Clojure impact and status on Exercism

Clojure

19,426 students

About Clojure

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Practice

545 contributors

295 mentors

Clojure Track Management

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

Students

19,426

Submissions

559,772

Mentoring Discussions

7,663

The Clojure track needs attention ⚠️

Building

Clojure syllabus

Learn More

Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

Next goal: Create a complete syllabus with at least 20 concepts. Find out more.

12 concepts being taught

Basics

7,660 learnt

Vectors

3,570 learnt

Conditionals

4,631 learnt

Numbers

4,631 learnt

Floating-point Numbers

1,973 learnt

Booleans

2,515 learnt

Strings

2,527 learnt

Sequential Destructuring

1,285 learnt

Chars

745 learnt

Atoms

586 learnt

Closures

586 learnt

Lists

668 learnt

10 active learning exercises

Started

Attempts

Completions

Mentoring requests

Lucian's Luscious Lasagna

8,778

29,906 (avg. 3.4)

7,660 (87.3%)

49 (0.6%)

Bird Watcher

4,500

50,998 (avg. 11.3)

3,570 (79.3%)

139 (3.1%)

Cars, Assemble!

5,234

39,180 (avg. 7.5)

4,631 (88.5%)

108 (2.1%)

Interest is Interesting

2,505

38,088 (avg. 15.2)

1,973 (78.8%)

52 (2.1%)

Annalyn's Infiltration

2,766

17,699 (avg. 6.4)

2,515 (90.9%)

25 (0.9%)

Log Levels

2,962

26,517 (avg. 9.0)

2,527 (85.3%)

48 (1.6%)

Elyses Destructured Enchantments

1,388

15,577 (avg. 11.2)

1,285 (92.6%)

34 (2.4%)

Squeaky Clean

1,056

15,980 (avg. 15.1)

745 (70.5%)

26 (2.5%)

Coordinate Transformation

836

7,455 (avg. 8.9)

586 (70.1%)

19 (2.3%)

Card Games

825

11,331 (avg. 13.7)

668 (81.0%)

22 (2.7%)

1 deprecated learning exercises

Started

Attempts

Completions

Mentoring requests

Tracks on Tracks on Tracks

3,685

37,095 (avg. 10.1)

3,159 (85.7%)

70 (1.9%)

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: dd57c2859cf616f554cbeb840e3f85ddee97e690 (Updates should be instant)

Next goal: Implement 139 practice exercises. Find out more.

95 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

15,860

25,193 (avg. 1.6)

13,726 (86.5%)

9 (0.1%)

Two Fer

3,550

9,198 (avg. 2.6)

3,104 (87.4%)

952 (26.8%)

Leap

2,100

7,267 (avg. 3.5)

1,908 (90.9%)

78 (3.7%)

High Scores

229

921 (avg. 4.0)

210 (91.7%)

2 (0.9%)

Darts

248

858 (avg. 3.5)

214 (86.3%)

2 (0.8%)

Reverse String

2,793

5,855 (avg. 2.1)

2,376 (85.1%)

694 (24.8%)

RNA Transcription

2,651

6,560 (avg. 2.5)

2,483 (93.7%)

581 (21.9%)

Resistor Color

202

660 (avg. 3.3)

193 (95.5%)

1 (0.5%)

Hamming

1,523

4,178 (avg. 2.7)

1,395 (91.6%)

113 (7.4%)

Resistor Color Duo

185

689 (avg. 3.7)

169 (91.4%)

2 (1.1%)

Space Age

918

3,289 (avg. 3.6)

831 (90.5%)

26 (2.8%)

ETL

1,050

3,005 (avg. 2.9)

894 (85.1%)

37 (3.5%)

Triangle

971

4,792 (avg. 4.9)

889 (91.6%)

28 (2.9%)

Raindrops

1,056

3,946 (avg. 3.7)

957 (90.6%)

33 (3.1%)

Strain

528

1,313 (avg. 2.5)

462 (87.5%)

11 (2.1%)

Difference of Squares

846

3,185 (avg. 3.8)

737 (87.1%)

12 (1.4%)

Eliud's Eggs

221

603 (avg. 2.7)

176 (79.6%)

2 (0.9%)

Word Count

1,858

4,753 (avg. 2.6)

1,728 (93.0%)

339 (18.2%)

Grains

634

2,392 (avg. 3.8)

565 (89.1%)

21 (3.3%)

Complex Numbers

949

4,128 (avg. 4.3)

761 (80.2%)

23 (2.4%)

Bank Account

564

1,539 (avg. 2.7)

435 (77.1%)

13 (2.3%)

Collatz Conjecture

1,676

5,134 (avg. 3.1)

1,431 (85.4%)

130 (7.8%)

