Clojure
Clojure
About ClojureLearnPractice

Clojure Track Management

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

Students
17,870
Submissions
484,159
Mentoring Discussions
7,592

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
Ba
Basics
6,602 learnt
Ve
Vectors
2,993 learnt
Co
Conditionals
3,916 learnt
Nu
Numbers
3,916 learnt
Fl
Floating-point Numbers
1,648 learnt
Bo
Booleans
2,121 learnt
St
Strings
2,123 learnt
Se
Sequential Destructuring
1,095 learnt
Ch
Chars
538 learnt
At
Atoms
398 learnt
Cl
Closures
398 learnt
Li
Lists
449 learnt
10 active learning exercises
Started
Attempts
Completions
Mentoring requests
Lucian's Luscious Lasagna Lucian's Luscious Lasagna
7,521
25,270 (avg. 3.4)
6,602 (87.8%)
44 (0.6%)
Bird Watcher Bird Watcher
3,715
42,902 (avg. 11.5)
2,993 (80.6%)
131 (3.5%)
Cars, Assemble! Cars, Assemble!
4,392
34,293 (avg. 7.8)
3,916 (89.2%)
98 (2.2%)
Interest is Interesting Interest is Interesting
2,084
32,328 (avg. 15.5)
1,648 (79.1%)
50 (2.4%)
Annalyn's Infiltration Annalyn's Infiltration
2,322
15,253 (avg. 6.6)
2,121 (91.3%)
25 (1.1%)
Log Levels Log Levels
2,469
22,743 (avg. 9.2)
2,123 (86.0%)
46 (1.9%)
Elyses Destructured Enchantments Elyses Destructured Enchantments
1,186
13,688 (avg. 11.5)
1,095 (92.3%)
33 (2.8%)
Squeaky Clean Squeaky Clean
779
12,511 (avg. 16.1)
538 (69.1%)
24 (3.1%)
Coordinate Transformation Coordinate Transformation
570
5,330 (avg. 9.4)
398 (69.8%)
18 (3.2%)
Card Games Card Games
569
7,667 (avg. 13.5)
449 (78.9%)
21 (3.7%)
1 deprecated learning exercises
Started
Attempts
Completions
Mentoring requests
Tracks on Tracks on Tracks Tracks on Tracks on Tracks
3,685
37,071 (avg. 10.1)
3,157 (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: 8e6ada9519013ad3992a6ac17361788b4d8691ec (Updates should be instant)

