36. Codewars katas

Codewars es una comunidad educativa de programación. En la plataforma, los desarrolladores de software participan en desafíos de programación conocidos como katas. Estos ejercicios entrenan un rango amplio de habilidades y se completan dentro de un ambiente de desarrollo integrado en línea, en el que los usuarios tienen la posibilidad de ganar rangos y honor.

Codewars Katas 8kyu

Katas de nivel 8. Dificultad muy fácil.

1. Multiply
2. Even or Odd
3. Convert a Number to a String!
4. Opposite number
5. Reversed Strings
6. Return Negative
7. Convert boolean values to strings 'Yes' or 'No'.
8. Sum of positive
9. String repeat
10. Remove First and Last Character
11. Square(n) Sum
12. Find the smallest integer in the array
13. Grasshopper - Summation
14. Function 1 - hello world
15. Convert a String to a Number!
16. Remove String Spaces
17. Counting sheep...
18. You Can't Code Under Pressure #1
19. Returning Strings
20. Convert a Boolean to a String
21. Keep Hydrated!
22. Basic Mathematical Operations
23. Century From Year
24. Convert number to reversed array of digits
25. Beginner - Lost Without a Map
26. Beginner Series #2 Clock
27. Opposites Attract
28. Beginner Series #1 School Paperwork
29. Abbreviate a Two Word Name
30. Simple multiplication
31. Sum Arrays
32. MakeUpperCase
33. A Needle in the Haystack
34. Are You Playing Banjo?
35. Invert values
36. Calculate average
37. Is he gonna survive?
38. Count of positives / sum of negatives
39. Beginner - Reduce but Grow
40. How good are you really?
41. Sentence Smash
42. Calculate BMI
43. Fake Binary
44. Find Maximum and Minimum Values of a List
45. You only need one - Beginner
46. DNA to RNA Conversion
47. Will you make it?
48. Convert a string to an array
49. Reversed sequence
50. Is n divisible by x and y?
51. Count by X
52. If you can't sleep, just count sheep!!
53. Rock Paper Scissors!
54. Grasshopper - Personalized Message
55. Jenny's secret message
56. Quarter of the year
57. Transportation on vacation
58. Grasshopper - Grade book
59. Volume of a Cuboid
60. Remove exclamation marks
61. Third Angle of a Triangle
62. Total amount of points
63. Area or Perimeter
64. Thinkful - Logic Drills: Traffic light
65. L1: Set Alarm
66. Sum Mixed Array
67. Grasshopper - Messi goals function
68. Sum without highest and lowest number
69. Double Char
70. Get the mean of an array
71. Reversed Words
72. The Feast of Many Beasts
73. Array plus array
74. Parse nice int from char problem
75. Grasshopper - Check for factor
76. Beginner Series #4 Cockroach
77. Switch it Up!
78. Function 2 - squaring an argument
79. Twice as old
80. Keep up the hoop
81. Get Planet Name By ID
82. Removing Elements
83. Will there be enough space?
84. Count the Monkeys!
85. Find the first non-consecutive number
86. Grasshopper - Terminal game move function
87. Grasshopper - Debug sayHello
88. What is between?
89. Is it even?
90. Is the string uppercase?
91. All Star Code Challenge #18
92. Cat years, Dog years
93. altERnaTIng cAsE <=> ALTerNAtiNG CaSe
94. Do I get a bonus?
95. Powers of 2
96. Correct the mistakes of the character recognition software
97. Is it a palindrome?
98. Student's Final Grade
99. Expressions Matter
100. Sum The Strings
101. Difference of Volumes of Cuboids
102. Grasshopper - Messi Goals
103. Welcome!
104. Reverse List Order
105. I love you, a little , a lot, passionately ... not at all
106. Basic variable assignment
107. Count Odd Numbers below n
108. Sort and Star
109. Unfinished Loop - Bug Fixing #1
110. My head is at the wrong end!
111. Find Multiples of a Number
112. Drink about
113. Short Long Short
114. Vowel remover
115. Filter out the geese
116. What's the real floor?
117. Capitalization and Mutability
118. get character from ASCII Value
119. Grasshopper - If/else syntax debug
120. Find numbers which are divisible by given number
121. Name Shuffler
122. Stringy Strings
123. How many lightsabers do you own?
124. Exclusive &quot;or&quot; (xor) Logical Operator
125. Training JS #7: if..else and ternary operator
126. Plural
127. Lario and Muigi Pipe Problem
128. Grasshopper - Basic Function Fixer
129. Multiplication table for number
130. Regular Ball Super Ball
131. Get Nth Even Number
132. Merge two sorted arrays into one
133. Super Duper Easy
134. 5 without numbers !!
135. A wolf in sheep's clothing
136. Gravity Flip
137. Remove duplicates from list
138. To square(root) or not to square(root)
139. Determine offspring sex based on genes XX and XY chromosomes
140. The Wide-Mouthed frog!
141. Convert to Binary
142. Add Length
143. Well of Ideas - Easy Version
144. The 'if' function
145. Bin to Decimal
146. FIXME: Replace all dots
147. Hello, Name or World!
148. Holiday VIII - Duty Free
149. Grasshopper - Terminal game combat function
150. Hex to Decimal
151. Grasshopper - Function syntax debugging
152. No zeros for heros
153. Exclamation marks series #1: Remove an exclamation mark from the end of string
154. Welcome to the City
155. Enumerable Magic #25 - Take the First N Elements
156. Exclamation marks series #11: Replace all vowel to exclamation mark in the sentence
157. Is this my tail?
158. Find the Remainder
159. Find the position!
160. Surface Area and Volume of a Box
161. Alan Partridge II - Apple Turnover
162. Generate range of integers
163. 101 Dalmatians - squash the bugs, not the dogs!
164. Grasshopper - Debug
165. Price of Mangoes
166. Printing Array elements with Comma delimiters
167. Grasshopper - Array Mean
168. Reversing Words in a String
169. Remove First and Last Character Part Two
170. Sum of differences in array
171. Dollars and Cents
172. Pillars
173. String cleaning
174. Find out whether the shape is a cube
175. Simple validation of a username with regex
176. Enumerable Magic - Does My List Include This?
177. Check same case
178. Return to Sanity
179. Simple Fun #1: Seats in Theater
180. Sum of Multiples
181. Swap Values
182. Multiple of index
183. Sleigh Authentication
184. Take the Derivative
185. Find Nearest square number
186. Kata Example Twist
187. L1: Bartender, drinks!
188. How old will I be in 2099?
189. Basic Training: Add item to an Array
190. Return the day
191. String Templates - Bug Fixing #5
192. Triple Trouble
193. Never visit a . . . !?
194. USD => CNY
195. Regex count lowercase letters
196. Area of a Square
197. Formatting decimal places #0
198. How many stairs will Suzuki climb in 20 years?
199. OOP: Object Oriented Piracy
200. Color Ghost
201. Name on billboard
202. Define a card suit
203. Miles per gallon to kilometers per liter
204. Incorrect division method
205. Holiday VI - Shark Pontoon
206. Do you speak &quot;English&quot;?
207. Grasshopper - Combine strings
208. No Loops 2 - You only need one
209. Basic subclasses - Adam and Eve
210. Remove the time
211. Exclamation marks series #2: Remove all exclamation marks from the end of sentence
212. SpeedCode #2 - Array Madness
213. Classic Hello World
214. Regexp Basics - is it a digit?
215. Find the Difference in Age between Oldest and Youngest Family Members
216. The falling speed of petals
217. Fundamentals: Return
218. Is it a number?
219. Fix your code before the garden dies!
220. CSV representation of array
221. Classy Classes
222. Contamination #1 -String-
223. Pythagorean Triple
224. Smallest unused ID
225. Leonardo Dicaprio and Oscars
226. Exclamation marks series #6: Remove n exclamation marks in the sentence from left to right
227. get ascii value of character
228. Exclamation marks series #4: Remove all exclamation marks from sentence but ensure a exclamation mark at the end of string
229. A Strange Trip to the Market
230. Closest elevator
231. Compare within margin
232. Tip Calculator
233. Quadrants
234. Geometry Basics: Distance between points in 2D
235. Who is going to pay for the wall?
236. Chuck Norris VII - True or False? (Beginner)
237. BASIC: Making Six Toast.
238. Are arrow functions odd?
239. simple calculator
240. Collatz Conjecture (3n+1)
241. Is there a vowel in there?
242. Unexpected parsing
243. Thinkful - Number Drills: Blue and red marbles
244. Find the Integral
245. ASCII Total
246. Did she say hallo?
247. For UFC Fans (Total Beginners): Conor McGregor vs George Saint Pierre
248. Duck Duck Goose
249. validate code with simple regex
250. Who ate the cookie?
251. Template Strings
252. Quadratic Coefficients Solver
253. Multiply the number
254. Localize The Barycenter of a Triangle
255. Switch/Case - Bug Fixing #6
256. Wilson primes
257. Parse float
258. Get number from string
259. Count the number of cubes with paint on
260. Power
261. Grader
262. 8kyu interpreters: HQ9+
263. Is your period late?
264. Enumerable Magic #1 - True for All?
265. Pirates!! Are the Cannons ready!??
266. Classy Extentions
267. Are they opposite?
268. Barking mad
269. UEFA EURO 2016
270. Draw stairs
271. Ensure question
272. Training JS #18: Methods of String object--concat() split() and its good friend join()
273. For Twins: 2. Math operations
274. NBA full 48 minutes average
275. Online RPG: player to qualifying stage?
276. pick a set of first elements
277. Find the Slope
278. Fix the Bugs (Syntax) - My First Kata
279. Fuel Calculator: Total Cost
280. Freudian translator
281. Grasshopper - Terminal Game #1
282. Is the date today
283. How do I compare numbers?
284. Name Your Python!
285. Return Two Highest Values in List
286. Calculate Price Excluding VAT
287. Safen User Input Part I - htmlspecialchars
288. Crash Override
289. Evil or Odious
290. Merging sorted integer arrays (without duplicates)
291. Finish Guess the Number Game
292. Polish alphabet
293. Semi-Optional
294. Logical calculator
295. Grasshopper - Bug Squashing
296. Points of Reflection
297. Job Matching #1
298. Grasshopper - Create the rooms
299. Simple Fun #261: Whose Move
300. Age Range Compatibility Equation
301. Be Concise I - The Ternary Operator
302. Enumerable Magic #20 - Cascading Subsets
303. Playing with cubes II
304. Be Concise IV - Index of an element in an array
305. easy logs
306. How much water do I need?
307. Heads and Legs
308. Grasshopper - Terminal Game Turn Function
309. For Twins: 1. Types
310. Thinkful - Dictionary drills: Order filler
311. Neutralisation
312. Floating point comparison
313. Days in the year
314. Sort My Textbooks
315. Are there any arrows left?
316. What's up next?
317. Add new item (collections are passed by reference)
318. Filtering even numbers (Bug Fixes)
319. Aspect Ratio Cropping - Part 1
320. Total pressure calculation
321. Flick Switch
322. Geometry Basics: Circle Circumference in 2D
323. Simple Fun #352: Reagent Formula
324. Fix the loop!
325. Training JS #32: methods of Math---round() ceil() and floor()
326. Invalid Login - Bug Fixing #11
327. Geometry Basics: Circle Area in 2D
328. Generate user links
329. Byte me!
330. Greek Sort
331. Pole Vault Starting Marks
332. Up and down, the string grows
333. Find the force of gravity between two objects
334. Enumerable Magic #30 - Split that Array!
335. Circles in Polygons
336. Vexing Vanishing Values
337. A Letter's Best Friend
338. Collinearity

