R impact and status on Exercism

13,015 students

About R

Practice

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251 mentors

R Track Management

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

Students

13,015

Submissions

87,388

Mentoring Discussions

1,522

The R 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: 7924628ffe3bfc01f3de199ab578fd223194cb2d (Updates should be instant)

Next goal: Implement at least 50 practice exercises. Find out more.

47 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

7,417

15,205 (avg. 2.1)

5,224 (70.4%)

1 (0.0%)

Two Fer

3,546

18,907 (avg. 5.3)

1,702 (48.0%)

396 (11.2%)

Leap

1,941

7,134 (avg. 3.7)

1,393 (71.8%)

298 (15.4%)

Darts

403

1,487 (avg. 3.7)

298 (73.9%)

15 (3.7%)

Raindrops

1,491

8,220 (avg. 5.5)

1,184 (79.4%)

168 (11.3%)

Hamming

955

5,062 (avg. 5.3)

729 (76.3%)

154 (16.1%)

Phone Number

605

5,010 (avg. 8.3)

397 (65.6%)

68 (11.2%)

Anagram

446

3,123 (avg. 7.0)

301 (67.5%)

63 (14.1%)

Word Count

404

1,921 (avg. 4.8)

239 (59.2%)

40 (9.9%)

Rotational Cipher

233

1,236 (avg. 5.3)

163 (70.0%)

26 (11.2%)

Tournament

241

1,478 (avg. 6.1)

116 (48.1%)

20 (8.3%)

Difference of Squares

488

1,005 (avg. 2.1)

399 (81.8%)

44 (9.0%)

Grains

366

924 (avg. 2.5)

294 (80.3%)

36 (9.8%)

Space Age

296

1,004 (avg. 3.4)

236 (79.7%)

22 (7.4%)

Collatz Conjecture

233

1,200 (avg. 5.2)

175 (75.1%)

10 (4.3%)

Perfect Numbers

237

931 (avg. 3.9)

182 (76.8%)

24 (10.1%)

Sieve

179

616 (avg. 3.4)

129 (72.1%)

8 (4.5%)

Acronym

200

925 (avg. 4.6)

137 (68.5%)

11 (5.5%)

Fizz Buzz

209

815 (avg. 3.9)

164 (78.5%)

8 (3.8%)

Secret Handshake

156

322 (avg. 2.1)

109 (69.9%)

10 (6.4%)

RNA Transcription

270

659 (avg. 2.4)

201 (74.4%)

21 (7.8%)

ETL

429 (avg. 5.2)

54 (65.1%)

1 (1.2%)

Allergies

147

338 (avg. 2.3)

94 (63.9%)

2 (1.4%)

Luhn

138

679 (avg. 4.9)

96 (69.6%)

4 (2.9%)

Bob

224

986 (avg. 4.4)

160 (71.4%)

36 (16.1%)

Isogram

147

331 (avg. 2.3)

116 (78.9%)

3 (2.0%)

Pangram

134

379 (avg. 2.8)

99 (73.9%)

3 (2.2%)

Sum of Multiples

193

495 (avg. 2.6)

148 (76.7%)

25 (13.0%)

Beer Song

120

462 (avg. 3.9)

81 (67.5%)

0 (0.0%)

Prime Factors

130

357 (avg. 2.7)

91 (70.0%)

1 (0.8%)

Triangle

140

579 (avg. 4.1)

74 (52.9%)

1 (0.7%)

Nucleotide Count

143

547 (avg. 3.8)

98 (68.5%)

3 (2.1%)

Scrabble Score

134

336 (avg. 2.5)

100 (74.6%)

3 (2.2%)

Diamond

103

531 (avg. 5.2)

60 (58.3%)

1 (1.0%)

Largest Series Product

146

600 (avg. 4.1)

103 (70.5%)

7 (4.8%)

Pascal's Triangle

146

587 (avg. 4.0)

86 (58.9%)

7 (4.8%)

Crypto Square

132

1,424 (avg. 10.8)

76 (57.6%)

5 (3.8%)

Saddle Points

209 (avg. 3.2)

47 (72.3%)

2 (3.1%)

Armstrong Numbers

173 (avg. 3.6)

44 (91.7%)

2 (4.2%)

Queen Attack

178 (avg. 4.1)

29 (67.4%)

0 (0.0%)

Pythagorean Triplet

78 (avg. 4.9)

10 (62.5%)

0 (0.0%)

Reverse String

121 (avg. 3.3)

29 (78.4%)

0 (0.0%)

Roman Numerals

69 (avg. 2.9)

19 (79.2%)

0 (0.0%)

Protein Translation

133 (avg. 7.4)

13 (72.2%)

0 (0.0%)

Eliud's Eggs

29 (avg. 2.2)

12 (92.3%)

0 (0.0%)

All Your Base

104 (avg. 8.7)

11 (91.7%)

0 (0.0%)

Robot Simulator

24 (avg. 2.7)

4 (44.4%)

0 (0.0%)

84 unimplemented practice exercises

Affine Cipher

Alphametics

Atbash Cipher

Bank Account

Binary Search

Binary Search Tree

Book Store

Bottle Song

Bowling

Change

Circular Buffer

Clock

Complex Numbers

Connect

Conway's Game of Life

Custom Set

D&D Character

Dominoes

DOT DSL

Error Handling

Flatten Array

Food Chain

Forth

Gigasecond

Go Counting

Grade School

Grep

Hangman

High Scores

House

ISBN Verifier

Killer Sudoku Helper

Kindergarten Garden

Knapsack

Ledger

Lens Person

Linked List

List Ops

Markdown

Matching Brackets

Matrix

Meetup

Micro Blog

Minesweeper

Nth Prime

OCR Numbers

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Pig Latin

Poker

POV

Proverb

Rail Fence Cipher

Rational Numbers

React

Rectangles

Resistor Color

Resistor Color Duo

Resistor Color Trio

REST API

Robot Name

Run-Length Encoding

Satellite

Say

Series

SGF Parsing

Simple Cipher

Simple Linked List

Spiral Matrix

Square Root

State of Tic-Tac-Toe

Strain

Sublist

Transpose

Tree Building

Twelve Days

Two Bucket

Variable Length Quantity

Word Search

Wordy

Yacht

Zebra Puzzle

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

Learn More

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

Current version: 8442f1f19dfc321c7ef7164e7bcbcc50dc362594 (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

84,695

Test Run Pass Rate

22.6% (19142)

Test Run Fail Rate

76.3% (64595)

Test Run Error Rate

1.1% (958)

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.

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