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V Track Management

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

Students
525
Submissions
13,632
Mentoring Discussions
42

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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: 479ca6ee49334741f3d4a08f9ae17c483bafe658 (Updates should be instant)

Next goal: Implement 130 practice exercises. Find out more.
85 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
469
663 (avg. 1.4)
412 (87.8%)
0 (0.0%)
Leap Leap
299
845 (avg. 2.8)
218 (72.9%)
7 (2.3%)
Collatz Conjecture Collatz Conjecture
159
1,078 (avg. 6.8)
124 (78.0%)
7 (4.4%)
Reverse String Reverse String
195
599 (avg. 3.1)
167 (85.6%)
4 (2.1%)
Darts Darts
59
270 (avg. 4.6)
43 (72.9%)
2 (3.4%)
Kindergarten Garden Kindergarten Garden
23
86 (avg. 3.7)
17 (73.9%)
1 (4.3%)
Luhn Luhn
36
265 (avg. 7.4)
30 (83.3%)
1 (2.8%)
Micro Blog Micro Blog
8
33 (avg. 4.1)
7 (87.5%)
0 (0.0%)
Resistor Color Resistor Color
39
116 (avg. 3.0)
31 (79.5%)
1 (2.6%)
Pythagorean Triplet Pythagorean Triplet
15
23 (avg. 1.5)
10 (66.7%)
0 (0.0%)
Eliud's Eggs Eliud's Eggs
14
23 (avg. 1.6)
13 (92.9%)
0 (0.0%)
Space Age Space Age
99
484 (avg. 4.9)
87 (87.9%)
3 (3.0%)
Pascals Triangle Pascals Triangle
15
72 (avg. 4.8)
12 (80.0%)
1 (6.7%)
Sublist Sublist
9
12 (avg. 1.3)
8 (88.9%)
0 (0.0%)
Square Root Square Root
11
35 (avg. 3.2)
8 (72.7%)
0 (0.0%)
Phone Number Phone Number
11
46 (avg. 4.2)
8 (72.7%)
0 (0.0%)
Triangle Triangle
99
451 (avg. 4.6)
85 (85.9%)
2 (2.0%)
Protein Translation Protein Translation
30
138 (avg. 4.6)
22 (73.3%)
1 (3.3%)
Bowling Bowling
9
179 (avg. 19.9)
5 (55.6%)
0 (0.0%)
List Ops List Ops
19
198 (avg. 10.4)
14 (73.7%)
1 (5.3%)
Wordy Wordy
8
75 (avg. 9.4)
5 (62.5%)
0 (0.0%)
ISBN Verifier ISBN Verifier
17
58 (avg. 3.4)
13 (76.5%)
2 (11.8%)
Custom Set Custom Set
12
213 (avg. 17.8)
9 (75.0%)
0 (0.0%)
Grains Grains
82
874 (avg. 10.7)
66 (80.5%)
4 (4.9%)
Pangram Pangram
80
583 (avg. 7.3)
66 (82.5%)
1 (1.3%)
Rational Numbers Rational Numbers
11
103 (avg. 9.4)
7 (63.6%)
0 (0.0%)
Complex Numbers Complex Numbers
10
57 (avg. 5.7)
7 (70.0%)
1 (10.0%)
Two Fer Two Fer
68
169 (avg. 2.5)
59 (86.8%)
2 (2.9%)
Raindrops Raindrops
64
189 (avg. 3.0)
53 (82.8%)
1 (1.6%)
Variable Length Quantity Variable Length Quantity
12
29 (avg. 2.4)
5 (41.7%)
0 (0.0%)
Grade School Grade School
43
633 (avg. 14.7)
29 (67.4%)
1 (2.3%)
Nucleotide Count Nucleotide Count
51
213 (avg. 4.2)
43 (84.3%)
1 (2.0%)
Largest Series Product Largest Series Product
10
35 (avg. 3.5)
8 (80.0%)
0 (0.0%)
Nth Prime Nth Prime
42
284 (avg. 6.8)
28 (66.7%)
1 (2.4%)
Saddle Points Saddle Points
8
30 (avg. 3.8)
5 (62.5%)
0 (0.0%)
Matching Brackets Matching Brackets
12
49 (avg. 4.1)
10 (83.3%)
0 (0.0%)
Robot Name Robot Name
41
278 (avg. 6.8)
30 (73.2%)
1 (2.4%)
Diamond Diamond
8
18 (avg. 2.3)
5 (62.5%)
0 (0.0%)
Prime Factors Prime Factors
32
136 (avg. 4.3)
28 (87.5%)
1 (3.1%)
Sieve Sieve
40
228 (avg. 5.7)
34 (85.0%)
1 (2.5%)
Acronym Acronym
16
112 (avg. 7.0)
13 (81.3%)
0 (0.0%)
Queen Attack Queen Attack
37
265 (avg. 7.2)
30 (81.1%)
1 (2.7%)
Hamming Hamming
41
148 (avg. 3.6)
35 (85.4%)
0 (0.0%)
Bob Bob
12
124 (avg. 10.3)
10 (83.3%)
0 (0.0%)
Crypto Square Crypto Square
8
105 (avg. 13.1)
5 (62.5%)
0 (0.0%)
Isogram Isogram
45
236 (avg. 5.2)
39 (86.7%)
0 (0.0%)
Scrabble Score Scrabble Score
41
139 (avg. 3.4)
35 (85.4%)
0 (0.0%)
Atbash Cipher Atbash Cipher
9
58 (avg. 6.4)
7 (77.8%)
0 (0.0%)
Meetup Meetup
25
258 (avg. 10.3)
19 (76.0%)
1 (4.0%)
Rotational Cipher Rotational Cipher
8
30 (avg. 3.8)
6 (75.0%)
0 (0.0%)
Resistor Color Duo Resistor Color Duo
9
27 (avg. 3.0)
8 (88.9%)
0 (0.0%)
Clock Clock
33
273 (avg. 8.3)
25 (75.8%)
0 (0.0%)
Secret Handshake Secret Handshake
32
306 (avg. 9.6)
25 (78.1%)
1 (3.1%)
Run Length Encoding Run Length Encoding
7
14 (avg. 2.0)
5 (71.4%)
0 (0.0%)
Knapsack Knapsack
6
40 (avg. 6.7)
4 (66.7%)
0 (0.0%)
Two Bucket Two Bucket
7
56 (avg. 8.0)
3 (42.9%)
0 (0.0%)
Change Change
5
81 (avg. 16.2)
3 (60.0%)
0 (0.0%)
Affine Cipher Affine Cipher
5
47 (avg. 9.4)
3 (60.0%)
0 (0.0%)
Spiral Matrix Spiral Matrix
5
4 (avg. 0.8)
3 (60.0%)
0 (0.0%)
Armstrong Numbers Armstrong Numbers
11
54 (avg. 4.9)
10 (90.9%)
0 (0.0%)
Perfect Numbers Perfect Numbers
8
20 (avg. 2.5)
7 (87.5%)
0 (0.0%)
Strain Strain
7
10 (avg. 1.4)
6 (85.7%)
0 (0.0%)
Connect Connect
7
51 (avg. 7.3)
3 (42.9%)
0 (0.0%)
Difference of Squares Difference of Squares
9
17 (avg. 1.9)
7 (77.8%)
1 (11.1%)
Binary Search Binary Search
32
216 (avg. 6.8)
24 (75.0%)
0 (0.0%)
Accumulate Accumulate
45
105 (avg. 2.3)
37 (82.2%)
0 (0.0%)
Word Search Word Search
7
45 (avg. 6.4)
4 (57.1%)
0 (0.0%)
Book Store Book Store
4
10 (avg. 2.5)
2 (50.0%)
0 (0.0%)
Simple Linked List Simple Linked List
29
