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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
613
Submissions
15,808
Mentoring Discussions
46

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Building

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: 3666799ba7b4b7a77cbd6203321d12ea4ef934b3 (Updates should be instant)

Next goal: Implement 130 practice exercises. Find out more.
93 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
566
821 (avg. 1.5)
488 (86.2%)
0 (0.0%)
Leap Leap
341
954 (avg. 2.8)
247 (72.4%)
7 (2.1%)
Collatz Conjecture Collatz Conjecture
185
1,223 (avg. 6.6)
145 (78.4%)
7 (3.8%)
Sum Of Multiples Sum Of Multiples
16
95 (avg. 5.9)
12 (75.0%)
0 (0.0%)
Reverse String Reverse String
214
651 (avg. 3.0)
183 (85.5%)
4 (1.9%)
Darts Darts
73
303 (avg. 4.2)
56 (76.7%)
2 (2.7%)
Kindergarten Garden Kindergarten Garden
32
116 (avg. 3.6)
23 (71.9%)
1 (3.1%)
Luhn Luhn
47
345 (avg. 7.3)
35 (74.5%)
1 (2.1%)
Micro Blog Micro Blog
15
63 (avg. 4.2)
11 (73.3%)
0 (0.0%)
Resistor Color Resistor Color
46
134 (avg. 2.9)
37 (80.4%)
1 (2.2%)
Pythagorean Triplet Pythagorean Triplet
20
55 (avg. 2.8)
12 (60.0%)
0 (0.0%)
Eliud's Eggs Eliud's Eggs
19
38 (avg. 2.0)
16 (84.2%)
0 (0.0%)
Space Age Space Age
104
502 (avg. 4.8)
92 (88.5%)
3 (2.9%)
Pascal's Triangle Pascal's Triangle
19
79 (avg. 4.2)
14 (73.7%)
1 (5.3%)
Sublist Sublist
13
27 (avg. 2.1)
10 (76.9%)
0 (0.0%)
Square Root Square Root
15
48 (avg. 3.2)
10 (66.7%)
0 (0.0%)
Phone Number Phone Number
15
96 (avg. 6.4)
10 (66.7%)
0 (0.0%)
Triangle Triangle
104
460 (avg. 4.4)
90 (86.5%)
2 (1.9%)
Protein Translation Protein Translation
34
179 (avg. 5.3)
25 (73.5%)
1 (2.9%)
Bowling Bowling
13
280 (avg. 21.5)
6 (46.2%)
0 (0.0%)
List Ops List Ops
23
247 (avg. 10.7)
17 (73.9%)
1 (4.3%)
Wordy Wordy
10
76 (avg. 7.6)
6 (60.0%)
0 (0.0%)
ISBN Verifier ISBN Verifier
20
96 (avg. 4.8)
15 (75.0%)
2 (10.0%)
Custom Set Custom Set
14
214 (avg. 15.3)
10 (71.4%)
0 (0.0%)
Grains Grains
87
893 (avg. 10.3)
69 (79.3%)
4 (4.6%)
Pangram Pangram
84
587 (avg. 7.0)
70 (83.3%)
1 (1.2%)
Rational Numbers Rational Numbers
13
104 (avg. 8.0)
8 (61.5%)
0 (0.0%)
Complex Numbers Complex Numbers
12
58 (avg. 4.8)
8 (66.7%)
1 (8.3%)
Two Fer Two Fer
72
172 (avg. 2.4)
63 (87.5%)
2 (2.8%)
Raindrops Raindrops
67
202 (avg. 3.0)
56 (83.6%)
2 (3.0%)
Variable Length Quantity Variable Length Quantity
14
30 (avg. 2.1)
6 (42.9%)
0 (0.0%)
Grade School Grade School
46
634 (avg. 13.8)
30 (65.2%)
1 (2.2%)
Nucleotide Count Nucleotide Count
54
231 (avg. 4.3)
46 (85.2%)
2 (3.7%)
Largest Series Product Largest Series Product
14
51 (avg. 3.6)
10 (71.4%)
0 (0.0%)
Nth Prime Nth Prime
44
285 (avg. 6.5)
29 (65.9%)
1 (2.3%)
Saddle Points Saddle Points
10
31 (avg. 3.1)
6 (60.0%)
0 (0.0%)
Matching Brackets Matching Brackets
15
81 (avg. 5.4)
12 (80.0%)
0 (0.0%)
Robot Name Robot Name
43
279 (avg. 6.5)
31 (72.1%)
1 (2.3%)
Diamond Diamond
10
19 (avg. 1.9)
6 (60.0%)
0 (0.0%)
Prime Factors Prime Factors
34
137 (avg. 4.0)
29 (85.3%)
1 (2.9%)
Sieve Sieve
44
230 (avg. 5.2)
36 (81.8%)
1 (2.3%)
Acronym Acronym
20
126 (avg. 6.3)
16 (80.0%)
0 (0.0%)
Queen Attack Queen Attack
41
288 (avg. 7.0)
33 (80.5%)
1 (2.4%)
Hamming Hamming
44
158 (avg. 3.6)
37 (84.1%)
0 (0.0%)
Bob Bob
17
185 (avg. 10.9)
13 (76.5%)
0 (0.0%)
Crypto Square Crypto Square
10
106 (avg. 10.6)
6 (60.0%)
0 (0.0%)
Isogram Isogram
49
257 (avg. 5.2)
41 (83.7%)
0 (0.0%)
Scrabble Score Scrabble Score
46
161 (avg. 3.5)
39 (84.8%)
0 (0.0%)
Atbash Cipher Atbash Cipher
11
59 (avg. 5.4)
8 (72.7%)
0 (0.0%)
Meetup Meetup
28
259 (avg. 9.3)
20 (71.4%)
1 (3.6%)
Rotational Cipher Rotational Cipher
10
31 (avg. 3.1)
7 (70.0%)
0 (0.0%)
High Scores High Scores
