Common Lisp impact and status on Exercism

Create the Common Lisp syllabus

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 30 concepts. Find out more.

Usage statistics

27 concepts being taught

Co

Comments

769 learnt

Co

Cons

769 learnt

Ex

Expressions

769 learnt

Sy

Symbols

769 learnt

Eq

Equality

122 learnt

Ar

Arithmetic

576 learnt

Fl

Floating Point Numbers

576 learnt

In

Integers

576 learnt

Li

Lists

440 learnt

Co

Conditionals

327 learnt

Tr

Truthy And Falsy

327 learnt

Fu

Functions

306 learnt

Ke

Keyword Parameters

172 learnt

La

Lambda List

172 learnt

Op

Optional Parameters

172 learnt

Re

Rest-Parameters

172 learnt

St

Strings

180 learnt

Ch

Characters

154 learnt

Ar

Arrays

153 learnt

Ve

Vectors

153 learnt

Ha

Hash Tables

148 learnt

Fi

Filtering

137 learnt

Ma

Mapping

137 learnt

Da

Date and Time

154 learnt

Mu

Multiple Values

154 learnt

Re

Reducing

95 learnt

Fo

Format - Basics

91 learnt

15 active learning exercises

Started

Attempts

Completions

Mentoring requests

Sorting Socks and Sexprs

1,191

6,844 (avg. 5.7)

769 (64.6%)

5 (0.4%)

The Key to Comparison

129

776 (avg. 6.0)

122 (94.6%)

1 (0.8%)

Pizza Pi

644

6,885 (avg. 10.7)

576 (89.4%)

10 (1.6%)

Leslie's Lengthy Lists

474

3,874 (avg. 8.2)

440 (92.8%)

7 (1.5%)

Pal Picker

350

3,698 (avg. 10.6)

327 (93.4%)

6 (1.7%)

Lilly's Lasagna

315

1,819 (avg. 5.8)

306 (97.1%)

2 (0.6%)

Lilly's Lasagna Leftovers

194

2,334 (avg. 12.0)

172 (88.7%)

4 (2.1%)

Log Levels

193

1,370 (avg. 7.1)

180 (93.3%)

3 (1.6%)

Character Study

161

862 (avg. 5.4)

154 (95.7%)

1 (0.6%)

Larry's Winning Checker

172

2,360 (avg. 13.7)

153 (89.0%)

4 (2.3%)

High Scores

157

1,073 (avg. 6.8)

148 (94.3%)

1 (0.6%)

Lucy's Magnificent Mapper

141

568 (avg. 4.0)

137 (97.2%)

2 (1.4%)

Gigasecond Anniversary

177

1,286 (avg. 7.3)

154 (87.0%)

1 (0.6%)

Logan's Numeric Partition

111

1,292 (avg. 11.6)

95 (85.6%)

2 (1.8%)

Reporting for Duty

96

613 (avg. 6.4)

91 (94.8%)

1 (1.0%)

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 3. Common Lisp is currently utilising a Version 2 Test Runner. Find out more.

Usage statistics

Total Test Runner Runs

56,934

Test Run Pass Rate

21.9% (12453)

Test Run Fail Rate

67.6% (38472)

Test Run Error Rate

10.6% (6009)

Build Analyzers

Learn More

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

Usage statistics

Total Analyzer Runs

10,277

Total Analysis Comments Made

0

Feedback Given Frequency

0.0%

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.

Usage statistics

Total Representer Runs

10,276

Total Representation Comments Made

1,584

Feedback Given Frequency

15.4%

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 121 practice exercises. Find out more.

