Clojure
Clojure
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Clojure Track Management

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

Students
17,982
Submissions
491,610
Mentoring Discussions
7,599

The Clojure track needs attention ⚠️

Building

Clojure syllabus

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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
6,683 learnt
Ve
Vectors
3,041 learnt
Co
Conditionals
3,973 learnt
Nu
Numbers
3,973 learnt
Fl
Floating-point Numbers
1,676 learnt
Bo
Booleans
2,154 learnt
St
Strings
2,159 learnt
Se
Sequential Destructuring
1,111 learnt
Ch
Chars
561 learnt
At
Atoms
417 learnt
Cl
Closures
417 learnt
Li
Lists
466 learnt
10 active learning exercises
Started
Attempts
Completions
Mentoring requests
Lucian's Luscious Lasagna Lucian's Luscious Lasagna
7,622
25,660 (avg. 3.4)
6,683 (87.7%)
44 (0.6%)
Bird Watcher Bird Watcher
3,783
43,539 (avg. 11.5)
3,041 (80.4%)
132 (3.5%)
Cars, Assemble! Cars, Assemble!
4,456
34,680 (avg. 7.8)
3,973 (89.2%)
99 (2.2%)
Interest is Interesting Interest is Interesting
2,117
32,784 (avg. 15.5)
1,676 (79.2%)
50 (2.4%)
Annalyn's Infiltration Annalyn's Infiltration
2,358
15,443 (avg. 6.5)
2,154 (91.3%)
25 (1.1%)
Log Levels Log Levels
2,507
23,186 (avg. 9.2)
2,159 (86.1%)
46 (1.8%)
Elyses Destructured Enchantments Elyses Destructured Enchantments
1,202
13,904 (avg. 11.6)
1,111 (92.4%)
33 (2.7%)
Squeaky Clean Squeaky Clean
808
12,981 (avg. 16.1)
561 (69.4%)
24 (3.0%)
Coordinate Transformation Coordinate Transformation
597
5,581 (avg. 9.3)
417 (69.8%)
18 (3.0%)
Card Games Card Games
593
8,003 (avg. 13.5)
466 (78.6%)
21 (3.5%)
1 deprecated learning exercises
Started
Attempts
Completions
Mentoring requests
Tracks on Tracks on Tracks Tracks on Tracks on Tracks
3,685
37,080 (avg. 10.1)
3,158 (85.7%)
70 (1.9%)

