Red impact and status on Exercism

Red

448 students

About Red

Practice

20 contributors

40 mentors

Red Track Management

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

Students

448

Submissions

13,444

Mentoring Discussions

The Red track needs attention ⚠️

Building

Practice Exercises

Learn More

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: 689d10284b75bf64533c12912bbdcaa537a90845 (Updates should be instant)

Next goal: Implement 138 practice exercises. Find out more.

52 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

449

910 (avg. 2.0)

337 (75.1%)

0 (0.0%)

Acronym

125 (avg. 8.3)

10 (66.7%)

0 (0.0%)

Allergies

722 (avg. 11.6)

19 (30.6%)

1 (1.6%)

Anagram

262 (avg. 10.5)

17 (68.0%)

0 (0.0%)

Armstrong Numbers

134 (avg. 7.1)

17 (89.5%)

0 (0.0%)

Atbash Cipher

150 (avg. 12.5)

10 (83.3%)

0 (0.0%)

Binary Search

307 (avg. 8.8)

16 (45.7%)

1 (2.9%)

Bob

92 (avg. 9.2)

8 (80.0%)

0 (0.0%)

Collatz Conjecture

229 (avg. 10.0)

21 (91.3%)

0 (0.0%)

Difference of Squares

213 (avg. 9.3)

19 (82.6%)

0 (0.0%)

Eliud's Eggs

78 (avg. 4.3)

17 (94.4%)

0 (0.0%)

ETL

26 (avg. 2.4)

10 (90.9%)

0 (0.0%)

Gigasecond

35 (avg. 2.5)

13 (92.9%)

0 (0.0%)

Grains

99 (avg. 5.8)

15 (88.2%)

0 (0.0%)

Hamming

124 (avg. 7.8)

15 (93.8%)

0 (0.0%)

Isogram

78 (avg. 5.6)

11 (78.6%)

1 (7.1%)

Leap

187 (avg. 5.8)

26 (81.3%)

0 (0.0%)

Nth Prime

26 (avg. 3.7)

6 (85.7%)

0 (0.0%)

Nucleotide Count

128 (avg. 8.0)

13 (81.3%)

0 (0.0%)

Pangram

134 (avg. 9.6)

13 (92.9%)

0 (0.0%)

Phone Number

45 (avg. 6.4)

5 (71.4%)

0 (0.0%)

Protein Translation

613 (avg. 9.0)

51 (75.0%)

2 (2.9%)

Raindrops

394 (avg. 5.7)

60 (87.0%)

4 (5.8%)

Resistor Color

391 (avg. 4.6)

73 (85.9%)

1 (1.2%)

Reverse String

115

923 (avg. 8.0)

85 (73.9%)

2 (1.7%)

RNA Transcription

48 (avg. 3.7)

11 (84.6%)

0 (0.0%)

Scrabble Score

78 (avg. 5.2)

13 (86.7%)

0 (0.0%)

Secret Handshake

115 (avg. 8.2)

12 (85.7%)

0 (0.0%)

Space Age

405 (avg. 6.2)

57 (87.7%)

0 (0.0%)

Square Root

112 (avg. 8.6)

11 (84.6%)

0 (0.0%)

Triangle

93 (avg. 6.2)

13 (86.7%)

0 (0.0%)

Two Fer

164

1,018 (avg. 6.2)

100 (61.0%)

5 (3.0%)

Yacht

131 (avg. 13.1)

9 (90.0%)

0 (0.0%)

Bottle Song

29 (avg. 4.8)

5 (83.3%)

0 (0.0%)

Camicia

0 (avg. 0.0)

0 (0.0%)

Conway's Game of Life

0 (avg. 0.0)

0 (0.0%)

D&D Character

127 (avg. 9.1)

12 (85.7%)

0 (0.0%)

Darts

189 (avg. 4.4)

37 (86.0%)

1 (2.3%)

Flower Field

3 (avg. 1.0)

2 (66.7%)

0 (0.0%)

High Scores

98 (avg. 3.9)

17 (68.0%)

0 (0.0%)

Largest Series Product

634 (avg. 22.6)

25 (89.3%)

1 (3.6%)

Matching Brackets

37 (avg. 6.2)

5 (83.3%)

0 (0.0%)

Resistor Color Duo

210 (avg. 5.5)

36 (94.7%)

0 (0.0%)

Resistor Color Trio

487 (avg. 15.7)

27 (87.1%)

1 (3.2%)

Roman Numerals

473 (avg. 11.8)

32 (80.0%)

0 (0.0%)

Rotational Cipher

443 (avg. 12.3)

26 (72.2%)

1 (2.8%)

Run-Length Encoding

178 (avg. 8.5)

16 (76.2%)

0 (0.0%)

SGF Parsing

696 (avg. 33.1)

11 (52.4%)

1 (4.8%)

Simple Linked List

131 (avg. 5.7)

16 (69.6%)

0 (0.0%)

Bowling

424 (avg. 22.3)

12 (63.2%)

1 (5.3%)

Circular Buffer

363 (avg. 15.8)

15 (65.2%)

0 (0.0%)

POV

497 (avg. 26.2)

10 (52.6%)

0 (0.0%)

86 unimplemented practice exercises

Affine Cipher

All Your Base

Alphametics

Baffling Birthdays

Bank Account

Binary Search Tree

Book Store

Change

Clock

Complex Numbers

Connect

Crypto Square

Custom Set

Diamond

Dominoes

DOT DSL

Error Handling

Flatten Array

Food Chain

Forth

Go Counting

Grade School

Grep

House

Intergalactic Transmission

ISBN Verifier

Killer Sudoku Helper

Kindergarten Garden

Knapsack

Ledger

Lens Person

Line Up

Linked List

List Ops

Luhn

Markdown

Matrix

Meetup

Micro Blog

OCR Numbers

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Pascal's Triangle

Perfect Numbers

Piecing It Together

Pig Latin

Poker

Prime Factors

Prism

Proverb

Pythagorean Triplet

Queen Attack

Rail Fence Cipher

Rational Numbers

React

Rectangles

Relative Distance

REST API

Robot Name

Robot Simulator

Saddle Points

Satellite

Save the Cow

Say

Series

Sieve

Simple Cipher

Spiral Matrix

Split-Second Stopwatch

State of Tic-Tac-Toe

Strain

Sublist

Sum of Multiples

Swift Scheduling

Tournament

Transpose

Tree Building

Twelve Days

Two Bucket

Variable Length Quantity

Word Count

Word Search

Wordy

Zebra Puzzle

Zipper

Test Runner

Learn More

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

Current version: 163340d4ab99867def2e0e93e35c093e63540681 (Takes up to 10 mins to deploy)

Total Test Runner Runs

13,384

Test Run Pass Rate

19.4% (2597)

Test Run Fail Rate

69.8% (9344)

Test Run Error Rate

10.8% (1443)

Representer

Learn More

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

Learn More

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.

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