Usage statistics

68 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

2,672

3,503 (avg. 1.3)

2,098 (78.5%)

8 (0.3%)

Two Fer

500

1,151 (avg. 2.3)

395 (79.0%)

241 (48.2%)

Hamming

662

1,885 (avg. 2.8)

554 (83.7%)

362 (54.7%)

RNA Transcription

385

892 (avg. 2.3)

334 (86.8%)

184 (47.8%)

Leap

520

1,259 (avg. 2.4)

485 (93.3%)

242 (46.5%)

Anagram

253

794 (avg. 3.1)

212 (83.8%)

113 (44.7%)

Beer Song

227

1,073 (avg. 4.7)

190 (83.7%)

100 (44.1%)

Roman Numerals

217

602 (avg. 2.8)

188 (86.6%)

89 (41.0%)

Word Count

206

700 (avg. 3.4)

161 (78.2%)

92 (44.7%)

Bob

254

731 (avg. 2.9)

207 (81.5%)

137 (53.9%)

Twelve Days

82

290 (avg. 3.5)

68 (82.9%)

8 (9.8%)

Acronym

237

468 (avg. 2.0)

166 (70.0%)

47 (19.8%)

All Your Base

329

1,629 (avg. 5.0)

140 (42.6%)

20 (6.1%)

Allergies

96

362 (avg. 3.8)

77 (80.2%)

11 (11.5%)

Armstrong Numbers

92

212 (avg. 2.3)

77 (83.7%)

3 (3.3%)

Binary Search

65

330 (avg. 5.1)

54 (83.1%)

4 (6.2%)

Collatz Conjecture

217

900 (avg. 4.1)

172 (79.3%)

29 (13.4%)

Difference of Squares

193

633 (avg. 3.3)

162 (83.9%)

12 (6.2%)

ETL

129

326 (avg. 2.5)

97 (75.2%)

17 (13.2%)

Grains

314

791 (avg. 2.5)

292 (93.0%)

55 (17.5%)

Isogram

94

229 (avg. 2.4)

80 (85.1%)

14 (14.9%)

Nucleotide Count

116

290 (avg. 2.5)

92 (79.3%)

19 (16.4%)

Pascal's Triangle

120

541 (avg. 4.5)

83 (69.2%)

11 (9.2%)

Perfect Numbers

108

363 (avg. 3.4)

89 (82.4%)

9 (8.3%)

Raindrops

147

304 (avg. 2.1)

120 (81.6%)

28 (19.0%)

Scrabble Score

89

164 (avg. 1.8)

75 (84.3%)

8 (9.0%)

Sieve

104

314 (avg. 3.0)

84 (80.8%)

27 (26.0%)

Space Age

162

488 (avg. 3.0)

134 (82.7%)

23 (14.2%)

Strain

96

155 (avg. 1.6)

83 (86.5%)

11 (11.5%)

Sublist

241

901 (avg. 3.7)

143 (59.3%)

30 (12.4%)

Triangle

103

299 (avg. 2.9)

82 (79.6%)

14 (13.6%)

Atbash Cipher

80

200 (avg. 2.5)

64 (80.0%)

4 (5.0%)

Grade School

123

371 (avg. 3.0)

90 (73.2%)

22 (17.9%)

Phone Number

121

240 (avg. 2.0)

101 (83.5%)

20 (16.5%)

Prime Factors

90

183 (avg. 2.0)

68 (75.6%)

12 (13.3%)

Robot Name

151

299 (avg. 2.0)

128 (84.8%)

58 (38.4%)

Robot Simulator

63

173 (avg. 2.7)

46 (73.0%)

4 (6.3%)

Crypto Square

73

286 (avg. 3.9)

54 (74.0%)

8 (11.0%)

Meetup

77

205 (avg. 2.7)

54 (70.1%)

8 (10.4%)

Luhn

174

385 (avg. 2.2)

124 (71.3%)

23 (13.2%)

Book Store

23

202 (avg. 8.8)

16 (69.6%)

2 (8.7%)

ISBN Verifier

24

101 (avg. 4.2)

23 (95.8%)

0 (0.0%)

Sum of Multiples

40

121 (avg. 3.0)

32 (80.0%)

1 (2.5%)

Matching Brackets

23

107 (avg. 4.7)

22 (95.7%)

0 (0.0%)

Run-Length Encoding

19

161 (avg. 8.5)

16 (84.2%)

1 (5.3%)

Largest Series Product

17

85 (avg. 5.0)

16 (94.1%)

0 (0.0%)

Queen Attack

23

78 (avg. 3.4)

21 (91.3%)

0 (0.0%)

Nth Prime

37

120 (avg. 3.2)