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: 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
14,250
22,444 (avg. 1.6)
12,467 (87.5%)
9 (0.1%)
Two Fer Two Fer
3,357
8,467 (avg. 2.5)
2,929 (87.3%)
952 (28.4%)
Leap Leap
1,924
6,766 (avg. 3.5)
1,748 (90.9%)
76 (4.0%)
High Scores High Scores
77
302 (avg. 3.9)
73 (94.8%)
2 (2.6%)
Darts Darts
82
244 (avg. 3.0)
70 (85.4%)
2 (2.4%)
Reverse String Reverse String
2,663
5,571 (avg. 2.1)
2,253 (84.6%)
692 (26.0%)
RNA Transcription RNA Transcription
2,523
6,125 (avg. 2.4)
2,368 (93.9%)
581 (23.0%)
Resistor Color Resistor Color
65
210 (avg. 3.2)
61 (93.8%)
1 (1.5%)
Hamming Hamming
1,411
3,744 (avg. 2.7)
1,300 (92.1%)
113 (8.0%)
Resistor Color Duo Resistor Color Duo
58
211 (avg. 3.6)
51 (87.9%)
1 (1.7%)
Space Age Space Age
786
2,818 (avg. 3.6)
712 (90.6%)
26 (3.3%)
ETL ETL
950
2,742 (avg. 2.9)
812 (85.5%)
36 (3.8%)
Triangle Triangle
805
3,935 (avg. 4.9)
735 (91.3%)
28 (3.5%)
Raindrops Raindrops
887
3,205 (avg. 3.6)
806 (90.9%)
31 (3.5%)
Strain Strain
427
993 (avg. 2.3)
371 (86.9%)
11 (2.6%)
Difference of Squares Difference of Squares
611
2,058 (avg. 3.4)
533 (87.2%)
9 (1.5%)
Eliud's Eggs Eliud's Eggs
108
274 (avg. 2.5)
86 (79.6%)
2 (1.9%)
Word Count Word Count
1,769
4,160 (avg. 2.4)
1,650 (93.3%)
339 (19.2%)
Grains Grains
535
1,769 (avg. 3.3)
473 (88.4%)
20 (3.7%)
Complex Numbers Complex Numbers
799
3,387 (avg. 4.2)
643 (80.5%)
23 (2.9%)
Bank Account Bank Account
467
1,214 (avg. 2.6)
356 (76.2%)
12 (2.6%)
Collatz Conjecture Collatz Conjecture
1,547
4,688 (avg. 3.0)
1,312 (84.8%)
130 (8.4%)
Anagram Anagram
1,906
6,115 (avg. 3.2)
1,758 (92.2%)
289 (15.2%)
Series Series
811
1,693 (avg. 2.1)
658 (81.1%)
71 (8.8%)
Grade School Grade School
790
2,016 (avg. 2.6)
712 (90.1%)
57 (7.2%)
Pangram Pangram
575
2,073 (avg. 3.6)
515 (89.6%)
16 (2.8%)
Square Root Square Root
40
94 (avg. 2.4)
35 (87.5%)
0 (0.0%)
Nucleotide Count Nucleotide Count
1,381
4,073 (avg. 2.9)
1,211 (87.7%)
122 (8.8%)
Scrabble Score Scrabble Score
534
1,282 (avg. 2.4)
483 (90.4%)
17 (3.2%)
Isogram Isogram
376
1,141 (avg. 3.0)
317 (84.3%)
7 (1.9%)
Sum of Multiples Sum of Multiples
394
1,106 (avg. 2.8)
332 (84.3%)
7 (1.8%)
Pascal's Triangle Pascal's Triangle
334
946 (avg. 2.8)
253 (75.7%)
5 (1.5%)
Armstrong Numbers Armstrong Numbers
3,923
16,292 (avg. 4.2)
2,512 (64.0%)
949 (24.2%)
Proverb Proverb
212
612 (avg. 2.9)
161 (75.9%)
3 (1.4%)
Acronym Acronym
895
7,275 (avg. 8.1)
741 (82.8%)
22 (2.5%)
Protein Translation Protein Translation
504
2,320 (avg. 4.6)
417 (82.7%)
19 (3.8%)
Matrix Matrix
34
166 (avg. 4.9)
29 (85.3%)
0 (0.0%)
Flatten Array Flatten Array
654
1,811 (avg. 2.8)
531 (81.2%)
14 (2.1%)
Perfect Numbers Perfect Numbers
426
1,003 (avg. 2.4)
365 (85.7%)
13 (3.1%)
Gigasecond Gigasecond
466
1,233 (avg. 2.6)
376 (80.7%)
16 (3.4%)
Largest Series Product Largest Series Product
319
1,075 (avg. 3.4)
261 (81.8%)
6 (1.9%)
Sublist Sublist
2,166
10,375 (avg. 4.8)
1,301 (60.1%)
79 (3.6%)
Bob Bob
3,832
16,411 (avg. 4.3)
3,339 (87.1%)
947 (24.7%)
Allergies Allergies
479
1,336 (avg. 2.8)
365 (76.2%)
9 (1.9%)
Beer Song Beer Song
1,560
3,558 (avg. 2.3)
1,268 (81.3%)
158 (10.1%)
Clock Clock
599
1,161 (avg. 1.9)
435 (72.6%)
40 (6.7%)
Secret Handshake Secret Handshake
278
643 (avg. 2.3)
227 (81.7%)
4 (1.4%)
Rotational Cipher Rotational Cipher
330
1,310 (avg. 4.0)
264 (80.0%)
6 (1.8%)
Prime Factors Prime Factors
363
965 (avg. 2.7)
299 (82.4%)
12 (3.3%)
Saddle Points Saddle Points
24
180 (avg. 7.5)
17 (70.8%)
0 (0.0%)
Binary Search Binary Search
614
2,407 (avg. 3.9)
483 (78.7%)
29 (4.7%)
Phone Number Phone Number
958
2,627 (avg. 2.7)
829 (86.5%)
82 (8.6%)
Atbash Cipher Atbash Cipher
377
1,301 (avg. 3.5)
325 (86.2%)
5 (1.3%)
D&D Character D&D Character
27
164 (avg. 6.1)
20 (74.1%)
0 (0.0%)
Binary Search Tree Binary Search Tree
374
1,264 (avg. 3.4)
253 (67.6%)
5 (1.3%)
Twelve Days Twelve Days
20
132 (avg. 6.6)
13 (65.0%)
0 (0.0%)
Kindergarten Garden Kindergarten Garden
287
847 (avg. 3.0)
224 (78.0%)
7 (2.4%)
ISBN Verifier ISBN Verifier
758
2,008 (avg. 2.6)
596 (78.6%)
212 (28.0%)
Yacht Yacht
124
1,144 (avg. 9.2)
98 (79.0%)
3 (2.4%)
Sieve Sieve
290
667 (avg. 2.3)
222 (76.6%)
12 (4.1%)
Run-Length Encoding Run-Length Encoding
1,083
2,852 (avg. 2.6)
790 (72.9%)
307 (28.3%)
Roman Numerals Roman Numerals
495
1,289 (avg. 2.6)
423 (85.5%)
15 (3.0%)
List Ops List Ops
28
197 (avg. 7.0)
23 (82.1%)
0 (0.0%)
Nth Prime Nth Prime
596
3,340 (avg. 5.6)
418 (70.1%)
13 (2.2%)
Matching Brackets Matching Brackets
370
1,649 (avg. 4.5)
293 (79.2%)
15 (4.1%)
Luhn Luhn
317
955 (avg. 3.0)
240 (75.7%)
5 (1.6%)
Diamond Diamond
189
624 (avg. 3.3)
125 (66.1%)
4 (2.1%)
Queen Attack Queen Attack
293
891 (avg. 3.0)
219 (74.7%)
11 (3.8%)
Robot Name Robot Name
953
4,678 (avg. 4.9)
793 (83.2%)
77 (8.1%)
Conway's Game of Life Conway's Game of Life
22
125 (avg. 5.7)
16 (72.7%)
0 (0.0%)
Resistor Color Trio Resistor Color Trio
16
112 (avg. 7.0)
13 (81.3%)
0 (0.0%)
Transpose Transpose
20
237 (avg. 11.9)
13 (65.0%)
0 (0.0%)
Knapsack Knapsack
17
144 (avg. 8.5)
13 (76.5%)
0 (0.0%)
All Your Base All Your Base
891
5,751 (avg. 6.5)
545 (61.2%)
31 (3.5%)
State of Tic-Tac-Toe State of Tic-Tac-Toe
20
257 (avg. 12.9)
14 (70.0%)
0 (0.0%)
Food Chain Food Chain
