Julia
Julia
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Julia Track Management

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

Students
22,202
Submissions
412,030
Mentoring Discussions
4,022

The Julia track needs attention ⚠️

Building

Julia 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 40 concepts. Find out more.
35 concepts being taught
Ba
Basics
1,824 learnt
Bo
Booleans
1,368 learnt
Ch
Chars
375 learnt
Ra
Ranges
759 learnt
Lo
Loops
612 learnt
Nu
Numbers
1,127 learnt
Ve
Vectors
787 learnt
Co
Conditionals
909 learnt
Bi
Bitwise Operations
502 learnt
Tu
Tuples
429 learnt
Pa
Pairs And Dicts
427 learnt
Fu
Functions
316 learnt
Fu
Function Composition
287 learnt
Ve
Vector Operations
466 learnt
St
Strings
493 learnt
Se
Sets
332 learnt
Co
Complex Numbers
214 learnt
No
Nothingness
264 learnt
Ra
Randomness
246 learnt
Ty
Types
223 learnt
Co
Composite Types
188 learnt
Pa
Parametric Types
168 learnt
Mu
Multiple Dispatch
162 learnt
Ty
Type Unions
134 learnt
Er
Errors
130 learnt
Ra
Rational Numbers
251 learnt
Da
Dates and Times
123 learnt
Re
Regular Expressions
128 learnt
Co
Comprehensions
95 learnt
Mu
Multi Dimensional Arrays
121 learnt
Hi
Higher Order Functions
93 learnt
Di
Dict Functions
71 learnt
So
Sorting
208 learnt
In
Interfaces
45 learnt
Li
Linear Algebra Basics
16 learnt
35 active learning exercises
Started
Attempts
Completions
Mentoring requests
Lasagna Lasagna
2,140
5,837 (avg. 2.7)
1,824 (85.2%)
17 (0.8%)
Annalyns Infiltration Annalyns Infiltration
1,555
5,847 (avg. 3.8)
1,368 (88.0%)
10 (0.6%)
Squeaky Clean Squeaky Clean
455
4,293 (avg. 9.4)
375 (82.4%)
1 (0.2%)
Chessboard Chessboard
781
1,952 (avg. 2.5)
759 (97.2%)
0 (0.0%)
Mixed Juices Mixed Juices
701
8,967 (avg. 12.8)
612 (87.3%)
7 (1.0%)
Currency Exchange Currency Exchange
1,320
7,353 (avg. 5.6)
1,127 (85.4%)
14 (1.1%)
Elyses Enchantments Elyses Enchantments
832
4,283 (avg. 5.1)
787 (94.6%)
2 (0.2%)
Cars Assemble Cars Assemble
973
6,059 (avg. 6.2)
909 (93.4%)
7 (0.7%)
Secrets Secrets
572
2,548 (avg. 4.5)
502 (87.8%)
1 (0.2%)
Tisbury Treasure Hunt Tisbury Treasure Hunt
443
1,732 (avg. 3.9)
429 (96.8%)
1 (0.2%)
Inventory Management Inventory Management
465
4,407 (avg. 9.5)
427 (91.8%)
2 (0.4%)
Locomotive Engineer Locomotive Engineer
358
4,122 (avg. 11.5)
316 (88.3%)
5 (1.4%)
High School Sweetheart High School Sweetheart
296
2,087 (avg. 7.1)
287 (97.0%)
0 (0.0%)
Bird Watcher Bird Watcher
481
2,736 (avg. 5.7)
466 (96.9%)