28 (75.7%)

0 (0.0%)

Knapsack

15

50 (avg. 3.3)

14 (93.3%)

0 (0.0%)

Rail Fence Cipher

14

126 (avg. 9.0)

12 (85.7%)

0 (0.0%)

Pig Latin

13

123 (avg. 9.5)

11 (84.6%)

0 (0.0%)

Protein Translation

18

121 (avg. 6.7)

14 (77.8%)

0 (0.0%)

Saddle Points

15

73 (avg. 4.9)

12 (80.0%)

0 (0.0%)

Matrix

12

93 (avg. 7.8)

11 (91.7%)

0 (0.0%)

Palindrome Products

16

159 (avg. 9.9)

13 (81.3%)

0 (0.0%)

Pythagorean Triplet

20

104 (avg. 5.2)

15 (75.0%)

1 (5.0%)

Affine Cipher

13

155 (avg. 11.9)

12 (92.3%)

0 (0.0%)

Say

15

28 (avg. 1.9)

13 (86.7%)

0 (0.0%)

Two Bucket

15

157 (avg. 10.5)

10 (66.7%)

2 (13.3%)

Flatten Array

17

41 (avg. 2.4)

17 (100.0%)

0 (0.0%)

Spiral Matrix

13

56 (avg. 4.3)

12 (92.3%)

0 (0.0%)

Diamond

12

110 (avg. 9.2)

11 (91.7%)

0 (0.0%)

Rotational Cipher

19

47 (avg. 2.5)

16 (84.2%)

0 (0.0%)

Pangram

18

67 (avg. 3.7)

17 (94.4%)

0 (0.0%)

Secret Handshake

23

60 (avg. 2.6)

20 (87.0%)

0 (0.0%)

Darts

49

208 (avg. 4.2)

45 (91.8%)

0 (0.0%)

Proverb

15

70 (avg. 4.7)

15 (100.0%)

0 (0.0%)

Food Chain

13

91 (avg. 7.0)

10 (76.9%)

0 (0.0%)

3 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Binary

71

137 (avg. 1.9)

55 (77.5%)

12 (16.9%)

Gigasecond

176

227 (avg. 1.3)

147 (83.5%)

40 (22.7%)

Trinary

59

85 (avg. 1.4)

47 (79.7%)

8 (13.6%)

53 unimplemented practice exercises

Alphametics

Binary Search Tree

Bottle Song

Bowling

Change

Circular Buffer

Clock

Complex Numbers

Connect

Custom Set

D&D Character

DOT DSL

Dominoes

Error Handling

Forth

Go Counting

Grep

Hangman

High Scores

House

Killer Sudoku Helper

Kindergarten Garden

Ledger

Markdown

Micro Blog

Minesweeper

OCR Numbers

POV

PaaS I/O

Poker

REST API

Rational Numbers

React

Rectangles

Resistor Color

Resistor Color Duo

Resistor Color Trio

SGF Parsing

Satellite

Scale Generator

Series

Simple Cipher

Square Root

State of Tic-Tac-Toe

Tournament

Transpose

Tree Building

Variable Length Quantity

Word Search

Wordy

Yacht

Zebra Puzzle

Zipper

8 foregone practice exercises

Accumulate

Bank Account

Lens Person

Linked List

List Ops

Parallel Letter Frequency

View data

Reverse String

View data

Simple Linked List

View data

4,244
students have developed their Common Lisp skills on Exercism.

The Common Lisp track needs attention ⚠️

Build

Create the Common Lisp syllabus

Usage statistics

Build Test Runners

Usage statistics

Build Analyzers

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Build Representers

Usage statistics

Create Practice Exercises

Usage statistics

We 💙 our volunteers

4,244 students have developed their Common Lisp skills on Exercism.

The Common Lisp track needs attention ⚠️

Build

Create the Common Lisp syllabus

Usage statistics

Build Test Runners

Usage statistics

Build Analyzers

Usage statistics

Build Representers

Usage statistics

Create Practice Exercises

Usage statistics

We 💙 our volunteers

4,244
students have developed their Common Lisp skills on Exercism.