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Raku
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Raku Track Management

This page provides the Exercism community with the information and tools needed to manage the Raku track.

Students
912
Submissions
26,884
Mentoring Discussions
302

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Practice Exercises

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Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Synced primary repo: 37a5b0248d715a25d9685bf5b52d1f911f8c638a (Updates should be instant)

Next goal: Implement 129 practice exercises. Find out more.
69 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
546
1,070 (avg. 2.0)
423 (77.5%)
0 (0.0%)
Leap Leap
277
1,025 (avg. 3.7)
229 (82.7%)
73 (26.4%)
Bob Bob
193
1,601 (avg. 8.3)
127 (65.8%)
40 (20.7%)
Nucleotide Count Nucleotide Count
102
825 (avg. 8.1)
73 (71.6%)
23 (22.5%)
Pangram Pangram
84
583 (avg. 6.9)
70 (83.3%)
18 (21.4%)
Clock Clock
62
579 (avg. 9.3)
48 (77.4%)
14 (22.6%)
Raindrops Raindrops
85
553 (avg. 6.5)
77 (90.6%)
12 (14.1%)
Phone Number Phone Number
59
738 (avg. 12.5)
46 (78.0%)
11 (18.6%)
Allergies Allergies
48
434 (avg. 9.0)
37 (77.1%)
7 (14.6%)
All Your Base All Your Base
35
1,114 (avg. 31.8)
28 (80.0%)
7 (20.0%)
Robot Name Robot Name
38
362 (avg. 9.5)
30 (78.9%)
5 (13.2%)
Two Fer Two Fer
142
255 (avg. 1.8)
122 (85.9%)
9 (6.3%)
Luhn Luhn
79
1,273 (avg. 16.1)
65 (82.3%)
10 (12.7%)
RNA Transcription RNA Transcription
54
221 (avg. 4.1)
50 (92.6%)
3 (5.6%)
Hamming Hamming
56
293 (avg. 5.2)
49 (87.5%)
4 (7.1%)
Anagram Anagram
44
415 (avg. 9.4)
39 (88.6%)
5 (11.4%)
Word Count Word Count
46
519 (avg. 11.3)
42 (91.3%)
5 (10.9%)
ETL ETL
40
1,028 (avg. 25.7)
36 (90.0%)
5 (12.5%)
Meetup Meetup
24
806 (avg. 33.6)
18 (75.0%)
1 (4.2%)
Accumulate Accumulate
63
341 (avg. 5.4)
55 (87.3%)
5 (7.9%)
Acronym Acronym
48
759 (avg. 15.8)
38 (79.2%)
5 (10.4%)
Grains Grains
68
297 (avg. 4.4)
63 (92.6%)
4 (5.9%)
Flatten Array Flatten Array
38
758 (avg. 19.9)
31 (81.6%)
6 (15.8%)
Grade School Grade School
32
1,064 (avg. 33.3)
25 (78.1%)
3 (9.4%)
Space Age Space Age
41
234 (avg. 5.7)
31 (75.6%)
2 (4.9%)
Atbash Cipher Atbash Cipher
65
538 (avg. 8.3)
52 (80.0%)
6 (9.2%)
Roman Numerals Roman Numerals
28
365 (avg. 13.0)
23 (82.1%)
3 (10.7%)
Scrabble Score Scrabble Score
55
335 (avg. 6.1)
48 (87.3%)
5 (9.1%)
Linked List Linked List
29
110 (avg. 3.8)
19 (65.5%)
3 (10.3%)
Wordy Wordy
50
296 (avg. 5.9)
34 (68.0%)
5 (10.0%)
Binary Search Tree Binary Search Tree
8
126 (avg. 15.8)
3 (37.5%)
0 (0.0%)
Collatz Conjecture Collatz Conjecture
18
381 (avg. 21.2)
15 (83.3%)
1 (5.6%)
Crypto Square Crypto Square
9
412 (avg. 45.8)
6 (66.7%)
2 (22.2%)
Armstrong Numbers Armstrong Numbers
14
117 (avg. 8.4)
12 (85.7%)
0 (0.0%)
Difference of Squares Difference of Squares
16
168 (avg. 10.5)
15 (93.8%)
0 (0.0%)
Affine Cipher Affine Cipher
9
499 (avg. 55.4)
5 (55.6%)
0 (0.0%)
Bottle Song Bottle Song
9
330 (avg. 36.7)
6 (66.7%)
1 (11.1%)
Binary Search Binary Search
8
202 (avg. 25.3)
6 (75.0%)
0 (0.0%)
Isogram Isogram
11
148 (avg. 13.5)
9 (81.8%)
1 (9.1%)
ISBN Verifier ISBN Verifier
8
781 (avg. 97.6)
6 (75.0%)
4 (50.0%)
Darts Darts
37
307 (avg. 8.3)
34 (91.9%)
1 (2.7%)
Gigasecond Gigasecond
35
185 (avg. 5.3)
30 (85.7%)
0 (0.0%)
Series Series
34
257 (avg. 7.6)
32 (94.1%)
1 (2.9%)
Pascal's Triangle Pascal's Triangle
5
37 (avg. 7.4)
3 (60.0%)
0 (0.0%)
Queen Attack Queen Attack
7
248 (avg. 35.4)
6 (85.7%)
0 (0.0%)
Sum of Multiples Sum of Multiples
7
53 (avg. 7.6)
6 (85.7%)
0 (0.0%)
Largest Series Product Largest Series Product
5
35 (avg. 7.0)
4 (80.0%)
0 (0.0%)
Triangle Triangle
5
18 (avg. 3.6)
4 (80.0%)
0 (0.0%)
Prime Factors Prime Factors
6
174 (avg. 29.0)
5 (83.3%)
0 (0.0%)
Sieve Sieve
6
126 (avg. 21.0)
5 (83.3%)
0 (0.0%)
House House
4
161 (avg. 40.3)
1 (25.0%)
1 (25.0%)
Secret Handshake Secret Handshake
4
39 (avg. 9.8)
3 (75.0%)
0 (0.0%)
Sublist Sublist
4
95 (avg. 23.8)
2 (50.0%)
0 (0.0%)
Matching Brackets Matching Brackets
5
122 (avg. 24.4)
4 (80.0%)
0 (0.0%)
Reverse String Reverse String
12
20 (avg. 1.7)
10 (83.3%)
0 (0.0%)
Killer Sudoku Helper Killer Sudoku Helper
4
70 (avg. 17.5)
2 (50.0%)
0 (0.0%)
Pythagorean Triplet Pythagorean Triplet
6
103 (avg. 17.2)
4 (66.7%)
0 (0.0%)
Transpose Transpose
4
48 (avg. 12.0)
2 (50.0%)
0 (0.0%)
Matrix Matrix
4
20 (avg. 5.0)
2 (50.0%)
0 (0.0%)
Book Store Book Store
5
5 (avg. 1.0)
0 (0.0%)
0 (0.0%)
Diamond Diamond
5
222 (avg. 44.4)
2 (40.0%)
1 (20.0%)
Square Root Square Root
7
110 (avg. 15.7)
4 (57.1%)
0 (0.0%)
Resistor Color Resistor Color
5
24 (avg. 4.8)
4 (80.0%)
0 (0.0%)
Strain Strain
5
21 (avg. 4.2)
4 (80.0%)
0 (0.0%)
Yacht Yacht
7
142 (avg. 20.3)
3 (42.9%)
0 (0.0%)
Resistor Color Duo Resistor Color Duo
5
50 (avg. 10.0)
3 (60.0%)
0 (0.0%)
Resistor Color Trio Resistor Color Trio
4
64 (avg. 16.0)
2 (50.0%)
0 (0.0%)
Perfect Numbers Perfect Numbers
6
67 (avg. 11.2)
4 (66.7%)
0 (0.0%)
Rotational Cipher Rotational Cipher
5
39 (avg. 7.8)
2 (40.0%)
0 (0.0%)
3 deprecated practice exercises
Started
Attempts
Completions
Mentoring requests
Beer Song Beer Song
8
210 (avg. 26.3)
7 (87.5%)
0 (0.0%)
Binary Binary
8
7 (avg. 0.9)
7 (87.5%)
0 (0.0%)
Trinary Trinary
3
2 (avg. 0.7)
2 (66.7%)
0 (0.0%)
60 unimplemented practice exercises
Alphametics Alphametics
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Bank Account Bank Account
