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Exercises

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10 contributors

19 mentors

320
students have developed their V skills on Exercism.

Students

320

Submissions

7,574

Mentoring Discussions

The V track needs attention ⚠️

Building

Build

Use your knowledge to build the V track itself

10 contributors

Build Test Runners

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Next goal: Get Test Runners to Version 2. V is currently utilising a Version 1 Test Runner. Find out more.

Usage statistics

Total Test Runner Runs

7,526

Test Run Pass Rate

26.1% (1966)

Test Run Fail Rate

27.3% (2052)

Test Run Error Rate

46.6% (3508)

Build Analyzers

Learn More

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.

Build Representers

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.

Create 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.

Next goal: Implement 129 practice exercises. Find out more.

Usage statistics

51 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

266

372 (avg. 1.4)

234 (88.0%)

0 (0.0%)

Leap

175

501 (avg. 2.9)

137 (78.3%)

1 (0.6%)

Collatz Conjecture

469 (avg. 5.6)

70 (83.3%)

5 (6.0%)

Reverse String

120

382 (avg. 3.2)

104 (86.7%)

2 (1.7%)

Darts

14 (avg. 2.8)

5 (100.0%)

0 (0.0%)

Luhn

6 (avg. 1.5)

2 (50.0%)

0 (0.0%)

Resistor Color

3 (avg. 0.8)

3 (75.0%)

0 (0.0%)

Space Age

424 (avg. 5.5)

68 (88.3%)

3 (3.9%)

Triangle

353 (avg. 4.4)

68 (85.0%)

2 (2.5%)

Protein Translation

26 (avg. 6.5)

2 (50.0%)

0 (0.0%)

Grains

753 (avg. 10.9)

55 (79.7%)

2 (2.9%)

Pangram

456 (avg. 6.8)

54 (80.6%)

1 (1.5%)

Two Fer

135 (avg. 2.4)

48 (85.7%)

1 (1.8%)

Raindrops

142 (avg. 2.8)

44 (88.0%)

1 (2.0%)

Variable Length Quantity

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Grade School

565 (avg. 14.9)

26 (68.4%)

1 (2.6%)

Nucleotide Count

192 (avg. 4.5)

36 (83.7%)

1 (2.3%)

Largest Series Product

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Nth Prime

204 (avg. 5.7)

25 (69.4%)

1 (2.8%)

Saddle Points

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Matching Brackets

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Robot Name

229 (avg. 6.7)

24 (70.6%)

0 (0.0%)

Diamond

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Prime Factors

120 (avg. 4.4)

24 (88.9%)

1 (3.7%)

Sieve

217 (avg. 6.4)

29 (85.3%)

1 (2.9%)

Acronym

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Queen Attack

232 (avg. 7.0)

26 (78.8%)

1 (3.0%)

Hamming

110 (avg. 3.2)

29 (85.3%)

0 (0.0%)

Bob

13 (avg. 4.3)

3 (100.0%)

0 (0.0%)

Isogram

202 (avg. 5.6)

32 (88.9%)

0 (0.0%)

Scrabble Score

127 (avg. 3.8)

28 (84.8%)

0 (0.0%)

Atbash Cipher

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Meetup

236 (avg. 10.7)

17 (77.3%)

1 (4.5%)

Resistor Color Duo

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Clock

232 (avg. 7.7)

23 (76.7%)

0 (0.0%)

Secret Handshake

245 (avg. 10.7)

17 (73.9%)

1 (4.3%)

Change

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Connect

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Binary Search

189 (avg. 7.6)

18 (72.0%)

0 (0.0%)

Accumulate

85 (avg. 2.2)

31 (81.6%)

0 (0.0%)

Simple Linked List

196 (avg. 8.2)

13 (54.2%)

1 (4.2%)

Minesweeper

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

RNA Transcription

77 (avg. 6.4)

11 (91.7%)

0 (0.0%)

ETL

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Linked List

19 (avg. 2.1)

4 (44.4%)

0 (0.0%)

All Your Base

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Gigasecond

31 (avg. 2.8)

10 (90.9%)

0 (0.0%)

Rectangles

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Rail Fence Cipher

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Palindrome Products

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Say

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

78 unimplemented practice exercises

Affine Cipher

Allergies

Alphametics

Anagram

Armstrong Numbers

Bank Account

Binary Search Tree

Book Store

Bottle Song

Bowling

Circular Buffer

Complex Numbers

Crypto Square

Custom Set

D&D Character

DOT DSL

Difference of Squares

Dominoes

Error Handling

Flatten Array

Food Chain

Forth

Go Counting

Grep

Hangman

High Scores

House

ISBN Verifier

Killer Sudoku Helper

Kindergarten Garden

Knapsack

Ledger

Lens Person

List Ops

Markdown

Matrix

Micro Blog

OCR Numbers

POV

PaaS I/O

Parallel Letter Frequency

Pascal's Triangle

Perfect Numbers

Phone Number

Pig Latin

Poker

Proverb

Pythagorean Triplet

REST API

Rational Numbers

React

Resistor Color Trio

Robot Simulator

Roman Numerals

Rotational Cipher

Run-Length Encoding

SGF Parsing

Satellite

Scale Generator

Series

Simple Cipher

Spiral Matrix

Square Root

State of Tic-Tac-Toe

Strain

Sublist

Sum of Multiples

Tournament

Transpose

Tree Building

Twelve Days

Two Bucket

Word Count

Word Search

Wordy

Yacht

Zebra Puzzle

Zipper

Volunteers

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1,160

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281

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185

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320 students have developed their V skills on Exercism.

The V track needs attention ⚠️

Build

Build Test Runners

Usage statistics

Build Analyzers

Build Representers

Create Practice Exercises

Usage statistics

We 💙 our volunteers

320
students have developed their V skills on Exercism.