8th Track Management

This page provides the Exercism community with the information and tools needed to manage the 8th track.

Students
3,198
Submissions
10,903
Mentoring Discussions
44

The 8th track needs attention ⚠️

Building

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: 8f29446886180df8963dd04bbf4d5f1995e1bcd7 (Updates should be instant)

Next goal: Implement 130 practice exercises. Find out more.
63 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
2,463
5,904 (avg. 2.4)
413 (16.8%)
0 (0.0%)
Two Fer Two Fer
272
1,700 (avg. 6.3)
63 (23.2%)
8 (2.9%)
Gigasecond Gigasecond
73
161 (avg. 2.2)
39 (53.4%)
1 (1.4%)
Leap Leap
73
446 (avg. 6.1)
40 (54.8%)
1 (1.4%)
Triangle Triangle
36
404 (avg. 11.2)
24 (66.7%)
2 (5.6%)
Trinary (Base-3) Numbers Trinary (Base-3) Numbers
27
235 (avg. 8.7)
22 (81.5%)
0 (0.0%)
Darts Darts
23
147 (avg. 6.4)
21 (91.3%)
3 (13.0%)
Resistor Color Resistor Color
18
47 (avg. 2.6)
14 (77.8%)
3 (16.7%)
Bob Bob
19
99 (avg. 5.2)
15 (78.9%)
0 (0.0%)
Hamming Hamming
25
137 (avg. 5.5)
17 (68.0%)
1 (4.0%)
Raindrops Raindrops
20
46 (avg. 2.3)
13 (65.0%)
0 (0.0%)
Armstrong Numbers Armstrong Numbers
18
40 (avg. 2.2)
14 (77.8%)
0 (0.0%)
Isogram Isogram
16
22 (avg. 1.4)
13 (81.3%)
1 (6.3%)
Word Count Word Count
16
55 (avg. 3.4)
12 (75.0%)
0 (0.0%)
Acronym Acronym
19
62 (avg. 3.3)
13 (68.4%)
1 (5.3%)
Luhn Credit Card Number Checker Luhn Credit Card Number Checker
21
195 (avg. 9.3)
16 (76.2%)
1 (4.8%)
Collatz Conjecture Collatz Conjecture
19
53 (avg. 2.8)
18 (94.7%)
1 (5.3%)
Series Series
18
197 (avg. 10.9)
16 (88.9%)
2 (11.1%)
Pangram Pangram
16
49 (avg. 3.1)
13 (81.3%)
1 (6.3%)
Atbash Cipher Atbash Cipher
16
160 (avg. 10.0)
13 (81.3%)
3 (18.8%)
Yacht Yacht
14
156 (avg. 11.1)
13 (92.9%)
2 (14.3%)
Roman Numerals Roman Numerals
15
33 (avg. 2.2)
12 (80.0%)
1 (6.7%)
Reverse string Reverse string
24
98 (avg. 4.1)
20 (83.3%)
2 (8.3%)
Affine Cipher Affine Cipher
13
40 (avg. 3.1)
11 (84.6%)
0 (0.0%)
Pythagorean Triplet Pythagorean Triplet
13
94 (avg. 7.2)
8 (61.5%)
0 (0.0%)
Sieve Sieve
10
38 (avg. 3.8)
6 (60.0%)
0 (0.0%)
ETL ETL
7
23 (avg. 3.3)
6 (85.7%)
0 (0.0%)
Eliud's Eggs Eliud's Eggs
10
33 (avg. 3.3)
9 (90.0%)
1 (10.0%)
Difference of Squares Difference of Squares
4
27 (avg. 6.8)
3 (75.0%)
2 (50.0%)
Matching Brackets Matching Brackets
5
91 (avg. 18.2)
4 (80.0%)
3 (60.0%)
Grains Grains
4
2 (avg. 0.5)
2 (50.0%)
0 (0.0%)
RNA Transcription RNA Transcription
4
8 (avg. 2.0)
2 (50.0%)
1 (25.0%)
Scrabble Score Scrabble Score
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Sum of Multiples Sum of Multiples
3
14 (avg. 4.7)
2 (66.7%)
1 (33.3%)
High Scores High Scores
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Largest Series Product Largest Series Product
3
1 (avg. 0.3)
1 (33.3%)
0 (0.0%)
Pascal's Triangle Pascal's Triangle
4
8 (avg. 2.0)
2 (50.0%)
1 (25.0%)
Perfect Numbers Perfect Numbers
3
2 (avg. 0.7)
1 (33.3%)
0 (0.0%)
Rotational Cipher Rotational Cipher
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Flatten Array Flatten Array
4
5 (avg. 1.3)
2 (50.0%)
1 (25.0%)
Space Age Space Age
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Square Root Square Root
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Protein Translation Protein Translation
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Strain Strain
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Nucleotide Count Nucleotide Count
