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Train Now

Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.

Description

Scala stuff that needs review/approval, mostly by me.

Both new translations and Scala 2 > 3 updates.

Ad
7 kyu
Snail crawls up
4,576petrosernivka
Fundamentals
Mathematics
4 kyu
Most frequently used words in a text
28,240markprzepiora
Strings
Filtering
Algorithms
Regular Expressions
3 kyu
Rail Fence Cipher: Encoding and Decoding
8,679darrentburgess
Algorithms
Ciphers
Cryptography
Strings
Security
4 kyu
Validate Sudoku with size `NxN`
9,414cbmono
Arrays
Puzzles
Algorithms
Object-oriented Programming
6 kyu
Simple Encryption #1 - Alternating Split
28,811user5036852
Cryptography
Algorithms
Strings
Arrays
Fundamentals
7 kyu
Find the stray number
67,378janitormeir
Fundamentals
Algorithms
5 kyu
Simple Pig Latin
164,300user2505876
Regular Expressions
Algorithms
5 kyu
int32 to IPv4
26,739sahglie
Networks
Bits
Algorithms
5 kyu
Simple Encryption #4 - Qwerty
764user5036852
Cryptography
Security
Strings
Algorithms
5 kyu
Not very secure
46,904mayrsascha
Regular Expressions
Strings
6 kyu
Title Case
37,569user527539
Strings
Fundamentals
Retired
Vowel remover (retired)
45,994naaz
Strings
Fundamentals
4 kyu
Sum Strings as Numbers
43,995nicknovitski
Strings
Big Integers
Algorithms
4 kyu
So Many Permutations!
47,785BattleRattle
Permutations
Strings
Algorithms
6 kyu
Consonant value
18,993KenKamau
Strings
Fundamentals
6 kyu
Find the unique number
146,369isqua
Fundamentals
Algorithms
Arrays
Performance
5 kyu
Can you get the loop ?
28,584Devouring
Algorithms
Linked Lists
Performance
6 kyu
Prüfer sequences and labeled trees
43benjaminzwhite
Algorithms
Mathematics
Graphs
Graph Theory
Trees
Combinatorics
6 kyu
Guess the array
333ice1000
Puzzles
Algorithms
Arrays
Beta
Prison Escape!!(via coins on chessboard)
16Raphael Darley
Status:Waiting for issues to be resolved
Estimated Rank:
4 kyu
Puzzles
8 kyu
Convert to Binary
34,677JapaX
Mathematics
Algorithms
Fundamentals
6 kyu
Reducing a pyramid
251FArekkusu
Algorithms
Performance
6 kyu
Arabian String
2,572dacoxall
Strings
Algorithms
6 kyu
Custom Christmas Tree
1,004myjinxin2015
Strings
ASCII Art
Puzzles
6 kyu
WeIrD StRiNg CaSe
48,468xDranik
Strings
Algorithms
6 kyu
Fibonacci on roids
510GiacomoSorbi
Recursion
Lists
Arrays
Algorithms
5 kyu
Efficient Power Modulo n
1,172osuushi
Mathematics
Algorithms
Performance
4 kyu
Squaredle solver
52bdupau
Puzzles
Games
Algorithms
Strings
5 kyu
Simple RSA Implementation
135psytech140
Cryptography
Algorithms
Number Theory
5 kyu
PaginationHelper
40,357jhoffner
Object-oriented Programming
Arrays
Algorithms
5 kyu
Complete Binary Tree
447ecolban
Binary Trees
Heaps
Data Structures
Fundamentals
4 kyu
Vigenère Cipher Helper
8,364jacobb
Algorithms
Ciphers
Security
Object-oriented Programming
Strings
6 kyu
Levenshtein Distance
1,022petermaier1
Strings
Algorithms
6 kyu
The Book of Mormon
2,477majakudlicka
Fundamentals
Mathematics
Recursion
6 kyu
Text align right
404depperm
Algorithms
Strings
7 kyu
Infinitely Nested Radicals
475Jomopipi
Mathematics
Algorithms
Logic
6 kyu
Sort My Animals
2,545GrahamD
Lists
Sorting
Fundamentals
6 kyu
Cycle a list of values
1,735raine
Algorithms
8 kyu
Power
11,698hokon86
Restricted
7 kyu
Laxative Shot Roulette
1,429tl123
Probability
Puzzles
Data Science
Statistics
8 kyu
ASCII Total
13,197user3220651
Fundamentals
8 kyu
Collatz Conjecture (3n+1)
14,366Goncalerta
Fundamentals
Algorithms
Mathematics
8 kyu
Name on billboard
19,297val_alex
Fundamentals
Restricted
Strings
8 kyu
Crash Override
9,104Peter Rhodes
Strings
Fundamentals
8 kyu
Define a card suit
18,873Dmitry Kudla
Fundamentals
Strings
8 kyu
Template Strings
12,871matt c
Strings
Fundamentals
5 kyu
Pick peaks
28,604frenetic_be
Arrays
Algorithms
5 kyu
Find Out the Number of Gold Coins!
99davimoreno
Mathematics
Number Theory
5 kyu
Smallest Multiple of 1 to n
69Yushi.py
Mathematics
Performance
Number Theory
7 kyu
Fractran Interpreter
227lsnbr
Interpreters
Esoteric Languages
4 kyu
Elemental Words
905dcsmith
Strings
Algorithms
Recursion
Arrays
6 kyu
Array combinations
2,600KenKamau
Fundamentals
Combinatorics
6 kyu
Sum of many ints
2,915farzher
Mathematics
Algorithms
7 kyu
Trilingual democracy
2,121jcsahnwaldt
Fundamentals
Puzzles
Strings
6 kyu
Block Letter Printer
735Galvlbit
Strings
ASCII Art
Algorithms
7 kyu
Recaman Sequence
537dasoca
Algorithms
Performance
7 kyu
Factorial division
2,116Azofainfa
Mathematics
Algorithms
4 kyu
Hide a message in a deck of playing cards
261Zwyx
Cryptography
Mathematics
Games
Permutations
Algorithms
7 kyu
My Language Skills
18,009anter69
Sorting
Arrays
Algorithms
5 kyu
Digitwise addition
143MatttNguyen
Algorithms
Mathematics
6 kyu
Common array elements
1,499KenKamau
Arrays
Performance
Algorithms
6 kyu
Vector Affinity
1,645keithhamilton
Data Structures
Algorithms
5 kyu
Base Reversal Count
29tonylicoding
Algorithms
Mathematics
7 kyu
What dominates your array?
4,485joh_pot
Arrays
Fundamentals
4 kyu
Counting String Subsequences
652hermanschaaf
Algorithms
Dynamic Programming
Strings
7 kyu
Sum of powers of 2
1,338atrX
Fundamentals
Algorithms
4 kyu
Mystery Function
2,149ecolban
Fundamentals
4 kyu
Hamming Numbers
11,860xcthulhu
Number Theory
Algorithms
4 kyu
Big Big Big Padovan Number
534Valek
Performance
Algorithms
Big Integers
6 kyu
The Pyramid of Cubes
344Timewarper
Mathematics
Puzzles
4 kyu
Count ones in a segment
3,126d0n14
Binary
Performance
Algorithms