13
48 (avg. 3.7)
7 (53.8%)
0 (0.0%)
Simple Cipher Simple Cipher
21
183 (avg. 8.7)
17 (81.0%)
0 (0.0%)
Pig Latin Pig Latin
417
2,815 (avg. 6.8)
279 (66.9%)
14 (3.4%)
Robot Simulator Robot Simulator
1,015
6,411 (avg. 6.3)
606 (59.7%)
45 (4.4%)
Minesweeper Minesweeper
216
639 (avg. 3.0)
138 (63.9%)
3 (1.4%)
Meetup Meetup
446
978 (avg. 2.2)
346 (77.6%)
20 (4.5%)
Pythagorean Triplet Pythagorean Triplet
21
106 (avg. 5.0)
14 (66.7%)
0 (0.0%)
Crypto Square Crypto Square
335
1,642 (avg. 4.9)
238 (71.0%)
3 (0.9%)
Wordy Wordy
271
1,332 (avg. 4.9)
180 (66.4%)
7 (2.6%)
Killer Sudoku Helper Killer Sudoku Helper
13
154 (avg. 11.8)
7 (53.8%)
0 (0.0%)
Spiral Matrix Spiral Matrix
275
460 (avg. 1.7)
151 (54.9%)
7 (2.5%)
Say Say
623
2,881 (avg. 4.6)
362 (58.1%)
103 (16.5%)
Change Change
263
1,284 (avg. 4.9)
144 (54.8%)
6 (2.3%)
Dominoes Dominoes
204
713 (avg. 3.5)
104 (51.0%)
5 (2.5%)
Connect Connect
10
308 (avg. 30.8)
7 (70.0%)
0 (0.0%)
Poker Poker
188
831 (avg. 4.4)
81 (43.1%)
8 (4.3%)
POV POV
234
515 (avg. 2.2)
100 (42.7%)
0 (0.0%)
Zipper Zipper
58
261 (avg. 4.5)
30 (51.7%)
1 (1.7%)
Zebra Puzzle Zebra Puzzle
16
103 (avg. 6.4)
6 (37.5%)
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
654 (avg. 2.3)
232 (82.0%)
8 (2.8%)
Octal Octal
374
1,247 (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
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Alphametics Alphametics
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Baffling Birthdays Baffling Birthdays
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Book Store Book Store
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Bottle Song Bottle Song
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Bowling Bowling
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Circular Buffer Circular Buffer
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Custom Set Custom Set
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DOT DSL DOT DSL
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Error Handling Error Handling
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Forth Forth
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Grep Grep
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Hangman Hangman
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House House
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Intergalactic Transmission Intergalactic Transmission
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Ledger Ledger
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Lens Person Lens Person
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Linked List Linked List
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Markdown Markdown
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Micro Blog Micro Blog
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OCR Numbers OCR Numbers
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PaaS I/O PaaS I/O
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Palindrome Products Palindrome Products
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Parallel Letter Frequency Parallel Letter Frequency
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Piecing It Together Piecing It Together
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Rail Fence Cipher Rail Fence Cipher
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Rational Numbers Rational Numbers
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React React
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Rectangles Rectangles
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Relative Distance Relative Distance
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REST API REST API
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Satellite Satellite
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SGF Parsing SGF Parsing
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Simple Linked List Simple Linked List
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Split-Second Stopwatch Split-Second Stopwatch
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Swift Scheduling Swift Scheduling
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Tournament Tournament
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Tree Building Tree Building
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Two Bucket Two Bucket
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Variable Length Quantity Variable Length Quantity
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Word Search Word Search
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Programming Tags

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

0 tags

Test Runner

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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
455,843
Test Run Pass Rate
22.0% (100193)
Test Run Fail Rate
59.6% (271552)
Test Run Error Rate
18.4% (84098)

Representer

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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
106,548
Total Representation Comments Made
12,587
Feedback Given Frequency
11.8%

Analyzer

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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.