Codewars Katas 7kyu

Katas de nivel 7. Dificultad fácil.

1. Vowel Count
2. Disemvowel Trolls
3. Square Every Digit
4. Highest and Lowest
5. You're a square!
6. List Filtering
7. Descending Order
8. Get the Middle Character
9. Isograms
10. Exes and Ohs
11. Jaden Casing Strings
12. Shortest Word
13. Mumbling
14. Complementary DNA
15. Sum of two lowest positive integers
16. String ends with?
17. Beginner Series #3 Sum of Numbers
18. Credit Card Mask
19. Friend or Foe?
20. Binary Addition
21. Is this a triangle?
22. Regex validate PIN code
23. Two to One
24. Sum of odd numbers
25. Categorize New Member
26. Find the next perfect square!
27. Growth of a Population
28. Printer Errors
29. Ones and Zeros
30. Number of People in the Bus
31. Reverse words
32. Odd or Even?
33. The highest profit wins!
34. Sum of the first nth term of Series
35. Find the divisors!
36. Remove the minimum
37. Testing 1-2-3
38. Count the divisors of a number
39. Find the stray number
40. Sort Numbers
41. Breaking chocolate problem
42. Make a function that does arithmetic!
43. Count the Digit
44. Anagram Detection
45. Sum of a sequence
46. Sort array by string length
47. Money, Money, Money
48. Remove anchor from URL
49. Factorial
50. Don't give me five!
51. Find the capitals
52. Small enough? - Beginner
53. Leap Years
54. Summing a number's digits
55. Sum of angles
56. Find the middle element
57. Two Oldest Ages
58. Simple Fun #176: Reverse Letter
59. Round up to the next multiple of 5
60. Maximum Multiple
61. The Coupon Code
62. No oddities here
63. Alternate capitalization
64. Largest 5 digit number in a series
65. Fix string case
66. Triangular Treasure
67. Maximum Length Difference
68. Are the numbers in order?
69. Check the exam
70. Number of Decimal Digits
71. Flatten and sort an array
72. Two fighters, one winner.
73. Deodorant Evaporator
74. JavaScript Array Filter
75. Form The Minimum
76. Fizz Buzz
77. Factorial
78. Sum of Minimums!
79. Power of two
80. Predict your age!
81. Row Weights
82. Greet Me
83. Sum of numbers from 0 to N
84. Remove duplicate words
85. Sum of Cubes
86. Sorted? yes? no? how?
87. Find the vowels
88. Greatest common divisor
89. Sort the Gift Code
90. Love vs friendship
91. Bumps in the Road
92. Digits explosion
93. Functional Addition
94. Head, Tail, Init and Last
95. Alphabet war
96. Largest pair sum in array
97. Build a square
98. Maximum Product
99. Even numbers in an array
100. Switcheroo
101. Filter the number
102. Sum of Triangular Numbers
103. My Language Skills
104. Simple beads count
105. Boiled Eggs
106. Sort arrays - 1
107. Unlucky Days
108. Minimize Sum Of Array (Array Series #1)
109. Speed Control
110. Odd-Even String Sort
111. Parts of a list
112. Maximum Triplet Sum (Array Series #7)
113. Higher-Order Functions Series - Count the number of JavaScript developers coming from Europe
114. Most digits
115. Over The Road
116. Currying functions: multiply all elements in an array
117. Palindrome chain length
118. Smallest value of an array
119. Simple remove duplicates
120. 16+18=214
121. Divide and Conquer
122. Ordered Count of Characters
123. Moves in squared strings (I)
124. Building Strings From a Hash
125. Convert an array of strings to array of numbers
126. Cats and shelves
127. Number Of Occurrences
128. Reverse a Number
129. Largest Square Inside A Circle
130. Perimeter sequence
131. Alphabet symmetry
132. Halving Sum
133. Flatten
134. Unpacking Arguments
135. A Rule of Divisibility by 7
136. Digitize
137. Sum even numbers
138. Basic Sequence Practice
139. Simple Fun #74: Growing Plant
140. Area of a Circle
141. Going to the cinema
142. max diff - easy
143. Find the nth Digit of a Number
144. Largest Elements
145. All unique
146. Sum of all arguments
147. Coding Meetup #2 - Higher-Order Functions Series - Greet developers
148. V A P O R C O D E
149. Alphabetical Addition
150. shorter concat [reverse longer]
151. Refactored Greeting
152. Char Code Calculation
153. Substituting Variables Into Strings: Padded Numbers
154. Nth Smallest Element (Array Series #4)
155. Nickname Generator
156. Incrementer
157. Strong Number (Special Numbers Series #2)
158. Building blocks
159. Simple string characters
160. Find Count of Most Frequent Item in an Array
161. Alternate case
162. Coloured Triangles
163. Balanced Number (Special Numbers Series #1 )
164. Vowel one
165. Automorphic Number (Special Numbers Series #6)
166. Drying Potatoes
167. Return the Missing Element
168. Averages of numbers
169. Remove All The Marked Elements of a List
170. Spacify
171. Complete The Pattern #1
172. Sum of array singles
173. Simple consecutive pairs
174. esreveR
175. Tidy Number (Special Numbers Series #9)
176. Sort Out The Men From Boys
177. Coding Meetup #3 - Higher-Order Functions Series - Is Ruby coming?
178. Sum of Odd Cubed Numbers
179. Who is the killer?
180. FIXME: Get Full Name
181. Last Survivor
182. All Inclusive?
183. Basic Calculator
184. How many arguments
185. Product Of Maximums Of Array (Array Series #2)
186. getNames()
187. Debug Sum of Digits of a Number
188. Rotate for a Max
189. Folding your way to the moon
190. Sum of integers in string
191. Simple Fun #152: Invite More Women?
192. Caffeine Script
193. Disarium Number (Special Numbers Series #3)
194. Coding Meetup #4 - Higher-Order Functions Series - Find the first Python developer
195. Collatz Conjecture Length
196. Lost number in number sequence
197. Sort by Last Char
198. Looking for a benefactor
199. Find The Duplicated Number in a Consecutive Unsorted List
200. Regexp Basics - is it a vowel?
201. Longest vowel chain
202. Colour Association
203. Squares sequence
204. Special Number (Special Numbers Series #5)
205. Elapsed Seconds
206. Return the first M multiples of N
207. Indexed capitalization
208. Array element parity
209. Make them bark!
210. Combine objects
211. Cat and Mouse - Easy Version
212. Product Array (Array Series #5)
213. Heron's formula
214. Insert dashes
215. How many are smaller than me?
216. Convert a linked list to a string
217. Find the missing element between two arrays
218. Javascript filter - 1
219. Get decimal part of the given number
220. The wheat/rice and chessboard problem
221. Last
222. The old switcheroo
223. Jumping Number (Special Numbers Series #4)
224. Running out of space
225. Regexp Basics - is it a letter?
226. Count consonants
227. Coding Meetup #6 - Higher-Order Functions Series - Can they code in the same language?
228. The Office I - Outed
229. ToLeetSpeak
230. Basic JS - Calculating averages
231. Split The Bill
232. Making Copies
233. Array Leaders (Array Series #3)
234. Find the Capitals
235. Return substring instance count
236. Is n divisible by (...)?
237. Complete The Pattern #2
238. Coding Meetup #5 - Higher-Order Functions Series - Prepare the count of languages
239. Changing letters
240. Word values
241. Nth power rules them all!
242. Easy mathematical callback
243. Between Extremes
244. Remove consecutive duplicate words
245. Arithmetic Sequence!
246. Split In Parts
247. Birthday I - Cake
248. Discover The Original Price
249. Count all the sheep on farm in the heights of New Zealand
250. Easy wallpaper
251. Return the closest number multiple of 10
252. Person Class Bug
253. By 3, or not by 3? That is the question . . .
254. Chain me
255. Digital cypher
256. Help the Fruit Guy
257. Numbers in strings
258. Maximum Gap (Array Series #4)
259. String Reordering
260. Vampire Numbers
261. Spoonerize Me
262. Elevator Distance
263. Average Scores
264. Length and two values.
265. All Star Code Challenge #22
266. Unique string characters
267. Valid Parentheses
268. Reverse list
269. Numbers to Letters
270. Valid Spacing
271. Return a string's even characters.
272. Selective fear of numbers
273. Responsible Drinking
274. Formatting decimal places #1
275. Monotone travel
276. Area of an arrow
277. Fibonacci
278. Evens and Odds
279. Simple Fun #2: Circle of Numbers
280. Absent vowel
281. Drone Fly-By
282. Compare Strings by Sum of Chars
283. Sum a list but ignore any duplicates
284. ATM
285. Find Screen Size
286. See You Next Happy Year
287. Two numbers are positive
288. Holiday III - Fire on the boat
289. Extra Perfect Numbers (Special Numbers Series #7)
290. Bingo ( Or Not )
291. Bubblesort Once
292. Return String of First Characters
293. Computer problem series #1: Fill the Hard Disk Drive
294. The Office IV - Find a Meeting Room
295. Milk and Cookies for Santa
296. Nice Array
297. The fusc function -- Part 1
298. makeBackronym
299. Search for letters
300. Evens times last
301. Letterbox Paint-Squad
302. Partial Word Searching
303. Dot Calculator
304. Previous multiple of three
305. Float Precision
306. Say hello!
307. First-Class Function Factory
308. Basic Math (Add or Subtract)
309. Minimum Steps (Array Series #6)
310. Filter Long Words
311. Simple Fun #37: House Numbers Sum
312. Find min and max
313. Trimming a string
314. Powers of i
315. Covfefe
316. Band name generator
317. Reverse the bits in an integer
318. Which color is the brightest?
319. SevenAte9
320. Even or Odd - Which is Greater?
321. The Office II - Boredom Score
322. Filter unused digits
323. Especially Joyful Numbers
324. Thinking &amp; Testing: A and B?
325. String Merge!
326. Credit card issuer checking
327. Pluck
328. Linked Lists - Push &amp; BuildOneTwoThree
329. Help Suzuki rake his garden!
330. Arithmetic progression
331. How many consecutive numbers are needed?
332. Find the Missing Number
333. Number-Star ladder
334. Check for prime numbers
335. Thinkful - String Drills: Quotable
336. Coding Meetup #11 - Higher-Order Functions Series - Find the average age
337. Plus - minus - plus - plus - ... - Count
338. Scaling Squared Strings
339. Consecutive items
340. Coding Meetup #12 - Higher-Order Functions Series - Find GitHub admins
341. Interactive Dictionary
342. Candy problem
343. Character Counter
344. Interview Question (easy)
345. Linked Lists - Get Nth Node
346. Counting in the Amazon
347. Determine if the poker hand is flush
348. Ninja vs Samurai: Strike
349. Return a sorted list of objects
350. Arithmetic List!
351. Sorting Dictionaries
352. LinkedList -> Array
353. For the sake of argument
354. last digits of a number
355. Password maker
356. Correct the time-string
357. Stanton measure
358. Dictionary from two lists
359. Find the index of the second occurrence of a letter in a string
360. Difference Of Squares
361. Convert Hash To An Array
362. Help Bob count letters and digits.
363. How Green Is My Valley?
364. Naughty or Nice?
365. Simple string reversal
366. Numbers with this digit inside
367. Find sum of top-left to bottom-right diagonals
368. Who's Online?
369. Coding Meetup #14 - Higher-Order Functions Series - Order the food
370. Find all occurrences of an element in an array
371. Sort Santa's Reindeer
372. Find Duplicates
373. Pandemia 🌡️
374. Waiting room
375. Find Your Villain Name
376. Consecutive letters
377. Substring fun
378. Eliminate the intruders! Bit manipulation
379. Frequency sequence
380. L2: Triple X
381. Password Hashes
382. Inspiring Strings
383. Fix My Phone Numbers!
384. What a &quot;Classy&quot; Song
385. Double Sort
386. Recursion 101
387. Ghostbusters (whitespace removal)
388. Invisible cubes
389. All Star Code Challenge #3
390. Multiples!
391. Move 10
392. Double Every Other
393. Sum of a Beach
394. Is It Negative Zero (-0)?
395. Nth Root of a Number
396. Exclamation marks series #13: Count the number of exclamation marks and question marks, return the product
397. Password validator
398. The Poet And The Pendulum
399. Snail crawls up
400. Retrieve array value by index with default
401. Alphabetically ordered
402. 254 shades of grey
403. Power of 4
404. Hells Kitchen
405. Number of Rectangles in a Grid
406. Max-min arrays
407. String matchup
408. Replace every nth
409. What dominates your array?
410. Scrolling Text
411. Multiply Word in String
412. Tail Swap
413. Filter Coffee
414. Find the Squares
415. The reject() function
416. Check three and two
417. Number Pairs
418. Broken sequence
419. Four/Seven
420. Are they square?
421. Keep the Order
422. Hello World - Without Strings
423. Slope of a Line
424. Initialize my name
425. Keypad horror
426. Enumerable Magic #5- True for Just One?
427. Clean up after your dog
428. Populate hash with array keys and default value
429. C.Wars
430. The Office III - Broken Photocopier
431. Converting integer to currency format
432. Battle of the characters (Easy)
433. Reverser
434. String to integer conversion
435. Sum - Square Even, Root Odd
436. Numbers to Objects
437. What's my golf score?
438. Is every value in the array an array?