Next goal: Implement 136 practice exercises. Find out more.
95 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
14,120
22,207 (avg. 1.6)
12,356 (87.5%)
9 (0.1%)
Two Fer Two Fer
3,336
8,338 (avg. 2.5)
2,908 (87.2%)
952 (28.5%)
Leap Leap
1,908
6,677 (avg. 3.5)
1,732 (90.8%)
76 (4.0%)
High Scores High Scores
64
239 (avg. 3.7)
58 (90.6%)
1 (1.6%)
Darts Darts
60
163 (avg. 2.7)
54 (90.0%)
2 (3.3%)
Reverse String Reverse String
2,646
5,527 (avg. 2.1)
2,236 (84.5%)
692 (26.2%)
RNA Transcription RNA Transcription
2,507
6,067 (avg. 2.4)
2,354 (93.9%)
580 (23.1%)
Resistor Color Resistor Color
52
128 (avg. 2.5)
48 (92.3%)
1 (1.9%)
Hamming Hamming
1,397
3,684 (avg. 2.6)
1,288 (92.2%)
113 (8.1%)
Resistor Color Duo Resistor Color Duo
47
164 (avg. 3.5)
42 (89.4%)
1 (2.1%)
Space Age Space Age
772
2,691 (avg. 3.5)
697 (90.3%)
25 (3.2%)
ETL ETL
939
2,635 (avg. 2.8)
803 (85.5%)
36 (3.8%)
Triangle Triangle
788
3,788 (avg. 4.8)
718 (91.1%)
28 (3.6%)
Raindrops Raindrops
873
3,172 (avg. 3.6)
793 (90.8%)
31 (3.6%)
Strain Strain
415
946 (avg. 2.3)
359 (86.5%)
10 (2.4%)
Difference of Squares Difference of Squares
590
1,954 (avg. 3.3)
514 (87.1%)
9 (1.5%)
Eliud's Eggs Eliud's Eggs
96
248 (avg. 2.6)
76 (79.2%)
2 (2.1%)
Word Count Word Count
1,760
4,071 (avg. 2.3)
1,641 (93.2%)
339 (19.3%)
Grains Grains
525
1,693 (avg. 3.2)
461 (87.8%)
20 (3.8%)
Complex Numbers Complex Numbers
784
3,303 (avg. 4.2)
631 (80.5%)
23 (2.9%)
Bank Account Bank Account
458
1,150 (avg. 2.5)
349 (76.2%)
12 (2.6%)
Collatz Conjecture Collatz Conjecture
1,537
4,657 (avg. 3.0)
1,301 (84.6%)
130 (8.5%)
Anagram Anagram
1,898
6,103 (avg. 3.2)
1,753 (92.4%)
289 (15.2%)
Series Series
806
1,665 (avg. 2.1)
652 (80.9%)
71 (8.8%)
Grade School Grade School
784
1,983 (avg. 2.5)
708 (90.3%)
57 (7.3%)
Pangram Pangram
568
2,057 (avg. 3.6)
509 (89.6%)
16 (2.8%)
Square Root Square Root
35
79 (avg. 2.3)
30 (85.7%)
0 (0.0%)
Nucleotide Count Nucleotide Count
1,377
4,052 (avg. 2.9)
1,207 (87.7%)
122 (8.9%)
Scrabble Score Scrabble Score
530
1,266 (avg. 2.4)
479 (90.4%)
17 (3.2%)
Isogram Isogram
368
1,123 (avg. 3.1)
309 (84.0%)
6 (1.6%)
Sum of Multiples Sum of Multiples
389
1,082 (avg. 2.8)
327 (84.1%)
7 (1.8%)
Pascal's Triangle Pascal's Triangle
330
929 (avg. 2.8)
249 (75.5%)
5 (1.5%)
Armstrong Numbers Armstrong Numbers
3,913
16,230 (avg. 4.1)
2,505 (64.0%)
949 (24.3%)
Proverb Proverb
207
586 (avg. 2.8)
155 (74.9%)
3 (1.4%)
Acronym Acronym
889
7,261 (avg. 8.2)
736 (82.8%)
22 (2.5%)
Protein Translation Protein Translation
501
2,307 (avg. 4.6)
415 (82.8%)
19 (3.8%)
Matrix Matrix
31
163 (avg. 5.3)
27 (87.1%)
0 (0.0%)
Flatten Array Flatten Array
650
1,783 (avg. 2.7)
527 (81.1%)
14 (2.2%)
Perfect Numbers Perfect Numbers
421
954 (avg. 2.3)
362 (86.0%)
13 (3.1%)
Gigasecond Gigasecond
461
1,228 (avg. 2.7)
374 (81.1%)
16 (3.5%)
Largest Series Product Largest Series Product
315
1,042 (avg. 3.3)
258 (81.9%)
6 (1.9%)
Sublist Sublist
2,158
10,323 (avg. 4.8)
1,294 (60.0%)
79 (3.7%)
Bob Bob
3,824
16,351 (avg. 4.3)
3,331 (87.1%)
947 (24.8%)
Allergies Allergies
476
1,276 (avg. 2.7)
363 (76.3%)
9 (1.9%)
Beer Song Beer Song
1,557
3,550 (avg. 2.3)
1,266 (81.3%)
158 (10.1%)
Clock Clock
597
1,157 (avg. 1.9)
434 (72.7%)
40 (6.7%)
Secret Handshake Secret Handshake
275
632 (avg. 2.3)
225 (81.8%)
4 (1.5%)
Rotational Cipher Rotational Cipher
326
1,296 (avg. 4.0)
260 (79.8%)
6 (1.8%)
Prime Factors Prime Factors
358
937 (avg. 2.6)
295 (82.4%)
12 (3.4%)
Saddle Points Saddle Points
19
123 (avg. 6.5)
12 (63.2%)