7
17 (avg. 2.4)
5 (71.4%)
0 (0.0%)
Resistor Color Duo Resistor Color Duo
13
34 (avg. 2.6)
11 (84.6%)
0 (0.0%)
Clock Clock
36
299 (avg. 8.3)
27 (75.0%)
0 (0.0%)
Secret Handshake Secret Handshake
36
328 (avg. 9.1)
27 (75.0%)
1 (2.8%)
Run Length Encoding Run Length Encoding
12
43 (avg. 3.6)
7 (58.3%)
0 (0.0%)
Knapsack Knapsack
10
48 (avg. 4.8)
6 (60.0%)
0 (0.0%)
Two Bucket Two Bucket
11
58 (avg. 5.3)
5 (45.5%)
0 (0.0%)
Change Change
9
187 (avg. 20.8)
5 (55.6%)
0 (0.0%)
Affine Cipher Affine Cipher
7
48 (avg. 6.9)
4 (57.1%)
0 (0.0%)
Spiral Matrix Spiral Matrix
8
25 (avg. 3.1)
5 (62.5%)
1 (12.5%)
Anagram Anagram
6
19 (avg. 3.2)
5 (83.3%)
0 (0.0%)
Armstrong Numbers Armstrong Numbers
13
74 (avg. 5.7)
12 (92.3%)
0 (0.0%)
Perfect Numbers Perfect Numbers
10
40 (avg. 4.0)
9 (90.0%)
0 (0.0%)
Strain Strain
9
14 (avg. 1.6)
8 (88.9%)
0 (0.0%)
Connect Connect
8
52 (avg. 6.5)
4 (50.0%)
0 (0.0%)
Difference of Squares Difference of Squares
11
22 (avg. 2.0)
10 (90.9%)
1 (9.1%)
Binary Search Binary Search
34
233 (avg. 6.9)
26 (76.5%)
0 (0.0%)
Accumulate Accumulate
47
110 (avg. 2.3)
39 (83.0%)
0 (0.0%)
Word Search Word Search
8
46 (avg. 5.8)
5 (62.5%)
0 (0.0%)
Book Store Book Store
6
11 (avg. 1.8)
3 (50.0%)
0 (0.0%)
Simple Linked List Simple Linked List
31
302 (avg. 9.7)
19 (61.3%)
1 (3.2%)
Killer Sudoku Helper Killer Sudoku Helper
7
10 (avg. 1.4)
4 (57.1%)
0 (0.0%)
Minesweeper Minesweeper
7
20 (avg. 2.9)
5 (71.4%)
0 (0.0%)
Game Of Life Game Of Life
4
5 (avg. 1.3)
3 (75.0%)
0 (0.0%)
RNA Transcription RNA Transcription
22
115 (avg. 5.2)
20 (90.9%)
0 (0.0%)
Roman Numerals Roman Numerals
9
81 (avg. 9.0)
7 (77.8%)
0 (0.0%)
Series Series
6
18 (avg. 3.0)
5 (83.3%)
0 (0.0%)
ETL ETL
12
49 (avg. 4.1)
10 (83.3%)
0 (0.0%)
Linked List Linked List
15
117 (avg. 7.8)
7 (46.7%)
0 (0.0%)
All Your Base All Your Base
11
65 (avg. 5.9)
8 (72.7%)
0 (0.0%)
Matrix Matrix
6
8 (avg. 1.3)
4 (66.7%)
0 (0.0%)
Pig Latin Pig Latin
5
68 (avg. 13.6)
4 (80.0%)
1 (20.0%)
Gigasecond Gigasecond
21
42 (avg. 2.0)
16 (76.2%)
1 (4.8%)
Rectangles Rectangles
6
34 (avg. 5.7)
3 (50.0%)
0 (0.0%)
Rail Fence Cipher Rail Fence Cipher
7
82 (avg. 11.7)
4 (57.1%)
0 (0.0%)
Palindrome Products Palindrome Products
6
54 (avg. 9.0)
4 (66.7%)
0 (0.0%)
Say Say
6
96 (avg. 16.0)
4 (66.7%)
0 (0.0%)
Circular Buffer Circular Buffer
9
25 (avg. 2.8)
5 (55.6%)
0 (0.0%)
Parallel Letter Frequency Parallel Letter Frequency
7
63 (avg. 9.0)
5 (71.4%)
0 (0.0%)
Allergies Allergies
8
58 (avg. 7.3)
4 (50.0%)
0 (0.0%)
Zebra Puzzle Zebra Puzzle
6
25 (avg. 4.2)
3 (50.0%)
0 (0.0%)
Yacht Yacht
4
7 (avg. 1.8)
2 (50.0%)
0 (0.0%)
37 unimplemented practice exercises
Alphametics Alphametics
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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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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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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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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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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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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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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: 52fa8dd3392515f8c11d473e66da0236e4d0eeee (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
15,671
Test Run Pass Rate
26.1% (4093)
Test Run Fail Rate
27.3% (4271)
Test Run Error Rate
46.6% (7307)

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.