Codewars Katas 6kyu

Katas de nivel 6. Dificultad moderada.

1. Multiples of 3 or 5
2. Who likes it?
3. Create Phone Number
4. Find the odd int
5. Array.diff
6. Sum of Digits / Digital Root
7. Stop gninnipS My sdroW!
8. Bit Counting
9. Counting Duplicates
10. Duplicate Encoder
11. Find The Parity Outlier
12. Replace With Alphabet Position
13. Persistent Bugger.
14. Take a Ten Minutes Walk
15. Convert string to camel case
16. Unique In Order
17. Detect Pangram
18. Does my number look big in this?
19. Your order, please
20. Tribonacci Sequence
21. Split Strings
22. Find the unique number
23. Playing with digits
24. Equal Sides Of An Array
25. Decode the Morse code
26. Is a number prime?
27. Break camelCase
28. Sort the odd
29. Are they the &quot;same&quot;?
30. Build Tower
31. Find the missing letter
32. Highest Scoring Word
33. Count the smiley faces!
34. Delete occurrences of an element if it occurs more than n times
35. Bouncing Balls
36. Count characters in your string
37. Build a pile of Cubes
38. Which are in?
39. Consecutive strings
40. Write Number in Expanded Form
41. Two Sum
42. Valid Braces
43. Mexican Wave
44. Take a Number And Sum Its Digits Raised To The Consecutive Powers And ....¡Eureka!!
45. Roman Numerals Encoder
46. The Supermarket Queue
47. Roman Numerals Decoder
48. WeIrD StRiNg CaSe
49. CamelCase Method
50. IP Validation
51. Title Case
52. Multiplication table
53. Give me a Diamond
54. Make the Deadfish Swim
55. Rectangle into Squares
56. Tortoise racing
57. Help the bookseller !
58. Simple Encryption #1 - Alternating Split
59. Good vs Evil
60. Sums of Parts
61. Reverse or rotate?
62. Data Reverse
63. Encrypt this!
64. N-th Fibonacci
65. Find the missing term in an Arithmetic Progression
66. Meeting
67. Valid Phone Number
68. The Vowel Code
69. Buying a car
70. Backspaces in string
71. Consonant value
72. Pyramid Array
73. Length of missing array
74. Highest Rank Number in an Array
75. Validate Credit Card Number
76. A Rule of Divisibility by 13
77. Pair of gloves
78. Triple trouble
79. Dashatize it
80. Function Composition
81. Handshake problem
82. Multi-tap Keypad Text Entry on an Old Mobile Phone
83. Fibonacci, Tribonacci and friends
84. Matrix Addition
85. Array Deep Count
86. Prefill an Array
87. Kebabize
88. Don't rely on luck.
89. Word a10n (abbreviation)
90. Pascal's Triangle
91. Street Fighter 2 - Character Selection
92. Lottery Ticket
93. Playing with passphrases
94. Character with longest consecutive repetition
95. Reverse polish notation calculator
96. +1 Array
97. Fold an array
98. If you can read this...
99. longest_palindrome
100. Base Conversion
101. IPv4 to int32
102. Reverse every other word in the string
103. Statistics for an Athletic Association
104. Run-length encoding
105. What century is it?
106. Linked Lists - Length &amp; Count
107. Grouped by commas
108. Decipher this!
109. Two Joggers
110. Sorting by bits
111. Triangle type
112. Clocky Mc Clock-Face
113. New Cashier Does Not Know About Space or Shift
114. Ball Upwards
115. Sum consecutives
116. English beggars
117. extract portion of file name
118. Rainfall
119. Mutual Recursion
120. String array duplicates
121. Let's Recycle!
122. Backwards Read Primes
123. Sort Arrays (Ignoring Case)
124. Calculate String Rotation
125. Maze Runner
126. Unary function chainer
127. Put the exclamation marks and question marks on the balance - are they balanced?
128. Coordinates Validator
129. Where is my parent!?(cry)
130. How Much?
131. Prize Draw
132. Introduction to Esolangs and My First Interpreter (MiniStringFuck)
133. Steps in Primes
134. zipWith
135. Primorial Of a Number
136. Salesman's Travel
137. Hamming Distance
138. Is Integer Array?
139. String transformer
140. Remove the parentheses
141. Difference of 2
142. Bingo Card
143. Arrh, grabscrab!
144. Image host filename generator
145. Matrix Transpose
146. The Deaf Rats of Hamelin
147. &quot;Stringing&quot;+&quot;Me&quot;+&quot;Along&quot;
148. Format words into a sentence
149. Sequences and Series
150. Find the Mine!
151. Pascal's Triangle #2
152. Number Zoo Patrol
153. Design a Simple Automaton (Finite State Machine)
154. Transform To Prime
155. Manhattan Distance
156. Autocomplete! Yay!
157. Twisted Sum
158. PI approximation
159. Higher-Order Functions Series - Find the most senior developer
160. Triangle number check
161. Loose Change
162. Evil Autocorrect Prank
163. Throwing Darts
164. Higher-Order Functions Series - Will all continents be represented?
165. Binary to Text (ASCII) Conversion
166. Financing Plan on Planet XY140Z-n
167. Tank Truck
168. All Star Code Challenge #15
169. A disguised sequence (I)
170. Integer depth
171. Moves in squared strings (II)
172. Collatz
173. Who has the most money?
174. Simple Fun #79: Delete a Digit
175. Playing on a chessboard
176. Banker's Plan
177. Strip Url Params
178. Reducing by steps
179. Srot the inner ctonnet in dsnnieedcg oredr
180. Calculate the area of a regular n sides polygon inside a circle of radius r
181. Simple frequency sort
182. Irreducible Sum of Rationals
183. Round by 0.5 steps
184. Pokemon Damage Calculator
185. How many pages in a book?
186. Almost Even
187. PatternCraft - Strategy
188. PatternCraft - State
189. String average
190. PatternCraft - Decorator
191. Duplicate Arguments
192. Clock in Mirror
193. Positions Average
194. Custom FizzBuzz Array
195. Arrays Similar
196. Simple Substitution Cipher Helper
197. Simple Sentences
198. Find within array
199. Coding Meetup #15 - Higher-Order Functions Series - Find the odd names
200. Ackermann Function
201. Angle Between Clock Hands
202. Coding Meetup #9 - Higher-Order Functions Series - Is the meetup age-diverse?
203. Error correction #1 - Hamming Code
204. Who won the election?
205. Most Frequent Weekdays
206. Shortest steps to a number
207. Row of the odd triangle
208. Alphabet war - airstrike - letters massacre
209. Prime Factors
210. More Zeros than Ones
211. The Shell Game
212. Numericals of a String
213. Schrödinger's Boolean
214. Sum two arrays
215. RoboScript #1 - Implement Syntax Highlighting
216. Piano Kata, Part 1
217. Compare Versions
218. Permute a Palindrome
219. What's A Name In?
220. Message Validator
221. Complete Fibonacci Series
222. ASCII hex converter
223. Alphabetized
224. Basic Encryption
225. Simple Simple Simple String Expansion
226. Count the divisible numbers
227. Are we alternate?
228. Braking well
229. Adding ordinal indicator suffixes to numbers
230. up AND down
231. Longest alphabetical substring
232. Lambdas as a mechanism for Open/Closed
233. Fruit Machine
234. Number Format
235. Parabolic Arc Length
236. Sum of many ints
237. Even Fibonacci Sum
238. Hidden &quot;Cubic&quot; numbers
239. Coding Meetup #13 - Higher-Order Functions Series - Is the meetup language-diverse?
240. Hanoi record
241. Feynman's square question
242. Function iteration
243. Crack the PIN
244. Color Choice
245. Frog jumping
246. Split and then add both sides of an array together.
247. Easy Balance Checking
248. Simple card game
249. Reach Me and Sum my Digits
250. The Office V - Find a Chair
251. Adjacent repeated words in a string
252. Turn String Input into Hash
253. Sorting on planet Twisted-3-7
254. The maximum sum value of ranges -- Simple version