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Bowling Bowling
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Change Change
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Circular Buffer Circular Buffer
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Complex Numbers Complex Numbers
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Connect Connect
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Custom Set Custom Set
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D&D Character D&D Character
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DOT DSL DOT DSL
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Dominoes Dominoes
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Eliud's Eggs Eliud's Eggs
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Error Handling Error Handling
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Food Chain Food Chain
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Forth Forth
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Go Counting Go Counting
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Grep Grep
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Hangman Hangman
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High Scores High Scores
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Kindergarten Garden Kindergarten Garden
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Knapsack Knapsack
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Ledger Ledger
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Lens Person Lens Person
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List Ops List Ops
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Markdown Markdown
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Micro Blog Micro Blog
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Minesweeper Minesweeper
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Nth Prime Nth Prime
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OCR Numbers OCR Numbers
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POV POV
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PaaS I/O PaaS I/O
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Palindrome Products Palindrome Products
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Parallel Letter Frequency Parallel Letter Frequency
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Pig Latin Pig Latin
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Poker Poker
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Protein Translation Protein Translation
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Proverb Proverb
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REST API REST API
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Rail Fence Cipher Rail Fence Cipher
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Rational Numbers Rational Numbers
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React React
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Rectangles Rectangles
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Robot Simulator Robot Simulator
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Run-Length Encoding Run-Length Encoding
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SGF Parsing SGF Parsing
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Saddle Points Saddle Points
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Satellite Satellite
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Say Say
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Simple Cipher Simple Cipher
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Simple Linked List Simple Linked List
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Spiral Matrix Spiral Matrix
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State of Tic-Tac-Toe State of Tic-Tac-Toe
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Tournament Tournament
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Tree Building Tree Building
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Twelve Days Twelve Days
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Two Bucket Two Bucket
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Variable Length Quantity Variable Length Quantity
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Word Search Word Search
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Zebra Puzzle Zebra Puzzle
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Zipper Zipper
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Programming Tags

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Help manage the tags used to group, filter and recommend solutions, approaches and articles.

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Test Runner

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Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: 9b180ac0d289f70c8557f67c837f6001476b47bb (Takes up to 10 mins to deploy)

Total Test Runner Runs
25,020
Test Run Pass Rate
25.9% (6483)
Test Run Fail Rate
59.4% (14874)
Test Run Error Rate
14.6% (3663)

Representer

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Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Next goal: Build a Representer. Find out more.

Analyzer

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Build an Analyzer for Raku: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.