V Track Management

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

Students
503
Submissions
12,786
Mentoring Discussions
37

The V track needs attention ⚠️

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: d73b0701ac4bb63d33eedb07441bbe92f2695d1d (Updates should be instant)

Next goal: Implement 130 practice exercises. Find out more.
77 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
440
628 (avg. 1.4)
388 (88.2%)
0 (0.0%)
Leap Leap
281
801 (avg. 2.9)
206 (73.3%)
6 (2.1%)
Collatz Conjecture Collatz Conjecture
146
1,019 (avg. 7.0)
118 (80.8%)
7 (4.8%)
Reverse String Reverse String
189
588 (avg. 3.1)
163 (86.2%)
4 (2.1%)
Darts Darts
55
260 (avg. 4.7)
40 (72.7%)
2 (3.6%)
Kindergarten Garden Kindergarten Garden
18
74 (avg. 4.1)
12 (66.7%)
1 (5.6%)
Luhn Luhn
32
262 (avg. 8.2)
27 (84.4%)
1 (3.1%)
Resistor Color Resistor Color
35
113 (avg. 3.2)
28 (80.0%)
1 (2.9%)
Pythagorean Triplet Pythagorean Triplet
10
19 (avg. 1.9)
7 (70.0%)
0 (0.0%)
Eliud's Eggs Eliud's Eggs
9
18 (avg. 2.0)
9 (100.0%)
0 (0.0%)
Space Age Space Age
96
476 (avg. 5.0)
85 (88.5%)
3 (3.1%)
Pascals Triangle Pascals Triangle
12
71 (avg. 5.9)
11 (91.7%)
1 (8.3%)
Sublist Sublist
6
8 (avg. 1.3)
5 (83.3%)
0 (0.0%)
Square Root Square Root
8
32 (avg. 4.0)
7 (87.5%)
0 (0.0%)
Phone Number Phone Number
7
43 (avg. 6.1)
5 (71.4%)
0 (0.0%)
Triangle Triangle
98
451 (avg. 4.6)
85 (86.7%)
2 (2.0%)
Protein Translation Protein Translation
28
137 (avg. 4.9)
21 (75.0%)
1 (3.6%)
Bowling Bowling
6
179 (avg. 29.8)
5 (83.3%)
0 (0.0%)
List Ops List Ops
16
173 (avg. 10.8)
11 (68.8%)
1 (6.3%)
ISBN Verifier ISBN Verifier
14
56 (avg. 4.0)
11 (78.6%)
2 (14.3%)
Custom Set Custom Set
8
63 (avg. 7.9)
6 (75.0%)
0 (0.0%)
Grains Grains
80
857 (avg. 10.7)
65 (81.3%)
4 (5.0%)
Pangram Pangram
79
583 (avg. 7.4)
66 (83.5%)
1 (1.3%)
Rational Numbers Rational Numbers
8
40 (avg. 5.0)
6 (75.0%)
0 (0.0%)
Complex Numbers Complex Numbers
6
25 (avg. 4.2)
5 (83.3%)
1 (16.7%)
Two Fer Two Fer
67
169 (avg. 2.5)
59 (88.1%)
2 (3.0%)
Raindrops Raindrops
62
187 (avg. 3.0)
53 (85.5%)
1 (1.6%)
Variable Length Quantity Variable Length Quantity
9
27 (avg. 3.0)
4 (44.4%)
0 (0.0%)
Grade School Grade School
42
632 (avg. 15.0)
28 (66.7%)
1 (2.4%)
Nucleotide Count Nucleotide Count
49
212 (avg. 4.3)
42 (85.7%)
1 (2.0%)
Largest Series Product Largest Series Product
7
23 (avg. 3.3)
6 (85.7%)
0 (0.0%)
Nth Prime Nth Prime
39
283 (avg. 7.3)
27 (69.2%)
1 (2.6%)
Saddle Points Saddle Points
6
29 (avg. 4.8)
4 (66.7%)
0 (0.0%)
Matching Brackets Matching Brackets
8
44 (avg. 5.5)
7 (87.5%)
0 (0.0%)
Robot Name Robot Name
39
277 (avg. 7.1)
29 (74.4%)
1 (2.6%)
Diamond Diamond
7
18 (avg. 2.6)
5 (71.4%)
0 (0.0%)
Prime Factors Prime Factors
30
135 (avg. 4.5)
27 (90.0%)
1 (3.3%)
Sieve Sieve
38
227 (avg. 6.0)
33 (86.8%)
1 (2.6%)
Acronym Acronym
12
77 (avg. 6.4)
11 (91.7%)
0 (0.0%)
Queen Attack Queen Attack
35
264 (avg. 7.5)
29 (82.9%)
1 (2.9%)
Hamming Hamming
38
128 (avg. 3.4)
33 (86.8%)
0 (0.0%)
Bob Bob
11
124 (avg. 11.3)
10 (90.9%)
0 (0.0%)
Crypto Square Crypto Square
6
104 (avg. 17.3)
4 (66.7%)
0 (0.0%)
Isogram Isogram
43
235 (avg. 5.5)
38 (88.4%)
0 (0.0%)
Scrabble Score Scrabble Score
39
138 (avg. 3.5)
34 (87.2%)
0 (0.0%)
Atbash Cipher Atbash Cipher
7
56 (avg. 8.0)
5 (71.4%)
0 (0.0%)
Meetup Meetup
23
255 (avg. 11.1)
18 (78.3%)
1 (4.3%)
Rotational Cipher Rotational Cipher
5
28 (avg. 5.6)
4 (80.0%)
0 (0.0%)