255. Regexp Basics - is it IPv4 address?
256. Moves in squared strings (III)
257. Reversing a Process
258. Catalog
259. first character that repeats
260. Change it up
261. Arabian String
262. 1RM Calculator
263. Basics 08: Find next higher number with same Bits (1's)
264. 1/n- Cycle
265. Linked Lists - Insert Nth Node
266. Casino chips
267. Dbftbs Djqifs
268. Valid string
269. Harshad or Niven numbers
270. Bowling Pins
271. Sum of prime-indexed elements
272. N smallest elements in original order
273. Look and say numbers
274. Parse HTML/CSS Colors
275. Sort My Animals
276. Sortable Shapes
277. I need more speed!
278. The Enigma Machine - Part 1: The Plugboard
279. Errors : histogram
280. Framed Reflection
281. Emotional Sort ( ︶︿︶)
282. HTML dynamic color string generation
283. The takeWhile Function
284. Zero-plentiful Array
285. The Book of Mormon
286. Duplicates. Duplicates Everywhere.
287. Odd-heavy Array
288. Number of anagrams in an array of words
289. Simple string indices
290. Dead Ants
291. Upside down numbers
292. Doors in the school
293. Cat and Mouse - Harder Version
294. Easy Diagonal
295. uniq (UNIX style)
296. Pizza pieces
297. Custom Array Filters
298. Quick (n choose k) calculator
299. Fibonacci Reloaded
300. Potion Class 101
301. Breaking search bad
302. Circularly Sorted Array
303. Rotate Array
304. Array combinations
305. Last Survivors Ep.2
306. Ease the StockBroker
307. Calculate number of inversions in array
308. Pairs of Bears
309. Linked Lists - Sorted Insert
310. Compare powers
311. Selective Array Reversing
312. Unwanted dollars
313. Exercise in Summing
314. Find Cracker.
315. Single character palindromes
316. Moduli number system
317. Estimating Amounts of Subsets
318. Pentabonacci
319. Urban Dictionary
320. Lowest product of 4 consecutive numbers
321. Next Version
322. Sudoku board validator
323. Count the days!
324. FIXME: Hello
325. Simple Fun #52: Pair Of Shoes
326. Binaries
327. Anagram difference
328. Repeated Substring
329. IP Address to Number
330. Linked Lists - Remove Duplicates
331. Organise duplicate numbers in list
332. Parse a linked list from a string
333. Element equals its index
334. Simpson's Rule - Approximate Integration
335. 80's Kids #7: She's a Small Wonder
336. Tic-Tac-Toe-like table Generator
337. Ascend, Descend, Repeat?
338. Single Word Pig Latin
339. Data compression using run-length encoding
340. Write Number in Expanded Form - Part 2
341. Inside Out Strings
342. Basics 03: Strings, Numbers and Calculation
343. Build Tower Advanced
344. Reverse Vowels In A String
345. Swap Case Using N
346. Rotate Array (JS)
347. Uncollapse Digits
348. Wave Sorting
349. Disease Spread
350. Sqrt approximation
351. Simple Fun #23: Square Digits Sequence
352. Rank Vector
353. Begin your day with a challenge, but an easy one.
354. The maximum and minimum difference -- Simple version
355. Mysterious function
356. Cycle a list of values
357. Surrounding Primes for a value
358. Killer Garage Door
359. A String of Sorts
360. Separate The Wheat From The Chaff
361. Lucas numbers
362. String tops
363. Vowels Back
364. How Many Reindeers?
365. Convert integer to Whitespace format
366. Padovan numbers
367. Return 1, 2, 3 randomly
368. Back and forth then Reverse!
369. Only Duplicates
370. Binary Tree Compare
371. Numbers of Letters of Numbers
372. Multiples of 3 and 5 redux
373. Simple Fun #305: Typist
374. Assemble string
375. Happy numbers
376. Sum of a Sequence [Hard-Core Version]
377. Simple Fun #141: Hamming Distance
378. Calculate Pyramid Height
379. Car Number Plate Calculator
380. File Path Operations
381. Calculate the function f(x) for a simple linear sequence (Easy)
382. String subpattern recognition I
383. Cat Kata, Part 1
384. The Lamp: Revisited
385. Follow that Spy
386. Three added Characters
387. ASCII Fun #1: X- Shape
388. Smallest Permutation
389. Twin Prime
390. Simple prime streaming
391. Making Change
392. SHA-256
393. Points in the circle
394. Simple Web Framework #1: Create a basic router
395. Squares in a Rectangle
396. Simple Fun #160: Cut The Ropes
397. RNA to Protein Sequence Translation
398. Determine the date by the day number
399. Non-even substrings
400. Find last Fibonacci digit [hardcore version]
401. Moves in squared strings (IV)
402. Numerical Palindrome #1.5
403. Fun with lists: countIf
404. Versions manager
405. ASCII Fun #2: Funny Dots
406. Jungerstein's Math Training Room: 1. How many zeros are at the end of n!! ?
407. Find The Duplicated Number in a Consecutive Unsorted List - Tougher Version
408. Common array elements
409. Point in Polygon
410. search in multidimensional array
411. Sort odd and even numbers in different order
412. Simple time difference
413. Greatest Position Distance Between Matching Array Values
414. Cumulative Triangle
415. Thinkful - Logic Drills: Red and bumpy
416. Check if two words are isomorphic to each other
417. Bonuses
418. Floating-point Approximation (I)
419. Number , number ... wait LETTER !
420. Complete The Pattern #8 - Number Pyramid
421. Nested List Depth
422. Make A Window
423. Ordinal Numbers
424. Consecutive Count
425. Create a frame!
426. Sort sentence pseudo-alphabetically
427. Loneliest character
428. Vowel Shifting
429. Sequence classifier
430. Checkered Board
431. High score table
432. Reducing by rules to get the result
433. Alternating Loops
434. Simple Fun #135: Missing Alphabets
435. Yes No Yes No
436. Pete, the baker (part 2)
437. Odd/Even number of divisors
438. Proof Read
439. Master of Files
440. Simple decrypt algo
441. Simple square numbers
442. Word Mesh
443. Array Exchange
444. SumFibs
445. Midpoint Sum
446. Generic numeric template formatter
447. Prime factorization
448. Simple Fun #15: Addition without Carrying
449. Divisible Ints
450. World Bits War
451. Adding Binary Numbers
452. Special Multiples
453. Required Data I
454. Ranking NBA teams
455. Simple Fun #165: Withdraw
456. Number of measurements to spot the counterfeit coin
457. Find X
458. Polybius square cipher - encode
459. Plenty of Fish in the Pond
460. Running Average
461. Words to Hex
462. Strongest even number in an interval
463. PhoneWords
464. Regex Tic Tac Toe Win Checker
465. Pell Numbers
466. Count the photos!
467. String Suffixes
468. Basics 06: Reversing and Combining Text
469. Piano Kata, Part 2
470. String searching with wildcard
471. Inserting multiple strings into another string
472. Reverse a singly-linked list
473. Simple Fun #132: Number Of Carries
474. Points On A Line
475. Not prime numbers
476. Address Book by State
477. Ping-Pong service problem
478. Fractions class
479. Count Repeats
480. Most profit from stock quotes
481. Find the Nexus of the Codewars Universe
482. Spelling Bee
483. Sort Strings by Most Contiguous Vowels
484. The Walker
485. Linear Regression of Y on X
486. Missing Alphabet
487. Numerical Palindrome #4
488. Binding within the List Monad
489. Unknown amount of duplicates. One missing number.
490. Keyword Cipher
491. Linked Lists - Insert Sort
492. Permutations and Dot Products
493. Simple Fun #258: Is Divisible By 6
494. What's Your Poison?
495. I Liked the SQL Better...
496. Simple nearest prime
497. Convert ISBN-10 to ISBN-13
498. Palindromic Numbers
499. FIRE and FURY

