma Machine - Part 3: The Reflector
  736. The Enigma Machine - Part 4: A Rotor Part II
  737. The most asked question on CodeWars
  738. The Seven Bridges of Königsberg
  739. Tic-Tac-Toe Checker
  740. Time For Validation
  741. Traffic lights
  742. Train of dominoes
  743. Triangulate a konvex polygon
  744. Tug-o'-War
  745. Twice Their Age
  746. Two Sets of Equal Sum
  747. Understanding epidemic.
  748. Unicode Math
  749. Vanilla Neural Network from scratch
  750. Vanity Plates
  751. Watchmaker problems - watch hands issue
  752. Where am I again?
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