Resistor Color Duo Resistor Color Duo
7
26 (avg. 3.7)
7 (100.0%)
0 (0.0%)
Clock Clock
32
273 (avg. 8.5)
25 (78.1%)
0 (0.0%)
Secret Handshake Secret Handshake
28
300 (avg. 10.7)
23 (82.1%)
1 (3.6%)
Run Length Encoding Run Length Encoding
4
12 (avg. 3.0)
3 (75.0%)
0 (0.0%)
Knapsack Knapsack
4
39 (avg. 9.8)
3 (75.0%)
0 (0.0%)
Two Bucket Two Bucket
5
56 (avg. 11.2)
3 (60.0%)
0 (0.0%)
Change Change
4
81 (avg. 20.3)
3 (75.0%)
0 (0.0%)
Affine Cipher Affine Cipher
4
47 (avg. 11.8)
3 (75.0%)
0 (0.0%)
Armstrong Numbers Armstrong Numbers
9
53 (avg. 5.9)
9 (100.0%)
0 (0.0%)
Perfect Numbers Perfect Numbers
6
19 (avg. 3.2)
6 (100.0%)
0 (0.0%)
Strain Strain
4
8 (avg. 2.0)
4 (100.0%)
0 (0.0%)
Connect Connect
5
51 (avg. 10.2)
3 (60.0%)
0 (0.0%)
Difference of Squares Difference of Squares
6
10 (avg. 1.7)
6 (100.0%)
0 (0.0%)
Binary Search Binary Search
30
214 (avg. 7.1)
23 (76.7%)
0 (0.0%)
Accumulate Accumulate
42
104 (avg. 2.5)
36 (85.7%)
0 (0.0%)
Word Search Word Search
4
44 (avg. 11.0)
3 (75.0%)
0 (0.0%)
Simple Linked List Simple Linked List
27
295 (avg. 10.9)
17 (63.0%)
1 (3.7%)
Killer Sudoku Helper Killer Sudoku Helper
4
9 (avg. 2.3)
3 (75.0%)
0 (0.0%)
Minesweeper Minesweeper
4
18 (avg. 4.5)
3 (75.0%)
0 (0.0%)
RNA Transcription RNA Transcription
18
102 (avg. 5.7)
17 (94.4%)
0 (0.0%)
ETL ETL
7
33 (avg. 4.7)
7 (100.0%)
0 (0.0%)
Linked List Linked List
12
116 (avg. 9.7)
6 (50.0%)
0 (0.0%)
All Your Base All Your Base
6
52 (avg. 8.7)
5 (83.3%)
0 (0.0%)
Matrix Matrix
3
6 (avg. 2.0)
2 (66.7%)
0 (0.0%)
Gigasecond Gigasecond
16
40 (avg. 2.5)
14 (87.5%)
1 (6.3%)
Rectangles Rectangles
3
33 (avg. 11.0)
2 (66.7%)
0 (0.0%)
Rail Fence Cipher Rail Fence Cipher
3
8 (avg. 2.7)
2 (66.7%)
0 (0.0%)
Palindrome Products Palindrome Products
3
49 (avg. 16.3)
2 (66.7%)
0 (0.0%)
Say Say
3
40 (avg. 13.3)
2 (66.7%)
0 (0.0%)
53 unimplemented practice exercises
Allergies Allergies
Alphametics Alphametics
Anagram Anagram
Bank Account Bank Account
Binary Search Tree Binary Search Tree
Book Store Book Store
Bottle Song Bottle Song
Circular Buffer Circular Buffer
D&D Character D&D Character
Dominoes Dominoes
DOT DSL DOT DSL
Eliud's Eggs Eliud's Eggs
Error Handling Error Handling
Flatten Array Flatten Array
Food Chain Food Chain
Forth Forth
Go Counting Go Counting
Grep Grep
Hangman Hangman
High Scores High Scores
House House
Ledger Ledger
Lens Person Lens Person
Markdown Markdown
Micro Blog Micro Blog
OCR Numbers OCR Numbers
PaaS I/O PaaS I/O
Parallel Letter Frequency Parallel Letter Frequency
Pig Latin Pig Latin
Poker Poker
POV POV
Proverb Proverb
React React
Resistor Color Trio Resistor Color Trio
REST API REST API
Robot Simulator Robot Simulator
Roman Numerals Roman Numerals
Satellite Satellite
Series Series
SGF Parsing SGF Parsing
Simple Cipher Simple Cipher
Spiral Matrix Spiral Matrix
State of Tic-Tac-Toe State of Tic-Tac-Toe
Sum of Multiples Sum of Multiples
Tournament Tournament
Transpose Transpose
Tree Building Tree Building
Twelve Days Twelve Days
Word Count Word Count
Wordy Wordy
Yacht Yacht
Zebra Puzzle Zebra Puzzle
Zipper Zipper

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: a86ec859a79b1eecd7421fefef414986540a2bf8 (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
12,679
Test Run Pass Rate
25.5% (3232)
Test Run Fail Rate
27.7% (3506)
Test Run Error Rate
46.9% (5941)

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.