Codewars Katas 5kyu

Katas de nivel 5. Dificultad moderada alta.

1. Moving Zeros To The End
2. Simple Pig Latin
3. Human Readable Time
4. RGB To Hex Conversion
5. The Hashtag Generator
6. Rot13
7. Directions Reduction
8. Calculating with Functions
9. Maximum subarray sum
10. Extract the domain name from a URL
11. Pete, the baker
12. Product of consecutive Fib numbers
13. First non-repeating character
14. Scramblies
15. Weight for weight
16. Number of trailing zeros of N!
17. Greed is Good
18. String incrementer
19. Not very secure
20. Perimeter of squares in a rectangle
21. PaginationHelper
22. Primes in numbers
23. A Chain adding function
24. Can you get the loop ?
25. Regex Password Validation
26. Pick peaks
27. Integers: Recreation One
28. Sum of Pairs
29. int32 to IPv4
30. Count IP Addresses
31. Last digit of a large number
32. Memoized Fibonacci
33. ROT13
34. Tic-Tac-Toe Checker
35. Gap in Primes
36. Best travel
37. What's a Perfect Power anyway?
38. Mean Square Error
39. Is my friend cheating?
40. Beeramid
41. Josephus Survivor
42. Josephus Permutation
43. Common Denominators
44. Convert PascalCase string into snake_case
45. Convert A Hex String To RGB
46. ISBN-10 Validation
47. Merged String Checker
48. My smallest code interpreter (aka Brainf**k)
49. Vector class
50. Simple assembler interpreter
51. Factorial decomposition
52. Square Matrix Multiplication
53. Lazy Repeater
54. Snakes and Ladders
55. Longest Common Subsequence
56. Phone Directory
57. Molecule to atoms
58. (Ready for) Prime Time
59. Simple Events
60. Going to zero or to infinity?
61. Find the unique string
62. Base64 Encoding
63. Find the smallest
64. First Variation on Caesar Cipher
65. Land perimeter
66. Simple fraction to mixed number converter
67. Diophantine Equation
68. Did you mean ...?
69. Buddy Pairs
70. Luck check
71. Least Common Multiple
72. Decimal to Factorial and Back
73. Help your granny!
74. Caesar Cipher Helper
75. John and Ann sign up for Codewars
76. Esolang Interpreters #2 - Custom Smallfuck Interpreter
77. flatten()
78. The Clockwise Spiral
79. Guess The Gifts!
80. Play with two Strings
81. Write out numbers
82. Closest and Smallest
83. Largest product in a series
84. Largest Difference in Increasing Indexes
85. k-Primes
86. Return substring instance count - 2
87. Blackjack Scorer
88. Fun with trees: array to tree
89. By the Power Set of Castle Grayskull
90. The Hunger Games - Zoo Disaster!
91. Some Egyptian fractions
92. Airport Arrivals/Departures - #1
93. Which x for that sum?
94. Don't Drink the Water
95. Probabilities for Sums in Rolling Cubic Dice
96. Simple Fun #166: Best Match
97. 80's Kids #6: Rock 'Em, Sock 'Em Robots
98. Calculate Variance
99. Secret knock
100. Ninja vs Samurai: Attack + Block
101. Matching And Substituting
102. Rotate an array matrix
103. Conway's Game of Life
104. Finding an appointment
105. Sort - one, three, two
106. Consecutive k-Primes
107. Battle ships: Sunk damaged or not touched?
108. Metric Units - 1
109. Sort arrays - 3
110. Numbers that are a power of their sum of digits
111. Coding with Squared Strings
112. Street Fighter 2 - Character Selection - Part 2
113. Resistor Color Codes, Part 2
114. Mod4 Regex
115. Simple string expansion
116. Second Variation on Caesar Cipher
117. Tongues
118. Fibo akin
119. validDate Regex
120. Don't Eat the Last Cake!
121. Interleaving Arrays
122. Conway's Look and Say - Generalized
123. Fibonacci Streaming
124. Bird Mountain
125. Find heavy ball - level: master
126. Binary Tree Traversal
127. Poker cards encoder/decoder
128. Alphabet wars - nuclear strike
129. 1's, 0's and wildcards
130. Prime number decompositions
131. Emirps
132. Mongodb ObjectID
133. Mystery function #1
134. Connect 4
135. Basic DeNico
136. Car Park Escape
137. Paginating a huge book
138. Bowling score calculator
139. Linked Lists - Alternating Split
140. Is the King in check ?
141. All that is open must be closed...
142. Convert all the cases!
143. The Fruit Juice
144. ASCII85 Encoding &amp; Decoding
145. How Many Numbers? II
146. Fun with trees: is perfect
147. Pascal's Diagonals
148. Value of x
149. A Man and his Umbrellas
150. RoboScript #2 - Implement the RS1 Specification
151. Sierpinski's Gasket
152. Morse Encoding
153. Simple CSS selector comparison
154. Vigenère Autokey Cipher Helper
155. First n Prime Numbers
156. Base64 Numeric Translator
157. Sum of (Two) Squares
158. Evaluate a postfix expression
159. Only-Readable-Once list
160. Calculate Fibonacci return count of digit occurrences
161. Sum and Rest the Number with its Reversed and See What Happens
162. Basic Nico variation
163. Zonk game
164. Mixbonacci
165. count '9's from 1 to n
166. Grab CSV Columns
167. Alphabet war - Wo lo loooooo priests join the war
168. Square sums (simple)
169. Efficient Power Modulo n
170. Game - Electrons around the cores
171. Knapsack Part 1 - The Greedy Solution
172. Simple number sequence
173. Missing number in Unordered Arithmetic Progression
174. Ninety Nine Thousand Nine Hundred Ninety Nine
175. Binary search tree validation
176. Tree to list
177. Let's Play Darts!
178. Base -2
179. Compute the Largest Sum of all Contiguous Subsequences
180. Scraping: Codewars Top 500 Users
181. Primes with Even Digits
182. Histogram - V1
183. Readability is King
184. Linked Lists - Front Back Split
185. Bananas
186. uniq -c (UNIX style)
187. Iterative Rotation Cipher
188. Vector Class
189. Euler's method for a first-order ODE
190. URL shortener
191. Simple Encryption #2 - Index-Difference
192. Simultaneous Equations - Three Variables
193. Typoglycemia Generator
194. 1-800-CODE-WAR
195. Scraping: Get the Year a CodeWarrior Joined
196. Soundex
197. Unique digits sequence
198. Rule 30
199. Longest sequence with zero sum
200. Packing your backpack
201. The maximum sum value of ranges -- Challenge version
202. Sections
203. String -> N iterations -> String
204. All Star Code Challenge #19
205. ■□ Pattern □■ : Zoom
206. Bob's reversing obfuscator
207. Weird prime generator
208. Break the Caesar!
209. N00bify - English to n00b Translator
210. Church Booleans
211. [Geometry A-1] Locate point - to the right, to the left or on the vector?
212. Simple Finite State Machine Compiler
213. Ookkk, Ok, O? Ook, Ok, Ooo!
214. Bulk up!
215. Simple Encryption #4 - Qwerty
216. Swap Node Pairs In Linked List
217. The Road-Kill Detective
218. Hamster me
219. Integer to English
220. #9 Matrices: Adding diagonal products
221. Mean without outliers
222. Esoteric Language: 'Poohbear' Interpreter
223. Find heavy ball - level: ubermaster
224. Binary Search Trees
225. A Simple Music Encoder
226. Numbers and its Reversal Having Same Prime Factors.
227. Rotate a square matrix like a vortex
228. Binary Contiguous Array
229. Elementary Arithmetic - Carries Count
230. Escape with your booty!
231. Shuffle It Up
232. Ant Bridge
233. Domain name validator
234. Dots and Boxes Validator
235. Numbers with The Highest Amount of Divisors
236. Integer triangles
237. Tracking Hits for Different Sum Values for Different Kinds of Dice
238. Around Fibonacci: chunks and counts
239. The Wrong-Way Cow
240. Reverse Inside Parentheses (Inside Parentheses)
241. Esolang: Ticker
242. Formula 1 Race
243. Find the Word Pair!