0 (0.0%)
Binary Search Binary Search
609
2,375 (avg. 3.9)
478 (78.5%)
29 (4.8%)
Phone Number Phone Number
956
2,613 (avg. 2.7)
827 (86.5%)
82 (8.6%)
Atbash Cipher Atbash Cipher
373
1,266 (avg. 3.4)
321 (86.1%)
5 (1.3%)
D&D Character D&D Character
21
136 (avg. 6.5)
16 (76.2%)
0 (0.0%)
Binary Search Tree Binary Search Tree
370
1,258 (avg. 3.4)
251 (67.8%)
5 (1.4%)
Twelve Days Twelve Days
15
115 (avg. 7.7)
10 (66.7%)
0 (0.0%)
Kindergarten Garden Kindergarten Garden
283
819 (avg. 2.9)
220 (77.7%)
7 (2.5%)
ISBN Verifier ISBN Verifier
755
1,988 (avg. 2.6)
594 (78.7%)
212 (28.1%)
Yacht Yacht
122
1,104 (avg. 9.0)
96 (78.7%)
3 (2.5%)
Sieve Sieve
287
648 (avg. 2.3)
220 (76.7%)
12 (4.2%)
Run-Length Encoding Run-Length Encoding
1,080
2,799 (avg. 2.6)
788 (73.0%)
307 (28.4%)
Roman Numerals Roman Numerals
493
1,284 (avg. 2.6)
421 (85.4%)
15 (3.0%)
List Ops List Ops
25
172 (avg. 6.9)
20 (80.0%)
0 (0.0%)
Nth Prime Nth Prime
592
3,332 (avg. 5.6)
416 (70.3%)
13 (2.2%)
Matching Brackets Matching Brackets
369
1,647 (avg. 4.5)
293 (79.4%)
14 (3.8%)
Luhn Luhn
313
889 (avg. 2.8)
238 (76.0%)
4 (1.3%)
Diamond Diamond
187
598 (avg. 3.2)
123 (65.8%)
4 (2.1%)
Queen Attack Queen Attack
291
870 (avg. 3.0)
218 (74.9%)
11 (3.8%)
Robot Name Robot Name
951
4,645 (avg. 4.9)
791 (83.2%)
77 (8.1%)
Conway's Game of Life Conway's Game of Life
21
93 (avg. 4.4)
15 (71.4%)
0 (0.0%)
Resistor Color Trio Resistor Color Trio
15
103 (avg. 6.9)
12 (80.0%)
0 (0.0%)
Transpose Transpose
18
167 (avg. 9.3)
11 (61.1%)
0 (0.0%)
Knapsack Knapsack
16
107 (avg. 6.7)
11 (68.8%)
0 (0.0%)
All Your Base All Your Base
889
5,736 (avg. 6.5)
544 (61.2%)
31 (3.5%)
State of Tic-Tac-Toe State of Tic-Tac-Toe
18
230 (avg. 12.8)
13 (72.2%)
0 (0.0%)
Food Chain Food Chain
12
44 (avg. 3.7)
7 (58.3%)
0 (0.0%)
Simple Cipher Simple Cipher
20
148 (avg. 7.4)
16 (80.0%)
0 (0.0%)
Pig Latin Pig Latin
416
2,769 (avg. 6.7)
277 (66.6%)
14 (3.4%)
Robot Simulator Robot Simulator
1,003
6,343 (avg. 6.3)
600 (59.8%)
45 (4.5%)
Minesweeper Minesweeper
216
639 (avg. 3.0)
137 (63.4%)
3 (1.4%)
Meetup Meetup
444
977 (avg. 2.2)
345 (77.7%)
20 (4.5%)
Pythagorean Triplet Pythagorean Triplet
20
101 (avg. 5.1)
13 (65.0%)
0 (0.0%)
Crypto Square Crypto Square
334
1,637 (avg. 4.9)
237 (71.0%)
3 (0.9%)
Wordy Wordy
266
1,229 (avg. 4.6)
178 (66.9%)
7 (2.6%)
Killer Sudoku Helper Killer Sudoku Helper
12
154 (avg. 12.8)
7 (58.3%)
0 (0.0%)
Spiral Matrix Spiral Matrix
275
460 (avg. 1.7)
151 (54.9%)
7 (2.5%)
Say Say
617
2,821 (avg. 4.6)
358 (58.0%)
103 (16.7%)
Change Change
261
1,198 (avg. 4.6)
143 (54.8%)
6 (2.3%)
Dominoes Dominoes
203
713 (avg. 3.5)
104 (51.2%)
5 (2.5%)
Connect Connect
10
299 (avg. 29.9)
6 (60.0%)
0 (0.0%)
Poker Poker
187
831 (avg. 4.4)
81 (43.3%)
8 (4.3%)
POV POV
233
515 (avg. 2.2)
100 (42.9%)
0 (0.0%)
Zipper Zipper
56
244 (avg. 4.4)
30 (53.6%)
1 (1.8%)
Zebra Puzzle Zebra Puzzle
15
102 (avg. 6.8)
6 (40.0%)
0 (0.0%)
Go Counting Go Counting
157
610 (avg. 3.9)
59 (37.6%)
5 (3.2%)
5 deprecated practice exercises
Started
Attempts
Completions
Mentoring requests
Accumulate Accumulate
970
3,480 (avg. 3.6)
829 (85.5%)
26 (2.7%)
Binary Binary
441
1,157 (avg. 2.6)
387 (87.8%)
12 (2.7%)
Hexadecimal Hexadecimal
283
650 (avg. 2.3)
232 (82.0%)
8 (2.8%)
Octal Octal
374
1,245 (avg. 3.3)
314 (84.0%)
12 (3.2%)
Trinary Trinary
323
700 (avg. 2.2)
280 (86.7%)
11 (3.4%)
41 unimplemented practice exercises
Affine Cipher Affine Cipher
View dataThe link opens in a new window or tab
Alphametics Alphametics