296 (avg. 10.2)
18 (62.1%)
1 (3.4%)
Killer Sudoku Helper Killer Sudoku Helper
6
9 (avg. 1.5)
3 (50.0%)
0 (0.0%)
Minesweeper Minesweeper
6
19 (avg. 3.2)
4 (66.7%)
0 (0.0%)
RNA Transcription RNA Transcription
20
103 (avg. 5.2)
18 (90.0%)
0 (0.0%)
Roman Numerals Roman Numerals
6
26 (avg. 4.3)
3 (50.0%)
0 (0.0%)
ETL ETL
10
34 (avg. 3.4)
8 (80.0%)
0 (0.0%)
Linked List Linked List
13
116 (avg. 8.9)
6 (46.2%)
0 (0.0%)
All Your Base All Your Base
8
53 (avg. 6.6)
6 (75.0%)
0 (0.0%)
Matrix Matrix
5
7 (avg. 1.4)
3 (60.0%)
0 (0.0%)
Gigasecond Gigasecond
18
41 (avg. 2.3)
15 (83.3%)
1 (5.6%)
Rectangles Rectangles
5
33 (avg. 6.6)
2 (40.0%)
0 (0.0%)
Rail Fence Cipher Rail Fence Cipher
5
8 (avg. 1.6)
2 (40.0%)
0 (0.0%)
Palindrome Products Palindrome Products
5
50 (avg. 10.0)
3 (60.0%)
0 (0.0%)
Say Say
4
40 (avg. 10.0)
2 (50.0%)
0 (0.0%)
Circular Buffer Circular Buffer
6
16 (avg. 2.7)
2 (33.3%)
0 (0.0%)
Parallel Letter Frequency Parallel Letter Frequency
5
28 (avg. 5.6)
3 (60.0%)
0 (0.0%)
Allergies Allergies
5
32 (avg. 6.4)
1 (20.0%)
0 (0.0%)
45 unimplemented practice exercises
Alphametics Alphametics
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Anagram Anagram
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Bank Account Bank Account
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Binary Search Tree Binary Search Tree
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Bottle Song Bottle Song
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Conway's Game of Life Conway's Game of Life
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D&D Character D&D Character
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Dominoes Dominoes
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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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Food Chain Food Chain
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Forth Forth
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Go Counting Go Counting
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Grep Grep
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Hangman Hangman
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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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Markdown Markdown
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OCR Numbers OCR Numbers
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PaaS I/O PaaS I/O
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Pig Latin Pig Latin
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Poker Poker
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POV POV
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Proverb Proverb
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React React
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Resistor Color Trio Resistor Color Trio
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REST API REST API
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Robot Simulator Robot Simulator
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Satellite Satellite
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Series Series
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SGF Parsing SGF Parsing
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Simple Cipher Simple Cipher
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State of Tic-Tac-Toe State of Tic-Tac-Toe
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Sum of Multiples Sum of Multiples
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Tournament Tournament
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Transpose Transpose
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Tree Building Tree Building
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Twelve Days Twelve Days
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Word Count Word Count
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Yacht Yacht
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Zebra Puzzle Zebra Puzzle
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Zipper Zipper
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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: d00c8023a4b1f6fe78fc3619bbc43e00aaf381c4 (Takes up to 10 mins to deploy)

Next goal: Get Test Runners to Version 2. V is currently utilising a Version 1 Test Runner. Find out more.
Total Test Runner Runs
13,522
Test Run Pass Rate
25.9% (3496)
Test Run Fail Rate
27.3% (3695)
Test Run Error Rate
46.8% (6331)

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.

Next goal: Build a Representer. Find out more.

Analyzer

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

Next goal: Build an Analyzer. Find out more.