2 (0.4%)
Log Levels Log Levels
522
3,265 (avg. 6.3)
493 (94.4%)
4 (0.8%)
Cater Waiter Cater Waiter
398
5,289 (avg. 13.3)
332 (83.4%)
0 (0.0%)
Tracking Turntable Tracking Turntable
234
1,367 (avg. 5.8)
214 (91.5%)
0 (0.0%)
Name Badges Name Badges
276
1,680 (avg. 6.1)
264 (95.7%)
0 (0.0%)
Captains Log Captains Log
255
1,285 (avg. 5.0)
246 (96.5%)
0 (0.0%)
Grading Guru Grading Guru
234
1,477 (avg. 6.3)
223 (95.3%)
0 (0.0%)
Land Grab In Space Land Grab In Space
203
1,568 (avg. 7.7)
188 (92.6%)
0 (0.0%)
Treasure Chest Treasure Chest
175
616 (avg. 3.5)
168 (96.0%)
0 (0.0%)
Encounters Encounters
171
1,443 (avg. 8.4)
162 (94.7%)
2 (1.2%)
Role Playing Game Role Playing Game
144
811 (avg. 5.6)
134 (93.1%)
0 (0.0%)
Factory Sensors Factory Sensors
146
1,062 (avg. 7.3)
130 (89.0%)
1 (0.7%)
Problematic Probabilities Problematic Probabilities
277
2,553 (avg. 9.2)
251 (90.6%)
1 (0.4%)
Booking Up For Beauty Booking Up For Beauty
131
918 (avg. 7.0)
123 (93.9%)
0 (0.0%)
Regular Chatbot Regular Chatbot
148
945 (avg. 6.4)
128 (86.5%)
0 (0.0%)
Boutique Suggestions Boutique Suggestions
100
568 (avg. 5.7)
95 (95.0%)
0 (0.0%)
Exercism Matrix Exercism Matrix
149
1,761 (avg. 11.8)
121 (81.2%)
1 (0.7%)
Cheese Club Cheese Club
103
779 (avg. 7.6)
93 (90.3%)
0 (0.0%)
Mecha Munch Management Mecha Munch Management
79
586 (avg. 7.4)
71 (89.9%)
0 (0.0%)
Ordering Ordeal Ordering Ordeal
240
2,107 (avg. 8.8)
208 (86.7%)
1 (0.4%)
Fibonacci Iterator Fibonacci Iterator
63
231 (avg. 3.7)
45 (71.4%)
0 (0.0%)
Robot Revolution Robot Revolution
20
111 (avg. 5.6)
16 (80.0%)
0 (0.0%)
10 deprecated learning exercises
Started
Attempts
Completions
Mentoring requests
Old Annalyn's Infiltration Ⅱ Old Annalyn's Infiltration Ⅱ
3
2 (avg. 0.7)
2 (66.7%)
0 (0.0%)
Old DND Character Old DND Character
2
8 (avg. 4.0)
2 (100.0%)
0 (0.0%)
Old Documented Lasagna Old Documented Lasagna
27
35 (avg. 1.3)
26 (96.3%)
0 (0.0%)
Old Elyse's Analytic Enchantments Old Elyse's Analytic Enchantments
2
4 (avg. 2.0)
2 (100.0%)
0 (0.0%)
Old Elyse's Enchantments Old Elyse's Enchantments
2
12 (avg. 6.0)
2 (100.0%)
0 (0.0%)
Old High Score Old High Score
2
8 (avg. 4.0)
2 (100.0%)
0 (0.0%)
Old Stage Heralding Old Stage Heralding
2
36 (avg. 18.0)
2 (100.0%)
0 (0.0%)
Old Vehicle Purchase Old Vehicle Purchase
2
6 (avg. 3.0)
2 (100.0%)
0 (0.0%)
Old Welcome to the Tech Palace! Old Welcome to the Tech Palace!
2
4 (avg. 2.0)
2 (100.0%)
0 (0.0%)
Old 🕑🕤🕗 Old 🕑🕤🕗
2
7 (avg. 3.5)
2 (100.0%)
0 (0.0%)