244. Simple Fun #358: Vertical Histogram Of Letters
245. Card Game
246. Would you believe... Talk like Siegfried
247. Transformation of a Number Through Prime Factorization
248. Range of Integers in an Unsorted String
249. Four Letter Words ~ Mutations
250. Identifying Top Users and their Corresponding Purchases On a Website
251. TV Remote (symbols)
252. Simple Fun #81: Digits Product
253. Penalty for speeding
254. Simple Fun #206: Factorial Digits
255. Phone numbers
256. Complete Binary Tree
257. Langton's ant
258. Processes
259. Sports League Table Ranking
260. Maximum Subarray Sum II
261. Esolang: Stick
262. Sequence of Power Digits Sum
263. The maximum and minimum difference -- Challenge version
264. Sorting Arrays by the Amount of Perfect Squares that Each Element May Generate
265. Prime Sextuplets
266. A Bubbly Programming Language
267. Operations on sequences
268. Hungry Hippos
269. When The Sum of The Divisors Is A Multiple Of The Prime Factors Sum
270. Check that the situation is correct
271. Simple Fun #337: The Original Number
272. Simple parenthesis removal
273. Esolang: InfiniTick
274. Binary Tree Serpentine Traversal
275. Simple Fun #178: Faulty Odometer
276. Rotate a square matrix in place
277. Interlaced Spiral Cipher
278. Challenge Fun #14: Target Game
279. Minimum path in squares
280. field chained HTML formatting
281. Python's Dynamic Classes #3
282. Euler Totient Function
283. Build a quadratic equation
284. Find the safest places in town
285. Tic-Tac-Toe (3D)
286. Cockroach Bug Scatter
287. WordSquare
288. Biggest Sum
289. Traffic Lights - multiple cars
290. Data mining #1
291. Nut Farm 2
292. Max Collatz Sequence Length
293. myjinxin katas #001 : Rotate, Remove, Return
294. Conways game of life on a toroidal array
295. Give The Biggest Prime Factor And The Biggest Divisor Of A Number
296. Generating Numbers From Prime Factors I
297. Sat Nav directions
298. Mastermind
299. Working With Coloured Numbers
300. US Postal Codes
301. My Very Own Python's Split Function
302. Excel's COUNTIF, SUMIF and AVERAGEIF functions
303. Pigs in a Pen
304. Find the Partition with Maximum Product Value
305. Calculate the derivative of a polynomial
306. Python Reflection: Disassembling the secret
307. Palindrome integer composition
308. Squarefree Part of a Number
309. The longest bracket substring in the string
310. Simple Fun #335: Two Programmers And Gold
311. Simple Fun #26: Weak Numbers
312. Simple Fun #333: Incomplete Virus
313. Barista Manager
314. Regex for Gregorian date validation
315. RPG dice roller
316. Simple Fun #167: Spreadsheet
317. City Swim - 2D (TowerFlood And PlainFlood)
318. Simple Fun #53: Combs
319. A Brave New Wordle
320. Simple Fun #299: Look And Say And Sum
321. Fizz Buzz (with restrictions)
322. Find Nearest Fibonacci Number
323. Hex Dump
324. Now that's a crib!
325. Haiku Checker
326. Vowel Alternations
327. Cycle Detection: Floyd's The Tortoise and the The Hare
328. Multi Line Task: Hello World (Easy one)
329. Adding words - Part II
330. Become The Ultimate Phychic
331. Ziggurat Ride of Fortune
332. Distinct contiguous elements in every window of size k
333. LZ78 compression
334. Simple Fun #89: Boxes Packing
335. Minimum number of taxis
336. Find All the Possible Numbers Multiple of 3 with the Digits of a Positive Integer.
337. Brainscrambler - Esoteric programming #3
338. Rectangle into Rectangles
339. Translate DNA in 6 frames
340. Simple Fun #220: Simplified Array
341. Simple Fun #211: Frog's Jumping
342. Sorting Poker
343. Features of a Given Array
344. Minimum unfairness of a list/array
345. Choose featured projects for Gratipay's homepage!
346. Precise fractions pt. 1 - basics
347. Count the Domain Names
348. Ratio of Bouncy Numbers
349. The Hunger Games - Foxes and Chickens (Poison)
350. @validate_args
351. Simple Fun #273: Powerset
352. Connecting Values
353. Simple Fun #188: Slogans
354. Simple Fun #155: Pac-Man
355. Keep it short (with restrictions)
356. Pattern Generator
357. Crossword Puzzle! (2x2)
358. Reversi row rudiments
359. Ordering Beers in Poland
360. Traffic Jam
361. Diagonals
362. Splitting the Workload (part I)
363. Elo rating - one game, one pair
364. The &quot;CROTCH KICK OR BLOCK&quot; kata
365. T.T.T.57: Reverse a number
366. Chameleon unity
367. Largest rectangle in background
368. Calculate the expression
369. Finding the Closest Maximum Values of a Function to an Upper Limit
370. Divide and maximize
371. self_converge
372. Function Addition
373. Complete the triangle pattern
374. Valid Chess Moves
375. Max sum path
376. Easy Cyclist's Training
377. Subsequence Product Sum
378. Solve the Grid! Binary Toggling Puzzle
379. Getting along with Bernoulli's numbers
380. Simple Fun #125: Array Equalization
381. Help Suzuki pack his coal basket!
382. The Bee
383. Krazy King Blackjack
384. Dynamic Programming #1: Shortest Path in a Weighted DAG
385. Simple Fun #44: Three Split
386. Self-closing Cookie Jar
387. Wood Cut
388. Simple Fun #127: Prime Operations
389. Endianness Conversion
390. Flotsam
391. The Primes as a Result of the Longest Consecutive Sum I
392. Pandigital Sequence
393. Car Rental Business Needs Statistics and Programming
394. Simple Fun #339: Maximum Product 2
395. The Sum and The Rest of Certain Pairs of Numbers have to be Perfect Squares (more Challenging)
396. License Plate Recognition
397. Simple Fun #389: The Order Of Ribbons
398. Cheating a bit...
399. Solve For X
400. Regex matching all positive numbers below n
401. Following the Paths of Numbers Through Prime Factorization
402. Integer Right Triangles
403. Funnel Out A String
404. The Binary Binary Expansion
405. Simple Fun #118: Sum Or Product
406. Combining predicates
407. Master your primes: sieve with memoization
408. Fixed-length integer partitions
409. Building a Sequence Cocatenating Digits with a Given Order.
410. Chess Fun #9: Bishops And Rooks
411. Roman numerals, Zeroes and Fractions
412. Loose Change (Part 2)
413. Removing Internal Vertices
414. Geohashing
415. Digits
416. Additive Numbers
417. Rearrangement of Numbers to Have The Minimum Divisible by a Given Factor
418. Tri-Bicolor Tiling
419. Subarrays with an odd number of odd numbers
420. Topological Image Processing: 4-Connected Components
421. Closest Neighbouring Points I
422. Mirrored Exponential Chunks
423. Intro to Statistics - Part 1: A Five figure summary
424. Probable Prime or Composite (Much bigger primes)
425. Kata 2019: Bonus Game I
426. One Line Task: Diamond Creator Pro
427. The Hunger Games - Shut the gate
428. Check the status of the generator expression
429. Snake Collision
430. Simple Fun #357: Show The Digits
431. Playing with Sandpiles
432. Eight ways to iterate over table
433. Letterss of Natac
434. Primitive Pythagorean Triples
435. Subsequence Sums
436. Operator Insertion
437. Word Search Grid
438. Light Switch
439. Simple Fun #272: Throwing Dice
440. Optimized Pathfinding Algorithm
441. A Challenging Sequence.
442. Minus 1: is divisible?
443. Trees to Parentheses, and Back
444. Simple Fun #123: DPC Sequence
445. Context manager decorator
446. Find the Most Probable Sum Value or Values, in Rolling N-dice of n Sides
447. Simple RSA Implementation
448. Reversed Self Power
449. What’s the degree?
450. Secret Agent Time Travel Calculations
