Red Track Management

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

Students
297
Submissions
6,336
Mentoring Discussions
13

The Red 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: 8160b4dcb922124f6ccee885baad8ea9eb217bbe (Updates should be instant)

Next goal: Implement at least 30 practice exercises. Find out more.
26 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
267
424 (avg. 1.6)
213 (79.8%)
0 (0.0%)
Leap Leap
2
10 (avg. 5.0)
0 (0.0%)
0 (0.0%)
Two Fer Two Fer
149
973 (avg. 6.5)
89 (59.7%)
5 (3.4%)
Reverse String Reverse String
97
855 (avg. 8.8)
71 (73.2%)
2 (2.1%)
Resistor Color Resistor Color
72
345 (avg. 4.8)
61 (84.7%)
1 (1.4%)
Eliud's Eggs Eliud's Eggs
1
0 (avg. 0.0)
0 (0.0%)
0 (0.0%)
Square Root Square Root
1
0 (avg. 0.0)
0 (0.0%)
0 (0.0%)
Protein Translation Protein Translation
56
529 (avg. 9.4)
40 (71.4%)
1 (1.8%)
Space Age Space Age
54
354 (avg. 6.6)
48 (88.9%)
0 (0.0%)
Raindrops Raindrops
55
332 (avg. 6.0)
48 (87.3%)
4 (7.3%)
Grains Grains
1
0 (avg. 0.0)
0 (0.0%)
0 (0.0%)
Triangle Triangle
1
0 (avg. 0.0)
0 (0.0%)
0 (0.0%)
Binary Search Binary Search
1
0 (avg. 0.0)
0 (0.0%)
0 (0.0%)
Resistor Color Duo Resistor Color Duo
28
173 (avg. 6.2)
26 (92.9%)
0 (0.0%)
Darts Darts
32
130 (avg. 4.1)
27 (84.4%)
1 (3.1%)
Rotational Cipher Rotational Cipher
25
274 (avg. 11.0)
17 (68.0%)
1 (4.0%)
Roman Numerals Roman Numerals
29
276 (avg. 9.5)
22 (75.9%)
0 (0.0%)
Resistor Color Trio Resistor Color Trio
21
375 (avg. 17.9)
19 (90.5%)
1 (4.8%)
Largest Series Product Largest Series Product
17
473 (avg. 27.8)
15 (88.2%)
1 (5.9%)
SGF Parsing SGF Parsing
14
146 (avg. 10.4)
6 (42.9%)
1 (7.1%)
High Scores High Scores
13
45 (avg. 3.5)
9 (69.2%)
0 (0.0%)
Run-Length Encoding Run-Length Encoding
13
59 (avg. 4.5)
9 (69.2%)
0 (0.0%)
Simple Linked List Simple Linked List
12
13 (avg. 1.1)
8 (66.7%)
0 (0.0%)
Bowling Bowling
11
325 (avg. 29.5)
5 (45.5%)
1 (9.1%)
POV POV
10
135 (avg. 13.5)
5 (50.0%)
0 (0.0%)
Circular Buffer Circular Buffer
14
90 (avg. 6.4)
9 (64.3%)
0 (0.0%)
102 unimplemented practice exercises
Acronym Acronym
Affine Cipher Affine Cipher
All Your Base All Your Base
Allergies Allergies
Alphametics Alphametics
Anagram Anagram
Armstrong Numbers Armstrong Numbers
Atbash Cipher Atbash Cipher
Bank Account Bank Account
Binary Search Tree Binary Search Tree
Bob Bob
Book Store Book Store
Bottle Song Bottle Song
Change Change
Clock Clock
Collatz Conjecture Collatz Conjecture
Complex Numbers Complex Numbers
Connect Connect
Crypto Square Crypto Square
Custom Set Custom Set
D&D Character D&D Character
DOT DSL DOT DSL
Diamond Diamond
Difference of Squares Difference of Squares
Dominoes Dominoes
ETL ETL
Error Handling Error Handling
Flatten Array Flatten Array
Food Chain Food Chain
Forth Forth
Gigasecond Gigasecond
Go Counting Go Counting
Grade School Grade School
Grep Grep
Hamming Hamming
Hangman Hangman
House House
ISBN Verifier ISBN Verifier
Isogram Isogram
Killer Sudoku Helper Killer Sudoku Helper
Kindergarten Garden Kindergarten Garden
Knapsack Knapsack
Ledger Ledger
Lens Person Lens Person
Linked List Linked List
List Ops List Ops
Luhn Luhn
Markdown Markdown
Matching Brackets Matching Brackets
Matrix Matrix
Meetup Meetup
Micro Blog Micro Blog
Minesweeper Minesweeper
Nth Prime Nth Prime
Nucleotide Count Nucleotide Count
OCR Numbers OCR Numbers
PaaS I/O PaaS I/O
Palindrome Products Palindrome Products
Pangram Pangram
Parallel Letter Frequency Parallel Letter Frequency
Pascal's Triangle Pascal's Triangle
Perfect Numbers Perfect Numbers
Phone Number Phone Number
Pig Latin Pig Latin
Poker Poker
Prime Factors Prime Factors
Proverb Proverb
Pythagorean Triplet Pythagorean Triplet
Queen Attack Queen Attack
REST API REST API
RNA Transcription RNA Transcription
Rail Fence Cipher Rail Fence Cipher
Rational Numbers Rational Numbers
React React
Rectangles Rectangles
Robot Name Robot Name
Robot Simulator Robot Simulator
Saddle Points Saddle Points
Satellite Satellite
Say Say
Scrabble Score Scrabble Score
Secret Handshake Secret Handshake
Series Series
Sieve Sieve
Simple Cipher Simple Cipher
Spiral Matrix Spiral Matrix
State of Tic-Tac-Toe State of Tic-Tac-Toe
Strain Strain
Sublist Sublist
Sum of Multiples Sum of Multiples
Tournament Tournament
Transpose Transpose
Tree Building Tree Building
Twelve Days Twelve Days
Two Bucket Two Bucket
Variable Length Quantity Variable Length Quantity
Word Count Word Count
Word Search Word Search
Wordy Wordy
Yacht Yacht
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: cf3322042a3a42317ec48397a054b0e1d2e5b2fd (Takes up to 10 mins to deploy)

Total Test Runner Runs
6,319
Test Run Pass Rate
20.2% (1278)
Test Run Fail Rate
69.9% (4420)
Test Run Error Rate
9.8% (621)

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

Next goal: Build an Analyzer. Find out more.