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Matrix Matrix
3
1 (avg. 0.3)
1 (33.3%)
0 (0.0%)
All Your Base All Your Base
4
1 (avg. 0.3)
1 (25.0%)
0 (0.0%)
Proverb Proverb
3
1 (avg. 0.3)
1 (33.3%)
0 (0.0%)
Parallel Letter Frequency Parallel Letter Frequency
4
1 (avg. 0.3)
1 (25.0%)
0 (0.0%)
Allergies Allergies
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
D&D Character D&D Character
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Meetup Meetup
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Food Chain Food Chain
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Binary Search Binary Search
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
List Ops List Ops
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Secret Handshake Secret Handshake
3
3 (avg. 1.0)
2 (66.7%)
0 (0.0%)
Anagram Anagram
3
4 (avg. 1.3)
2 (66.7%)
0 (0.0%)
Spiral Matrix Spiral Matrix
3
10 (avg. 3.3)
1 (33.3%)
0 (0.0%)
Kindergarten Garden Kindergarten Garden
2
1 (avg. 0.5)
1 (50.0%)
0 (0.0%)
Diamond Diamond
4
4 (avg. 1.0)
1 (25.0%)
1 (25.0%)
Phone Number Phone Number
4
19 (avg. 4.8)
2 (50.0%)
1 (25.0%)
Knapsack Knapsack
3
2 (avg. 0.7)
1 (33.3%)
0 (0.0%)
Circular Buffer Circular Buffer
6
10 (avg. 1.7)
1 (16.7%)
0 (0.0%)
67 unimplemented practice exercises
Alphametics Alphametics
Bank Account Bank Account
Binary Search Tree Binary Search Tree
Book Store Book Store
Bottle Song Bottle Song
Bowling Bowling
Change Change
Clock Clock
Complex Numbers Complex Numbers
Connect Connect
Conway's Game of Life Conway's Game of Life
Crypto Square Crypto Square
Custom Set Custom Set
Dominoes Dominoes
DOT DSL DOT DSL
Error Handling Error Handling
Forth Forth
Go Counting Go Counting
Grade School Grade School
Grep Grep
Hangman Hangman
House House
ISBN Verifier ISBN Verifier
Killer Sudoku Helper Killer Sudoku Helper
Ledger Ledger
Lens Person Lens Person
Linked List Linked List
Markdown Markdown
Micro Blog Micro Blog
Minesweeper Minesweeper
Nth Prime Nth Prime
OCR Numbers OCR Numbers
PaaS I/O PaaS I/O
Palindrome Products Palindrome Products
Pig Latin Pig Latin
Poker Poker
POV POV
Prime Factors Prime Factors
Queen Attack Queen Attack
Rail Fence Cipher Rail Fence Cipher
Rational Numbers Rational Numbers
React React
Rectangles Rectangles
Resistor Color Duo Resistor Color Duo
Resistor Color Trio Resistor Color Trio
REST API REST API
Robot Name Robot Name
Robot Simulator Robot Simulator
Run-Length Encoding Run-Length Encoding
Saddle Points Saddle Points
Satellite Satellite
Say Say
SGF Parsing SGF Parsing
Simple Cipher Simple Cipher
Simple Linked List Simple Linked List
State of Tic-Tac-Toe State of Tic-Tac-Toe
Sublist Sublist
Tournament Tournament
Transpose Transpose
Tree Building Tree Building
Twelve Days Twelve Days
Two Bucket Two Bucket
Variable Length Quantity Variable Length Quantity
Word Search Word Search
Wordy Wordy
Zebra Puzzle Zebra Puzzle
Zipper Zipper

Programming Tags

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

0 tags

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: 46b3a4aa50128193c598813210ef63325322ee5d (Takes up to 10 mins to deploy)

Next goal: Get Test Runners to Version 2. 8th is currently utilising a Version 1 Test Runner. Find out more.
Total Test Runner Runs
10,863
Test Run Pass Rate
14.4% (1562)
Test Run Fail Rate
25.9% (2816)
Test Run Error Rate
59.7% (6485)

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 8th: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.