R impact and status on Exercism

15,414 students

About R

Practice

34 contributors

265 mentors

R Track Management

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

Students

15,414

Submissions

121,197

Mentoring Discussions

1,612

The R 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: 8126391045e1acb339564dc2ffce257718f91230 (Updates should be instant)

Next goal: Implement 136 practice exercises. Find out more.

82 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

9,700

19,306 (avg. 2.0)

6,593 (68.0%)

1 (0.0%)

Two Fer

4,518

25,071 (avg. 5.5)

2,158 (47.8%)

425 (9.4%)

Leap

2,411

9,186 (avg. 3.8)

1,722 (71.4%)

308 (12.8%)

Darts

770

2,648 (avg. 3.4)

564 (73.2%)

19 (2.5%)

Raindrops

1,799

10,027 (avg. 5.6)

1,443 (80.2%)

175 (9.7%)

Hamming

1,184

6,424 (avg. 5.4)

910 (76.9%)

158 (13.3%)

Phone Number

803

7,234 (avg. 9.0)

531 (66.1%)

69 (8.6%)

Anagram

594

4,090 (avg. 6.9)

401 (67.5%)

67 (11.3%)

Word Count

554

3,146 (avg. 5.7)

316 (57.0%)

41 (7.4%)

Rotational Cipher

334

1,749 (avg. 5.2)

246 (73.7%)

27 (8.1%)

Tournament

349

2,576 (avg. 7.4)

167 (47.9%)

23 (6.6%)

Difference of Squares

655

1,441 (avg. 2.2)

559 (85.3%)

46 (7.0%)

Grains

460

1,275 (avg. 2.8)

373 (81.1%)

38 (8.3%)

Space Age

390

1,859 (avg. 4.8)

305 (78.2%)

24 (6.2%)

Collatz Conjecture

315

1,619 (avg. 5.1)

242 (76.8%)

13 (4.1%)

Perfect Numbers

292

1,292 (avg. 4.4)

221 (75.7%)

27 (9.2%)

Sieve

229

868 (avg. 3.8)

163 (71.2%)

9 (3.9%)

Acronym

247

1,177 (avg. 4.8)

170 (68.8%)

12 (4.9%)

Fizz Buzz

268

1,062 (avg. 4.0)

216 (80.6%)

9 (3.4%)

Secret Handshake

193

564 (avg. 2.9)

136 (70.5%)

11 (5.7%)

RNA Transcription

323

843 (avg. 2.6)

246 (76.2%)

22 (6.8%)

ETL

120

616 (avg. 5.1)

77 (64.2%)

2 (1.7%)

Allergies

193

560 (avg. 2.9)

121 (62.7%)

3 (1.6%)

Luhn

175

852 (avg. 4.9)

122 (69.7%)

6 (3.4%)

Bob

258

1,193 (avg. 4.6)

184 (71.3%)

37 (14.3%)

Isogram

191

552 (avg. 2.9)

143 (74.9%)

4 (2.1%)

Pangram

166

470 (avg. 2.8)

130 (78.3%)

5 (3.0%)

Sum of Multiples

235

642 (avg. 2.7)

177 (75.3%)

26 (11.1%)

Beer Song

148

703 (avg. 4.8)

100 (67.6%)

1 (0.7%)

Prime Factors

163

464 (avg. 2.8)

119 (73.0%)

3 (1.8%)

Triangle

179

817 (avg. 4.6)

93 (52.0%)

3 (1.7%)

Nucleotide Count

169

744 (avg. 4.4)

119 (70.4%)

4 (2.4%)

Scrabble Score

158

414 (avg. 2.6)

120 (75.9%)

4 (2.5%)

Diamond

124

646 (avg. 5.2)

77 (62.1%)

2 (1.6%)

Largest Series Product

169

712 (avg. 4.2)

122 (72.2%)

8 (4.7%)

Pascal's Triangle

166

691 (avg. 4.2)

101 (60.8%)

7 (4.2%)

Crypto Square

178

1,940 (avg. 10.9)

101 (56.7%)

5 (2.8%)

Saddle Points

368 (avg. 4.4)

64 (76.2%)

2 (2.4%)

Complex Numbers

28 (avg. 2.3)

6 (50.0%)

0 (0.0%)

Armstrong Numbers

257 (avg. 3.2)

70 (87.5%)

2 (2.5%)

Queen Attack

289 (avg. 4.4)

46 (70.8%)

0 (0.0%)

Pythagorean Triplet

236 (avg. 5.4)

34 (77.3%)

1 (2.3%)

Reverse String

234 (avg. 3.1)

63 (82.9%)

2 (2.6%)

Roman Numerals

158 (avg. 3.0)

43 (82.7%)

1 (1.9%)

Protein Translation

446 (avg. 9.3)

34 (70.8%)

0 (0.0%)

Eliud's Eggs

74 (avg. 1.8)

38 (92.7%)

0 (0.0%)

All Your Base

595 (avg. 9.3)

46 (71.9%)

0 (0.0%)

Robot Simulator

120 (avg. 3.1)

23 (59.0%)

0 (0.0%)

Series

65 (avg. 3.3)

19 (95.0%)