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: 5bff83b0a36027ab6152161a4002744b7a1fb128 (Updates should be instant)

Next goal: Implement 137 practice exercises. Find out more.
93 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
17,432
30,870 (avg. 1.8)
14,125 (81.0%)
0 (0.0%)
Leap Leap
8,625
28,178 (avg. 3.3)
6,026 (69.9%)
1,213 (14.1%)
Nucleotide Count Nucleotide Count
5,487
28,363 (avg. 5.2)
3,700 (67.4%)
654 (11.9%)
Pangram Pangram
3,571
16,624 (avg. 4.7)
2,740 (76.7%)
426 (11.9%)
Difference of Squares Difference of Squares
2,977
10,716 (avg. 3.6)
2,608 (87.6%)
194 (6.5%)
Raindrops Raindrops
2,352
9,670 (avg. 4.1)
2,084 (88.6%)
183 (7.8%)
Darts Darts
2,083
4,610 (avg. 2.2)
1,843 (88.5%)
34 (1.6%)
Hamming Hamming
2,199
6,716 (avg. 3.1)
1,855 (84.4%)
51 (2.3%)
RNA Transcription RNA Transcription
1,793
6,556 (avg. 3.7)
1,528 (85.2%)
34 (1.9%)
Run-Length Encoding Run-Length Encoding
1,384
7,133 (avg. 5.2)
1,005 (72.6%)
37 (2.7%)
Scrabble Score Scrabble Score
1,055
4,096 (avg. 3.9)
911 (86.4%)
27 (2.6%)
Word Count Word Count
1,134
7,526 (avg. 6.6)
822 (72.5%)
30 (2.6%)
Allergies Allergies
710
3,320 (avg. 4.7)
547 (77.0%)
18 (2.5%)
Isogram Isogram
808
2,647 (avg. 3.3)
718 (88.9%)
10 (1.2%)
Atbash Cipher Atbash Cipher
740
3,539 (avg. 4.8)
596 (80.5%)
14 (1.9%)
Grains Grains
696
4,617 (avg. 6.6)
583 (83.8%)
8 (1.1%)
Pascal's Triangle Pascal's Triangle
830
2,907 (avg. 3.5)
632 (76.1%)
12 (1.4%)
Luhn Luhn
671
3,366 (avg. 5.0)
511 (76.2%)
8 (1.2%)
Roman Numerals Roman Numerals
856
4,258 (avg. 5.0)
695 (81.2%)
10 (1.2%)
Acronym Acronym
546
2,059 (avg. 3.8)
450 (82.4%)
10 (1.8%)
Armstrong Numbers Armstrong Numbers
678
1,778 (avg. 2.6)
577 (85.1%)
9 (1.3%)
Gigasecond Gigasecond
590
939 (avg. 1.6)
497 (84.2%)
12 (2.0%)
Phone Number Phone Number
660
2,417 (avg. 3.7)
533 (80.8%)
24 (3.6%)
Prime Factors Prime Factors
543
1,853 (avg. 3.4)
425 (78.3%)
16 (2.9%)
Triangle Triangle
734
2,305 (avg. 3.1)
606 (82.6%)
22 (3.0%)
Sum of Multiples Sum of Multiples
411
2,154 (avg. 5.2)
353 (85.9%)
15 (3.6%)
Resistor Color Resistor Color
167
392 (avg. 2.3)
152 (91.0%)
0 (0.0%)
Eliud's Eggs Eliud's Eggs
340
994 (avg. 2.9)
312 (91.8%)
0 (0.0%)
Two-Fer Two-Fer
267
877 (avg. 3.3)
232 (86.9%)
2 (0.7%)
Line Up Line Up
35
116 (avg. 3.3)
32 (91.4%)
0 (0.0%)
Pig Latin Pig Latin
210
1,323 (avg. 6.3)
140 (66.7%)
4 (1.9%)
Rotational Cipher Rotational Cipher
2,020
15,207 (avg. 7.5)
1,318 (65.2%)
266 (13.2%)
Secret Handshake Secret Handshake
1,301
6,662 (avg. 5.1)
1,039 (79.9%)
145 (11.1%)
ETL ETL
895
2,328 (avg. 2.6)
767 (85.7%)
20 (2.2%)
Anagram Anagram
913
3,023 (avg. 3.3)
736 (80.6%)
18 (2.0%)
Flower Field Flower Field
79
304 (avg. 3.8)
64 (81.0%)
0 (0.0%)
Collatz Conjecture Collatz Conjecture
1,079
4,838 (avg. 4.5)
951 (88.1%)
12 (1.1%)
Sieve Sieve
571
1,941 (avg. 3.4)
473 (82.8%)
9 (1.6%)
Strain Strain
115
200 (avg. 1.7)
107 (93.0%)
0 (0.0%)
Protein Translation Protein Translation
136
670 (avg. 4.9)
109 (80.1%)
0 (0.0%)
Proverb Proverb
101
253 (avg. 2.5)
92 (91.1%)
0 (0.0%)
Bob Bob
1,510
5,235 (avg. 3.5)
1,049 (69.5%)
48 (3.2%)
Resistor Color Duo Resistor Color Duo
113
214 (avg. 1.9)
104 (92.0%)
0 (0.0%)
Resistor Color Trio Resistor Color Trio
443
1,834 (avg. 4.1)
368 (83.1%)
3 (0.7%)
Square Root Square Root
479
1,837 (avg. 3.8)
354 (73.9%)
8 (1.7%)
Space Age Space Age
294
725 (avg. 2.5)
267 (90.8%)
1 (0.3%)
Matrix Matrix