451. Find the Longest Increasing or Decreasing Combination in an Array
452. Pandigital Powers
453. Word Wrap
454. Department scheduler [simple]
455. A Scandal in Bohemia
456. Primes in the Last Digits of Huge Numbers
457. Multisize Nonogram Encoder
458. Binary Simulation
459. Map and Filter to Get a Special Sequence of Integers
460. MONTE CARLO 3D
461. Positions of a substring in a string
462. Is this a good batch of stout? (Student's t test)
463. Program hangs!
464. Minimum and Maximum Product of k Elements - Advanced
465. RegEx Like a Boss #4 CodeGolf : Prime length
466. Ulam Sequences (performance edition)
467. Cryptic Cave: Episode 1
468. Card-Chameleon, a Cipher with Playing Cards
469. T.T.T.56: Make a monthly calendar board
470. Combinations in a Set Using Boxes
471. Codewars API
472. Compression : impossible
473. Sort a massive list of strings (hard)
474. Recovering from a Disk Crash - Reverse Engineering Some Lost Code!
475. Refactor a node-based calculator (DRY)
476. Devil's Sequence
477. Unusual Cipher
478. Constrained GCD
479. Hofstadter's Figure-Figure sequence
480. Wimbledon Scoreboard - Game
481. Circles: Count the Circles Having a Given Internal Point.
482. Closest Neighbouring Points II
483. NxN Connect X
484. The Dots and Parentheses
485. Fouriest transformation
486. 100 prisoners and a light bulb
487. Prime Ant - Performance Version
488. Simple Fun #112: Array Erasing
489. Simple Fun #139: Black And White
490. Prime Grasshopper
491. Number of integer partitions with distinct parts
492. Function Algebra
493. Happy Numbers (performance edition)
494. Challenge Fun #13: First Operation Character
495. Logic Detective
496. Rudimentary Pivot Table
497. Pyramide d'Azkee
498. String generation by pattern
499. Best place at concert
500. Equivalent Dice
501. T.T.T.38: The sum of each digits
502. Multiples of some primes
503. [St]arting [St]ring
504. Lambda Calculus: Lists
505. Fix the pipes
506. Roguelike game 1 - stats and weapon
507. Lunar Drilling Operation
508. Directory tree
509. Chess position parser (FEN)
510. Blobservation 2: Merge Inert Blobs
511. Graphics Series #3: Repair the LED display
512. [Geometry B -1] Point in a triangle?
513. Number of players for knockout/round-robin hybrid contest (easy mode)
514. QR-Code Message Encoding
515. Counting the Webdesigns based on Used Colours
516. Z-algorithm
517. A self-descriptive fractal sequence
518. Graph-like Sequence
519. Lambda Calculus: Lists as folds I
520. Readable Specification Pattern
521. Right Truncatable Harshad numbers
522. Limited number of instances
523. Dating with hypergamy
524. Simple Fun #134: Fix Progression
525. Function Overloading for Types
526. Folding a cube
527. Hack the NSA
528. Recamán Sequence Sum
529. Cricket Scores
530. Bouncy Numbers with N Digits
531. Wristband Patterns
532. Stable Weight Arrangement
533. Probability to Win an Infinite Tennis Game
534. Recursive Floor Sequence
535. Underload Interpreter
536. Odd-Even Compositions
537. Fix arithmetic progression
538. What Would They Have in Common?
539. The &quot;AA&quot; Number Notation
540. AdFly Encoder and Decoder
541. Combination Lock
542. Constructing polynomials
543. Simple Fun #314: Lucky Candies
544. Find Out the Number of Gold Coins!
545. Boxes in boxes
546. Train of dominoes
547. Find the most adjacent integers of the same value in a grid
548. Crazy rabbit
549. Binary relation optimization
550. Spreadsheet Cell Name Conversions
551. Pig Game
552. Dobble: Identify the missing cards
553. Convergents of e
554. Family Tree - Ancestors
555. 3-2-1 Fire!
556. (Insane) N Warriors and a Lamp
557. Word Spiral
558. Primes with Two, Even and Double Even Jumps
559. Chess Fun # 13 : RegEx Like a Boss #1 : Valid Pawn Moves
560. Gnomes and Hats: A Horror Story
561. Three-valued logic
562. Knights
563. Math expression [HARD][CODE-GOLF]
564. Generate Numbers From Digits #2
565. Sudoku board validator - Code Golf
566. The Big Guy and The Bagman
567. How many strings use all symbols of a given alphabet at least once
568. Checkerboard King Combo Move
569. Water pouring problem
570. Working With Coloured Numbers II
571. Total Primes - Advanced Version
572. Langton's Ant - Advanced Version
573. Transposing Guitar Tabs
574. Determine Results of Pole Vault Competition
575. Simple cluster analysis
576. Electron configuration of chemical elements
577. Happy traveller [#2]
578. Arithmetic Expression Placeholders
579. Lattice Paths, But...?
580. Smallest Multiple of 1 to n
581. Array with distance of N
582. Randonneuring control calculator
583. Crontab Parser
584. Mistaking a forest for a tree
585. Minimum number of moves
586. Little PL/SQL parser - get text literals
587. ASCII Mandelbrot Set
588. Subsequence Sums II
589. Next Higher Value # 1
590. From Traversals to Tree
591. Wordle! Cheat bot
592. Find the nth Term of a Sequence
593. Almost Isosceles Integer Triangles With Their Angles With Asymptotic Tendency
594. Recursive ASCII Fractals
595. Dependable Jobs Schedule
596. Cliff Jumping
597. Integer Triangles Having One Angle The Double of Another One
598. Approximate Solution of Travelling Salesman Problem
599. Checkout Line Pricing
600. Teknonymy
601. Smoke Signals
602. Ways from one number to another
603. Prime Path Finder
604. Render the Code Golf Champions
605. Longest Subarray with Maximum Average Value
606. The Doppelganger Enigma
607. Cargo-Bot Interpreter
608. Real World Applications of Sqrton
609. Following Sierpinski's Footprints
610. The Rubik's Cube
611. Extreme Hat Game
612. Socialist distribution (performance edition)
613. Configurations of White and Black Knights on a 3x3 chessboard
614. Lisp-esque parsing [Code Golf]
615. Let's Play Darts: Beat The Power!
616. Cheyenne Wigwam
617. Elevator malfunctioning
618. Give me the Corresponding Proper Fraction!
619. Combinations in a Set Using Boxes II
620. Pair 'em Up
621. Hat Game 2
622. Count The Hits Adding Contiguous Powers!
623. The Simple Game
624. Find the Missing Number using NAND
625. Infinite continued fractions
626. Next Higher Value #2
627. Football Season
628. Spreading Spores Graph
629. Chain Reaction - Minimum Bombs Needed
630. Expand Absolute Values
631. Centered Polygonal Number
632. NegaFibonacci representation
633. Multidimensional Neighbourhood
634. Sokoban re-solver : level recovery from solution
635. Propositional SAT Problem
636. Synthesize Boolean Functions From Examples
637. 🧬Cooking life on Proto Earth🌎
638. Reflecting Light V2
639. Castle of Cubes
640. Kata 2019: Bonus Game II
641. Perfect Binary Tree Traversal: BFS to DFS
642. Roman Army Formations: Contubernium
643. Take Down Codewars!
644. Break Caesar cipher variation : PNG image
645. Amoeba: Blind Maze
646. Draw the borders I - Simple ascii border
647. Coping with NP-Hardness #3: Finding the Minimum Hamiltonian Cycle
648. Getting the Letter with Tail
649. Random sampling in constant time
650. &quot;Dual Numbers&quot; and &quot;Automatic&quot; (nth) Derivatives
651. Jump to zero (Subtask 4)
652. Polyomino symmetry
653. Windmill Cycle
654. Play Nerdle - It's Wordle for Calculations
655. The Trapped Odd Knight
656. Buying the Farm : Irrigation
657. 2D Cellular Automata [Code Golf]
658. Draw the borders II - Fast and furious