0 (0.0%)

Conway's Game of Life

88 (avg. 5.5)

15 (93.8%)

0 (0.0%)

Gigasecond

28 (avg. 1.6)

14 (82.4%)

0 (0.0%)

Square Root

33 (avg. 1.7)

16 (84.2%)

0 (0.0%)

Knapsack

68 (avg. 4.9)

12 (85.7%)

0 (0.0%)

High Scores

60 (avg. 3.8)

14 (87.5%)

0 (0.0%)

ISBN Verifier

111 (avg. 6.9)

12 (75.0%)

0 (0.0%)

Kindergarten Garden

63 (avg. 4.5)

11 (78.6%)

0 (0.0%)

Atbash Cipher

73 (avg. 5.6)

11 (84.6%)

0 (0.0%)

Rail Fence Cipher

234 (avg. 19.5)

9 (75.0%)

0 (0.0%)

Flatten Array

44 (avg. 3.1)

14 (100.0%)

0 (0.0%)

Matching Brackets

99 (avg. 7.1)

13 (92.9%)

0 (0.0%)

Matrix

138 (avg. 8.6)

12 (75.0%)

0 (0.0%)

Resistor Color

39 (avg. 2.8)

13 (92.9%)

0 (0.0%)

Resistor Color Duo

36 (avg. 3.0)

12 (100.0%)

0 (0.0%)

Simple Cipher

155 (avg. 11.9)

11 (84.6%)

0 (0.0%)

Strain

97 (avg. 8.1)

11 (91.7%)

0 (0.0%)

Proverb

36 (avg. 3.0)

9 (75.0%)

0 (0.0%)

Zebra Puzzle

81 (avg. 5.4)

7 (46.7%)

0 (0.0%)

Twelve Days

60 (avg. 4.6)

10 (76.9%)

0 (0.0%)

House

62 (avg. 5.6)

9 (81.8%)

0 (0.0%)

Run-Length Encoding

109 (avg. 6.8)

8 (50.0%)

0 (0.0%)

List Ops

119 (avg. 11.9)

6 (60.0%)

0 (0.0%)

D&D Character

161 (avg. 16.1)

10 (100.0%)

0 (0.0%)

Binary Search

36 (avg. 2.8)

11 (84.6%)

0 (0.0%)

Robot Name

55 (avg. 3.2)

10 (58.8%)

0 (0.0%)

Food Chain

224 (avg. 14.9)

9 (60.0%)

0 (0.0%)

Clock

138 (avg. 9.2)

12 (80.0%)

0 (0.0%)

Nth Prime

145 (avg. 8.1)

13 (72.2%)

0 (0.0%)

Killer Sudoku Helper

17 (avg. 1.7)

6 (60.0%)

0 (0.0%)

Change

40 (avg. 4.0)

5 (50.0%)

0 (0.0%)

Pig Latin

79 (avg. 11.3)

6 (85.7%)

0 (0.0%)

Sublist

34 (avg. 4.9)

4 (57.1%)

0 (0.0%)

Resistor Color Trio

61 (avg. 6.1)

8 (80.0%)

0 (0.0%)

54 unimplemented practice exercises

Affine Cipher

Alphametics

Baffling Birthdays

Bank Account

Binary Search Tree

Book Store

Bottle Song

Bowling

Circular Buffer

Connect

Custom Set

Dominoes

DOT DSL

Error Handling

Forth

Go Counting

Grade School

Grep

Hangman

Intergalactic Transmission

Ledger

Lens Person

Linked List

Markdown

Meetup

Micro Blog

Minesweeper

OCR Numbers

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Poker

POV

Rational Numbers

React

Rectangles

Relative Distance

REST API

Satellite

Say

SGF Parsing

Simple Linked List

Spiral Matrix

Split-Second Stopwatch

State of Tic-Tac-Toe

Swift Scheduling

Transpose

Tree Building

Two Bucket

Variable Length Quantity

Word Search

Wordy

Yacht

Zipper

Programming Tags

Learn More

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

0 tags

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: 9d0baa70733051955c3e5841f9227240b711270b (Takes up to 10 mins to deploy)

Next goal: Get Test Runners to Version 2. R is currently utilising a Version 1 Test Runner. Find out more.

Total Test Runner Runs

118,416

Test Run Pass Rate

21.7% (25713)

Test Run Fail Rate

77.2% (91435)

Test Run Error Rate

1.1% (1268)

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

Next goal: Build an Analyzer. Find out more.

Volunteers

jonmcalder

2,886

shanedrabing

1,982

ErikSchierboom

1,891

+ 75 more

We 💙 our volunteers

Exercism relies on open-source volunteers to build our language tracks and mentor students.

Become an Exercism Volunteer

Language Tracks

Coding Fundamentals

Front-end Fundamentals

Your Journey

Exercism Perks

Community Videos

Brief Introduction Series

Interviews & Stories

Discord

Forum

Getting started

Mentoring

Docs

Contributors

Donate

About Exercism

Our Impact

Insiders

R Track Management

The R track needs attention ⚠️

Practice Exercises

Programming Tags

Test Runner

Representer

Analyzer

We 💙 our volunteers