113
328 (avg. 2.9)
96 (85.0%)
0 (0.0%)
Queen Attack Queen Attack
91
446 (avg. 4.9)
85 (93.4%)
1 (1.1%)
Reverse String Reverse String
948
3,071 (avg. 3.2)
812 (85.7%)
14 (1.5%)
Binary Search Binary Search
903
3,527 (avg. 3.9)
523 (57.9%)
20 (2.2%)
Yacht Yacht
89
310 (avg. 3.5)
76 (85.4%)
0 (0.0%)
Perfect Numbers Perfect Numbers
656
3,759 (avg. 5.7)
541 (82.5%)
13 (2.0%)
Spiral Matrix Spiral Matrix
527
1,665 (avg. 3.2)
362 (68.7%)
11 (2.1%)
Conway's Game of Life Conway's Game of Life
95
411 (avg. 4.3)
73 (76.8%)
0 (0.0%)
Wordy Wordy
83
427 (avg. 5.1)
63 (75.9%)
0 (0.0%)
Grade School Grade School
71
411 (avg. 5.8)
52 (73.2%)
0 (0.0%)
Diamond Diamond
112
805 (avg. 7.2)
100 (89.3%)
1 (0.9%)
Kindergarten Garden Kindergarten Garden
67
169 (avg. 2.5)
57 (85.1%)
0 (0.0%)
Nth Prime Nth Prime
38
134 (avg. 3.5)
31 (81.6%)
0 (0.0%)
Simple Cipher Simple Cipher
13
57 (avg. 4.4)
10 (76.9%)
0 (0.0%)
Crypto Square Crypto Square
17
222 (avg. 13.1)
15 (88.2%)
0 (0.0%)
All Your Base All Your Base
379
2,229 (avg. 5.9)
268 (70.7%)
4 (1.1%)
Largest Series Product Largest Series Product
316
1,870 (avg. 5.9)
281 (88.9%)
8 (2.5%)
Saddle Points Saddle Points
315
1,547 (avg. 4.9)
244 (77.5%)
10 (3.2%)
Meetup Meetup
71
242 (avg. 3.4)
59 (83.1%)
0 (0.0%)
Palindrome Products Palindrome Products
87
590 (avg. 6.8)
67 (77.0%)
2 (2.3%)
Food Chain Food Chain
62
261 (avg. 4.2)
48 (77.4%)
0 (0.0%)
Swift Scheduling Swift Scheduling
35
276 (avg. 7.9)
32 (91.4%)
0 (0.0%)
Affine Cipher Affine Cipher
10
43 (avg. 4.3)
9 (90.0%)
0 (0.0%)
Rectangles Rectangles
9
19 (avg. 2.1)
6 (66.7%)
0 (0.0%)
Killer Sudoku Helper Killer Sudoku Helper
2,028
7,410 (avg. 3.7)
380 (18.7%)
47 (2.3%)
Clock Clock
984
7,319 (avg. 7.4)
554 (56.3%)
114 (11.6%)
Robot Name Robot Name
729
4,174 (avg. 5.7)
472 (64.7%)
91 (12.5%)
ISBN Verifier ISBN Verifier
422
2,382 (avg. 5.6)
272 (64.5%)
16 (3.8%)
Matching Brackets Matching Brackets
411
1,534 (avg. 3.7)
310 (75.4%)
11 (2.7%)
Connect Connect
61
186 (avg. 3.0)
43 (70.5%)
1 (1.6%)
Dominoes Dominoes
58
180 (avg. 3.1)
34 (58.6%)
0 (0.0%)
Change Change
53
287 (avg. 5.4)
44 (83.0%)
0 (0.0%)
Knapsack Knapsack
48
111 (avg. 2.3)
37 (77.1%)
0 (0.0%)
State of Tic-Tac-Toe State of Tic-Tac-Toe
26
85 (avg. 3.3)
21 (80.8%)
0 (0.0%)
Robot Simulator Robot Simulator
414
2,142 (avg. 5.2)
276 (66.7%)
13 (3.1%)
Binary Search Tree Binary Search Tree
56
303 (avg. 5.4)
37 (66.1%)
1 (1.8%)
Two Bucket Two Bucket
48
196 (avg. 4.1)
35 (72.9%)
0 (0.0%)
FFT FFT
93
514 (avg. 5.5)
57 (61.3%)
0 (0.0%)
Intergalactic Transmission Intergalactic Transmission
105
1,304 (avg. 12.4)
63 (60.0%)
2 (1.9%)
Baffling Birthdays Baffling Birthdays
42
333 (avg. 7.9)
37 (88.1%)
0 (0.0%)
Pythagorean Triplet Pythagorean Triplet
547
2,076 (avg. 3.8)
391 (71.5%)
24 (4.4%)
Satellite Satellite
17
37 (avg. 2.2)
13 (76.5%)
0 (0.0%)
Custom Set Custom Set
370
2,952 (avg. 8.0)
198 (53.5%)
12 (3.2%)
Rational Numbers Rational Numbers
349
3,499 (avg. 10.0)
170 (48.7%)
14 (4.0%)
Circular Buffer Circular Buffer
281
2,090 (avg. 7.4)
157 (55.9%)
15 (5.3%)
Complex Numbers Complex Numbers
462
2,650 (avg. 5.7)
274 (59.3%)
22 (4.8%)
Alphametics Alphametics
217
1,409 (avg. 6.5)
104 (47.9%)
3 (1.4%)
5 deprecated practice exercises
Started
Attempts
Completions
Mentoring requests
Accumulate Accumulate
67
70 (avg. 1.0)
52 (77.6%)
3 (4.5%)
D&D Character D&D Character
93
90 (avg. 1.0)
63 (67.7%)
