Kata Library

Career Opportunities

{{ posting.company.name }} is hiring a {{ posting.title }}

FEATURED TAGS

99 Kata Found

7 kyu

Valid Parentheses

7 kyu

Correct the time-string

4,393user50368522 Issues Reported

2 kyu

Evaluate mathematical expression

7,792ankr20 Issues Reported

Beta

Alien's Cube Notation

Status:Testing & feedback needed

Estimated Rank:
5 kyu

2 kyu

Simpler Interactive Interpreter

2,572Wintermute16 Issues Reported

8 kyu

Convert a String to a Number!

173,597bkaes

6 kyu

Make the Deadfish Swim

25,279NullData2 Issues Reported

7 kyu

Convert an array of strings to array of numbers

4 kyu

Simplifying multilinear polynomials

4,160SleepingCode8 Issues Reported

Regular Expressions

5 kyu

Four Letter Words ~ Mutations

Beta

Flatten json errors from a form body payload

13Sigmanificient

Status:Testing & feedback needed

Estimated Rank:
6 kyu

5 kyu

Molecule to atoms

5,415romanzes3 Issues Reported

1 kyu

To BrainFuck Transpiler

176ZED.CWT7 Issues Reported

Esoteric Languages

5 kyu

Extract the domain name from a URL

58,534xianpants11 Issues Reported

Regular Expressions

6 kyu

Music Fun #1 - Major Scale

6 kyu

Reverse polish notation calculator

10,526vgrichina3 Issues Reported

6 kyu

Frequencies of musical notes

5 kyu

Formatting simple HTML

5 kyu

Ninety Nine Thousand Nine Hundred Ninety Nine

692jimmylorunning2 Issues Reported

2 kyu

Regular expression parser

784phaul14 Issues Reported

Functional Programming

7 kyu

Strange Strings Parser!

941tink3r1 Issue Reported

5 kyu

Convert A Hex String To RGB

10,347Krxtopher3 Issues Reported

6 kyu

Weird IPv6 hex string parsing

Beta

Brick by Boring Brick - Mathematical expression interpreter

4morganbarrett1 Issue Reported

Status:Testing & feedback needed

Estimated Rank:
2 kyu

6 kyu

Turn String Input into Hash

2,518user4655293

Beta

Finding Derivatives

Status:Awaiting approval

Estimated Rank:
2 kyu

5 kyu

1,182constablebrew2 Issues Reported

7 kyu

NLP-Series #1 - Inverted Index

288ProcrasTech1 Issue Reported

Regular Expressions

5 kyu

Additive Numbers

4 kyu

parseInt() reloaded

12,977BattleRattle4 Issues Reported

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