Codewars Katas 4kyu

Katas de nivel 4. Dificultad difícil.

1. Human readable duration format
2. Snail
3. Range Extraction
4. Strip Comments
5. So Many Permutations!
6. Sum Strings as Numbers
7. Sum of Intervals
8. Next bigger number with the same digits
9. The observed PIN
10. Roman Numerals Helper
11. Most frequently used words in a text
12. Strings Mix
13. Twice linear
14. Nesting Structure Comparison
15. Matrix Determinant
16. Sum by Factors
17. Pyramid Slide Down
18. parseInt() reloaded
19. Recover a secret string from random triplets
20. Catching Car Mileage Numbers
21. Codewars style ranking system
22. Decode the Morse code, advanced
23. Sort binary tree by levels
24. Hamming Numbers
25. Square into Squares. Protect trees!
26. Next smaller number with the same digits
27. Counting Change Combinations
28. Validate Sudoku with size 'NxN'
29. Path Finder #1: can you reach the exit?
30. Explosive Sum
31. Vigenère Cipher Helper
32. Find the unknown digit
33. Magnet particules in boxes
34. Text align justify
35. Binary multiple of 3
36. Smallest possible sum
37. A Simplistic TCP Finite State Machine (FSM)
38. Conway's Game of Life - Unlimited Edition
39. All Balanced Parentheses
40. Connect Four
41. Simple Fun #27: Rectangle Rotation
42. Simplifying multilinear polynomials
43. Number of Proper Fractions with Denominator d
44. Breadcrumb Generator
45. Path Finder #2: shortest path
46. Shortest Knight Path
47. Simple Fun #159: Middle Permutation
48. How many numbers III?
49. 4 By 4 Skyscrapers
50. Ten-Pin Bowling
51. Boggle Word Checker
52. Befunge Interpreter
53. The Greatest Warrior
54. Getting along with Integer Partitions
55. Ranking Poker Hands
56. Count ones in a segment
57. Factorial tail
58. Differentiate a polynomial
59. Esolang Interpreters #3 - Custom Paintf**k Interpreter
60. Infix to Postfix Converter
61. Currying vs. Partial Application
62. Longest Common Subsequence (Performance version)
63. One Line Task: Squirrel And Tree
64. Instant Runoff Voting
65. Regular expression for binary numbers divisible by 5
66. Sums of Perfect Squares
67. Algebraic Lists
68. Burrows-Wheeler-Transformation
69. Total increasing or decreasing numbers up to a power of 10
70. Number of integer partitions
71. Social Golfer Problem Validator
72. Mystery Function
73. Route Calculator
74. Find all possible number combos that sum to a number
75. Memoized Log Cutting
76. The learning game - Machine Learning #1
77. Find the nth Reverse Number (Extreme)
78. Chinese Numeral Encoder
79. The fusc function -- Part 2
80. T.T.T.#2: Equal to 24
81. SKRZAT!!!
82. Decimal to any Rational or Irrational Base Converter
83. NIM the game
84. RoboScript #3 - Implement the RS2 Specification
85. Brainfuck Translator
86. Simple maze
87. Escape the maze
88. One Line Task: Palindrome String
89. Elemental Words
90. Simple Memory Manager
91. Great Total Additions of All Possible Arrays from a List.
92. Longest Palindromic Substring (Linear)
93. Counting inner calls in an unknown function.
94. Path Finder #4: where are you?
95. Largest Numeric Palindrome
96. Polydivisible Numbers
97. Last digits of N^2 == N
98. Simplexer
99. Organize a Round-robin tournament
100. Church numbers
101. Square and Cube of a Number Become Prime When Reversed
102. 5x5 Nonogram Solver
103. Exponentials as fractions
104. Tracking pawns
105. Coloured Lattice Points Forming Coloured Triangles
106. Can you really count divisors?
107. Sortable Poker Hands
108. Counting String Subsequences
109. Don't give me five! Really!
110. Big Big Big Padovan Number
111. BasE91 encoding &amp; decoding
112. Stack Arithmetic Machine
113. N Linear
114. Block sequence
115. Simple Fun #148: Exchange Sort
116. Permutational Primes
117. Compute a convex hull
118. Trailing zeros in factorials, in any given integer base
119. Simple Fun #119: Sub Sets Parity
120. Lazy Init
121. Create a funnel
122. One Line Task: Zero Or One
123. Count Squares In the Chess Board
124. String -> X-Iterations -> String
125. N queens puzzle (with one mandatory queen position)
126. Alphabet wars - trench assault
127. Lowest base system
128. Helpers For a 3DGame I: Biggest Triangle in a Sphere
129. Regular Expressions (groups): Splitting phone numbers into their separate parts.
130. Unflatten a list (Harder than easy)
131. Generic number class
132. Greedy thief
133. Bernoulli numbers
134. N queens problem (with no mandatory queen position)
135. Bird Mountain - the river
136. Spinning Rings - Fidget Spinner Edition
137. Remember members decorator
138. Solving a puzzle by matching four corners
139. Repetitive Sequence - Easy Version
140. Mahjong - #1 Pure Hand
141. Top Down Movement System
142. Hide a message in a deck of playing cards
143. Dynamic Connectivity
144. Tower Defense: Risk Analysis
145. Space Invaders Underdog
146. Grazing Donkey
147. Undirected weighted graph
148. Associative Operation on Range
149. Spaghetti Code - #2 Hard
150. A Knight's Tour
151. Bribe the Guards of the Crown Jewels
152. Convex hull area
153. Multiply to 'n'
154. We are Family
155. Almost Everywhere Zero
156. Find Product Partitions With Maximum or Minimum Score
157. Linear Equation Solver
158. Four Color Theorem (Easy Version)
159. Area of House from Path of Mouse
160. Dithering
161. Tournament Cross Table with Sonneborn-Berger Score
162. Dice rolls threshold
163. SPF Russia
164. Domino Tiling - 2 x N Board
165. Complete the photo pattern
166. Cracking the Vigenère cipher, step 1: determining key length
167. Multiplying Polynomials
168. Calculate k-th digit of π (Pi)
169. Insane Increasing or Decreasing Numbers
170. The smallest number with a given number of divisors
171. Bad Exception Handling
172. Splitting the Workload (part II)
173. Superheroes Convention #1 Pandemic
174. Create the QR-Code
175. Bridge Puzzle
176. Elementary conveyor
177. Topology #0: Converging Coins
178. Touchdown?
179. Mountain map
180. Queue Battle
181. Big Generalized Fibonacci numbers
182. Strongly connected components
183. Balanced parentheses string
184. Data mining #2
185. Beggar Thy Neighbour
186. Zombie Apocalypse: the Last Number Standing
187. Egg Drops
188. Counting diamonds
189. Shallowest path across the river
190. Python Recipes #1 : Function Overloading
191. Product-Sum Numbers
192. The Bubbly Interpreter
193. RPG Simulator - Defeat the Demon Lord! [Part 1]
194. Set Closure Generator
195. n^k summation
196. Bezier Curves
197. The fibfusc function -- Part 2
198. 'Magic' recursion call depth number
199. Matunga coins
200. Hypercube Lists
201. Maximum clique
202. Circular Limited Sums
203. Domino Tiling - 3 x N Board
204. Connect Letters
205. I hate business trips
206. Numbers with Collatz Starting Patterns
207. Evil genius game - Find the moving chess piece while blindfolded
208. Snake Cube Solver
209. Snafooz solver
210. Domino Tiling - 5 x 2N Board
211. Bridge the Islands
212. Palindrome Counter
213. Challenge Fun #20: Edge Detection
214. Shortest Knight Path(Infinite Chessboard)
215. Advanced binary toggling puzzle
216. Domino Tiling - 2 x N Board -- Challenge Edition!
217. Right truncatable primes in a given base
218. Squaredle solver
219. Next polydivisible number in any base
220. Implementing SHA-1
221. Stepping Stones Puzzle
222. N-th Integer Containing the Digit 1
223. Golf [Code Golf]
224. Spidey Swings Across Town
225. Web Polygons
226. Nelson the Number Theorist
227. Gymbro's Unique Gym - Weight Calculator
228. Pick Until Match
229. Peg Solitaire
230. Happy Numbers. Another performance edition.
231. Mega Connect 4

Codewars Katas 3kyu

Katas de nivel 3. Dificultad difícil.

1. Battleship field validator
2. Make a spiral
3. Sudoku Solver
4. The Millionth Fibonacci Kata
5. Rail Fence Cipher: Encoding and Decoding
6. Last digit of a huge number
7. Alphabetic Anagrams
8. Binomial Expansion
9. Help the general decode secret enemy messages.
10. Screen Locking Patterns
11. Prime Streaming (PG-13)
12. The Lift
13. Path Finder #3: the Alpinist
14. Esolang Interpreters #4 - Boolfuck Interpreter
15. How many are smaller than me II?
16. Fabergé Easter Eggs crush test
17. Huffman Encoding
18. Closest pair of points in linearithmic time
19. Texas Hold'em Hands
20. GET TO THE CHOPPA!
21. Hard Sudoku Solver
22. The builder of things
23. The boolean order
24. N-Parasitic Numbers Ending in N
25. Centre of attention
26. Total area covered by rectangles
27. Papers, Please
28. Line Safari - Is that a line?
29. Plants and Zombies
30. Stargate SG-1: Cute and Fuzzy (Improved version)
31. RoboScript #4 - RS3 Patterns to the Rescue
32. Simplifying
33. Find the cheapest path
34. Count Connectivity Components
35. Battleship field validator II
36. Bloxorz Solver
37. Alphametics Solver
38. Fix the pipes - #2 - is it leaking?
39. Blobservation
40. Breaking the Vigenère Cipher
41. Upside-Down Numbers - Challenge Edition
42. Metaclasses - Simple Django Models
43. Type Transpiler
44. Fluid Volume of a Heightmap
45. Switch the Bulb--Play game Series #10
46. One line task: Is the King in check ?
47. Mahjong - #2 Seven-pairs
48. Permutation-free Strings
49. Unique digit sequence II - Optimization problem
50. Wrap a cube with paper nets
51. Knight's Attack!
52. Insane Tri-Bicolor Tiling
53. Minimal Cost Binary Search Trees
54. Rummy: Find Lowest Scoring Hand
55. Prime counting
56. Escape!
57. Insane Circular Limited Sums
58. Reversi Win Checker
59. The Little Typer: Values, Functions and Currying
60. The smallest n such that n^n mod m = 0
61. Topology #0.1: Converging Coins (Performance edition)
62. Totally Good Permutations
63. Prime Ant - Crazy Version
64. Abstraction elimination
65. No More 5's, Ever
66. Broken 7-segment display - challenge edition
67. My favorite number is III, so...
68. A giant Carmichael number
69. The treasure in the Toroid [Code Golf]