1 (1.1%)
Minesweeper Minesweeper
508
3,277 (avg. 6.5)
329 (64.8%)
16 (3.1%)
Transpose Transpose
204
263 (avg. 1.3)
121 (59.3%)
7 (3.4%)
Trinary Trinary
503
1,381 (avg. 2.7)
439 (87.3%)
3 (0.6%)
44 unimplemented practice exercises
Bank Account Bank Account
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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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Camicia Camicia
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DOT DSL DOT DSL
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Error Handling Error Handling
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Flatten Array Flatten Array
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Forth Forth
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Go Counting Go Counting
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Grep Grep
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High Scores High Scores
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House House
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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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List Ops List Ops
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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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Parallel Letter Frequency Parallel Letter Frequency
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Piecing It Together Piecing It Together
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Poker Poker
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POV POV
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Prism Prism
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Rail Fence Cipher Rail Fence Cipher
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React React
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Relative Distance Relative Distance
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REST API REST API
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Save the Cow Save the Cow
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Say Say
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Series Series
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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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Sublist Sublist
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Tournament Tournament
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Tree Building Tree Building
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Twelve Days Twelve Days
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Variable Length Quantity Variable Length Quantity
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Word Search Word Search
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Zebra Puzzle Zebra Puzzle
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Zipper Zipper
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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: 3c271dd9c31e4fc795cf29ce4d710ca89a8eb17d (Takes up to 10 mins to deploy)

Total Test Runner Runs
398,204
Test Run Pass Rate
25.8% (102886)
Test Run Fail Rate
57.8% (230077)
Test Run Error Rate
16.4% (65241)

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

Next goal: Build an Analyzer. Find out more.