Anagram

2,004

6,631 (avg. 3.3)

1,844 (92.0%)

289 (14.4%)

Series

884

2,170 (avg. 2.5)

724 (81.9%)

71 (8.0%)

Grade School

867

2,504 (avg. 2.9)

781 (90.1%)

58 (6.7%)

Pangram

655

2,392 (avg. 3.7)

590 (90.1%)

16 (2.4%)

Square Root

117

269 (avg. 2.3)

99 (84.6%)

0 (0.0%)

Nucleotide Count

1,439

4,415 (avg. 3.1)

1,263 (87.8%)

122 (8.5%)

Scrabble Score

596

1,477 (avg. 2.5)

539 (90.4%)

17 (2.9%)

Isogram

454

1,478 (avg. 3.3)

385 (84.8%)

8 (1.8%)

Sum of Multiples

452

1,295 (avg. 2.9)

386 (85.4%)

7 (1.5%)

Pascal's Triangle

396

1,181 (avg. 3.0)

302 (76.3%)

6 (1.5%)

Armstrong Numbers

4,060

17,572 (avg. 4.3)

2,617 (64.5%)

952 (23.4%)

Proverb

270

939 (avg. 3.5)

213 (78.9%)

3 (1.1%)

Acronym

955

7,559 (avg. 7.9)

797 (83.5%)

22 (2.3%)

Protein Translation

589

3,225 (avg. 5.5)

483 (82.0%)

21 (3.6%)

Matrix

109

553 (avg. 5.1)

93 (85.3%)

0 (0.0%)

Flatten Array

737

2,146 (avg. 2.9)

592 (80.3%)

14 (1.9%)

Perfect Numbers

478

1,326 (avg. 2.8)

412 (86.2%)

13 (2.7%)

Gigasecond

511

1,397 (avg. 2.7)

410 (80.2%)

16 (3.1%)

Largest Series Product

394

1,557 (avg. 4.0)

328 (83.2%)

6 (1.5%)

Sublist

2,238

10,699 (avg. 4.8)

1,360 (60.8%)

79 (3.5%)

Bob

3,919

17,269 (avg. 4.4)

3,421 (87.3%)

947 (24.2%)

Allergies

525

1,514 (avg. 2.9)

402 (76.6%)

10 (1.9%)

Beer Song

1,598

3,915 (avg. 2.4)

1,301 (81.4%)

158 (9.9%)

Clock

643

1,393 (avg. 2.2)

468 (72.8%)

41 (6.4%)

Secret Handshake

312

798 (avg. 2.6)

257 (82.4%)

4 (1.3%)

Rotational Cipher

363

1,399 (avg. 3.9)

290 (79.9%)

6 (1.7%)

Prime Factors

399

1,080 (avg. 2.7)

328 (82.2%)

12 (3.0%)

Saddle Points

278 (avg. 5.0)

42 (75.0%)

0 (0.0%)

Binary Search

652

2,569 (avg. 3.9)

515 (79.0%)

29 (4.4%)

Phone Number

984

2,789 (avg. 2.8)

850 (86.4%)

82 (8.3%)

Atbash Cipher

400

1,454 (avg. 3.6)

344 (86.0%)

5 (1.3%)

D&D Character

355 (avg. 5.5)

49 (76.6%)

0 (0.0%)

Binary Search Tree

406

1,372 (avg. 3.4)

276 (68.0%)

5 (1.2%)

Twelve Days

217 (avg. 4.6)

34 (72.3%)

0 (0.0%)

Kindergarten Garden

307

934 (avg. 3.0)

240 (78.2%)

7 (2.3%)

ISBN Verifier

784

2,182 (avg. 2.8)

617 (78.7%)

212 (27.0%)

Yacht

150

1,347 (avg. 9.0)

120 (80.0%)

3 (2.0%)

Sieve

319

747 (avg. 2.3)

245 (76.8%)

12 (3.8%)

Run-Length Encoding

1,109

2,998 (avg. 2.7)

813 (73.3%)

308 (27.8%)

Roman Numerals

518

1,405 (avg. 2.7)

441 (85.1%)

15 (2.9%)

List Ops

454 (avg. 7.3)

50 (80.6%)

0 (0.0%)

Nth Prime

643

3,579 (avg. 5.6)

451 (70.1%)

13 (2.0%)

Matching Brackets

400

1,833 (avg. 4.6)

320 (80.0%)

15 (3.8%)

Luhn

344

1,117 (avg. 3.2)

261 (75.9%)

5 (1.5%)

Diamond

210

743 (avg. 3.5)

142 (67.6%)

4 (1.9%)

Queen Attack

318

1,061 (avg. 3.3)

236 (74.2%)

11 (3.5%)