View dataThe link opens in a new window or tab
Baffling Birthdays Baffling Birthdays
View dataThe link opens in a new window or tab
Book Store Book Store
View dataThe link opens in a new window or tab
Bottle Song Bottle Song
View dataThe link opens in a new window or tab
Bowling Bowling
View dataThe link opens in a new window or tab
Circular Buffer Circular Buffer
View dataThe link opens in a new window or tab
Custom Set Custom Set
View dataThe link opens in a new window or tab
DOT DSL DOT DSL
View dataThe link opens in a new window or tab
Error Handling Error Handling
View dataThe link opens in a new window or tab
Forth Forth
View dataThe link opens in a new window or tab
Grep Grep
View dataThe link opens in a new window or tab
Hangman Hangman
View dataThe link opens in a new window or tab
House House
View dataThe link opens in a new window or tab
Intergalactic Transmission Intergalactic Transmission
View dataThe link opens in a new window or tab
Ledger Ledger
View dataThe link opens in a new window or tab
Lens Person Lens Person
View dataThe link opens in a new window or tab
Linked List Linked List
View dataThe link opens in a new window or tab
Markdown Markdown
View dataThe link opens in a new window or tab
Micro Blog Micro Blog
View dataThe link opens in a new window or tab
OCR Numbers OCR Numbers
View dataThe link opens in a new window or tab
PaaS I/O PaaS I/O
View dataThe link opens in a new window or tab
Palindrome Products Palindrome Products
View dataThe link opens in a new window or tab
Parallel Letter Frequency Parallel Letter Frequency
View dataThe link opens in a new window or tab
Piecing It Together Piecing It Together
View dataThe link opens in a new window or tab
Rail Fence Cipher Rail Fence Cipher
View dataThe link opens in a new window or tab
Rational Numbers Rational Numbers
View dataThe link opens in a new window or tab
React React
View dataThe link opens in a new window or tab
Rectangles Rectangles
View dataThe link opens in a new window or tab
Relative Distance Relative Distance
View dataThe link opens in a new window or tab
REST API REST API
View dataThe link opens in a new window or tab
Satellite Satellite
View dataThe link opens in a new window or tab
SGF Parsing SGF Parsing
View dataThe link opens in a new window or tab
Simple Linked List Simple Linked List
View dataThe link opens in a new window or tab
Split-Second Stopwatch Split-Second Stopwatch
View dataThe link opens in a new window or tab
Swift Scheduling Swift Scheduling
View dataThe link opens in a new window or tab
Tournament Tournament
View dataThe link opens in a new window or tab
Tree Building Tree Building
View dataThe link opens in a new window or tab
Two Bucket Two Bucket
View dataThe link opens in a new window or tab
Variable Length Quantity Variable Length Quantity
View dataThe link opens in a new window or tab
Word Search Word Search
View dataThe link opens in a new window or tab

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: 33d0f8d3ae29f3ddd682546cc7721b69fe6b7166 (Takes up to 10 mins to deploy)

Total Test Runner Runs
448,413
Test Run Pass Rate
22.0% (98814)
Test Run Fail Rate
59.5% (266859)
Test Run Error Rate
18.5% (82740)

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: 7d314c84d7d61367ec621db7a38b681e26e06832 (Takes up to 10 mins to deploy)

Total Representer Runs
105,335
Total Representation Comments Made
12,421
Feedback Given Frequency
11.8%

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.