Robot Name

973

4,781 (avg. 4.9)

809 (83.1%)

77 (7.9%)

Conway's Game of Life

310 (avg. 5.6)

40 (72.7%)

2 (3.6%)

Resistor Color Trio

262 (avg. 5.5)

40 (83.3%)

0 (0.0%)

Transpose

415 (avg. 8.8)

32 (68.1%)

0 (0.0%)

Knapsack

229 (avg. 5.0)

33 (71.7%)

0 (0.0%)

All Your Base

925

6,051 (avg. 6.5)

577 (62.4%)

31 (3.4%)

State of Tic-Tac-Toe

412 (avg. 9.4)

31 (70.5%)

0 (0.0%)

Flower Field

85 (avg. 3.1)

16 (59.3%)

0 (0.0%)

Food Chain

127 (avg. 4.1)

19 (61.3%)

0 (0.0%)

Simple Cipher

228 (avg. 6.0)

29 (76.3%)

0 (0.0%)

Pig Latin

447

3,037 (avg. 6.8)

304 (68.0%)

14 (3.1%)

Robot Simulator

1,180

7,095 (avg. 6.0)

678 (57.5%)

49 (4.2%)

Meetup

461

1,016 (avg. 2.2)

355 (77.0%)

20 (4.3%)

Pythagorean Triplet

147 (avg. 3.6)

28 (68.3%)

0 (0.0%)

Crypto Square

351

1,761 (avg. 5.0)

250 (71.2%)

3 (0.9%)

Wordy

318

1,978 (avg. 6.2)

212 (66.7%)

8 (2.5%)

Killer Sudoku Helper

204 (avg. 6.0)

22 (64.7%)

0 (0.0%)

Spiral Matrix

295

505 (avg. 1.7)

165 (55.9%)

8 (2.7%)

Say

667

3,349 (avg. 5.0)

395 (59.2%)

104 (15.6%)

Change

283

1,362 (avg. 4.8)

155 (54.8%)

6 (2.1%)

Dominoes

224

769 (avg. 3.4)

114 (50.9%)

5 (2.2%)

Connect

323 (avg. 12.0)

17 (63.0%)

0 (0.0%)

Poker

209

882 (avg. 4.2)

91 (43.5%)

8 (3.8%)

POV

252

539 (avg. 2.1)

108 (42.9%)

0 (0.0%)

Zipper

381 (avg. 4.8)

42 (53.2%)

1 (1.3%)

Zebra Puzzle

140 (avg. 3.3)

16 (38.1%)

0 (0.0%)

Go Counting

178

626 (avg. 3.5)

67 (37.6%)

5 (2.8%)

6 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Accumulate

970

3,483 (avg. 3.6)

829 (85.5%)

26 (2.7%)

Binary

441

1,161 (avg. 2.6)

388 (88.0%)

12 (2.7%)

Hexadecimal

283

654 (avg. 2.3)

232 (82.0%)

8 (2.8%)

Minesweeper

216

639 (avg. 3.0)

138 (63.9%)

3 (1.4%)

Octal

374

1,247 (avg. 3.3)

314 (84.0%)

12 (3.2%)

Trinary

323

700 (avg. 2.2)

280 (86.7%)

11 (3.4%)

44 unimplemented practice exercises

Affine Cipher

Alphametics

Baffling Birthdays

Book Store

Bottle Song

Bowling

Camicia

Circular Buffer

Custom Set

DOT DSL

Error Handling

Forth

Grep

House

Intergalactic Transmission

Ledger

Lens Person

Line Up

Linked List

Markdown

Micro Blog

OCR Numbers

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Piecing It Together

Prism

Rail Fence Cipher

Rational Numbers

React

Rectangles

Relative Distance

REST API

Satellite

Save the Cow

SGF Parsing

Simple Linked List

Split-Second Stopwatch

Swift Scheduling

Tournament

Tree Building

Two Bucket

Variable Length Quantity

View data

Word Search

View data

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: 7c84007210810337be82518c90205b0655b5f4ae (Takes up to 10 mins to deploy)

Total Test Runner Runs

523,857

Test Run Pass Rate

21.9% (114649)

Test Run Fail Rate

59.6% (312356)

Test Run Error Rate

18.5% (96852)

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.

Current version: 32387777ece4444ceed6bec002216cdd3d945094 (Takes up to 10 mins to deploy)

Total Representer Runs

119,071

Total Representation Comments Made

14,525

Feedback Given Frequency

12.2%

Analyzer

Learn More

Build an Analyzer for Clojure: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

545 Volunteers

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Clojure Track Management

The Clojure track needs attention ⚠️

Clojure syllabus

Practice Exercises

Test Runner

Representer

Analyzer

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