Common Lisp impact and status on Exercism

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.

27 concepts being taught

Co

Comments

1,859 learnt

Co

Cons

1,859 learnt

Ex

Expressions

1,859 learnt

Sy

Symbols

1,859 learnt

Eq

Equality

343 learnt

Ar

Arithmetic

1,457 learnt

Fl

Floating Point Numbers

1,457 learnt

In

Integers

1,457 learnt

Li

Lists

1,077 learnt

Co

Conditionals

943 learnt

Tr

Truthy And Falsy

943 learnt

Fu

Functions

785 learnt

Ke

Keyword Parameters

475 learnt

La

Lambda List

475 learnt

Op

Optional Parameters

475 learnt

Re

Rest-Parameters

475 learnt

St

Strings

499 learnt

Ch

Characters

420 learnt

Ar

Arrays

402 learnt

Ve

Vectors

402 learnt

Ha

Hash Tables

384 learnt

Fi

Filtering

375 learnt

Ma

Mapping

375 learnt

Da

Date and Time

420 learnt

Mu

Multiple Values

420 learnt

Re

Reducing

285 learnt

Fo

Format - Basics

284 learnt

15 active learning exercises

Started

Attempts

Completions

Mentoring requests

Sorting Socks and Sexprs

2,742

14,709 (avg. 5.4)

1,859 (67.8%)

9 (0.3%)

The Key to Comparison

379

2,132 (avg. 5.6)

343 (90.5%)

1 (0.3%)

Pizza Pi

1,624

17,451 (avg. 10.7)

1,457 (89.7%)

17 (1.0%)

Leslie's Lengthy Lists

1,158

8,918 (avg. 7.7)

1,077 (93.0%)

10 (0.9%)

Pal Picker

1,009

9,305 (avg. 9.2)

943 (93.5%)

11 (1.1%)

Lilly's Lasagna

817

4,661 (avg. 5.7)

785 (96.1%)

3 (0.4%)

Lilly's Lasagna Leftovers

532

6,122 (avg. 11.5)

475 (89.3%)

8 (1.5%)

Log Levels

532

3,919 (avg. 7.4)

499 (93.8%)

8 (1.5%)

Character Study

438

2,023 (avg. 4.6)

420 (95.9%)

1 (0.2%)

Larry's Winning Checker

452

5,647 (avg. 12.5)

402 (88.9%)

11 (2.4%)

High Scores

411

2,360 (avg. 5.7)

384 (93.4%)

3 (0.7%)

Lucy's Magnificent Mapper

386

1,566 (avg. 4.1)

375 (97.2%)

5 (1.3%)

Gigasecond Anniversary

474

3,281 (avg. 6.9)

420 (88.6%)

3 (0.6%)

Logan's Numeric Partition

319

3,229 (avg. 10.1)

285 (89.3%)

5 (1.6%)

Reporting for Duty

296

1,859 (avg. 6.3)

284 (95.9%)

1 (0.3%)

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.

Synced primary repo: e3d4b39fad48f48723bc4ccbfb6c26162bb91682 (Updates should be instant)

Next goal: Implement 126 practice exercises. Find out more.

75 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

5,282

7,005 (avg. 1.3)

4,202 (79.6%)

8 (0.2%)

Two Fer

681

2,006 (avg. 2.9)

568 (83.4%)

242 (35.5%)

Hamming

806

2,693 (avg. 3.3)

684 (84.9%)

367 (45.5%)

House

13

53 (avg. 4.1)

9 (69.2%)

1 (7.7%)

RNA Transcription

510

1,373 (avg. 2.7)

449 (88.0%)

187 (36.7%)

Leap

798

2,231 (avg. 2.8)

755 (94.6%)

246 (30.8%)

Anagram

376

1,328 (avg. 3.5)

322 (85.6%)

116 (30.9%)

Roman Numerals

355

1,315 (avg. 3.7)

300 (84.5%)

92 (25.9%)

Word Count

321

1,540 (avg. 4.8)

247 (76.9%)

100 (31.2%)

Bob

320

1,281 (avg. 4.0)

269 (84.1%)

138 (43.1%)

Twelve Days

157

781 (avg. 5.0)

138 (87.9%)

8 (5.1%)

Acronym

303

790 (avg. 2.6)

227 (74.9%)

49 (16.2%)

All Your Base

619

3,802 (avg. 6.1)

279 (45.1%)

27 (4.4%)

Allergies

169

846 (avg. 5.0)

140 (82.8%)

14 (8.3%)

Armstrong Numbers

183

461 (avg. 2.5)

157 (85.8%)

5 (2.7%)

Binary Search

148

701 (avg. 4.7)

124 (83.8%)

6 (4.1%)

Collatz Conjecture

447

2,534 (avg. 5.7)

360 (80.5%)

35 (7.8%)

Difference of Squares

425

1,558 (avg. 3.7)

373 (87.8%)

14 (3.3%)

ETL

216

613 (avg. 2.8)

178 (82.4%)

17 (7.9%)

Eliud's Eggs

58

149 (avg. 2.6)

35 (60.3%)

2 (3.4%)

Grains

477

1,385 (avg. 2.9)

448 (93.9%)

58 (12.2%)

Isogram

152

402 (avg. 2.6)

135 (88.8%)

14 (9.2%)

Nucleotide Count

196

753 (avg. 3.8)

169 (86.2%)

19 (9.7%)

Pascal's Triangle

227

994 (avg. 4.4)

156 (68.7%)

12 (5.3%)

Perfect Numbers

184

661 (avg. 3.6)

158 (85.9%)

9 (4.9%)

Raindrops

649

5,081 (avg. 7.8)

577 (88.9%)

42 (6.5%)

Scrabble Score

147

405 (avg. 2.8)

130 (88.4%)

9 (6.1%)

Sieve

174

526 (avg. 3.0)

141 (81.0%)

29 (16.7%)

Space Age

283

1,002 (avg. 3.5)

239 (84.5%)

27 (9.5%)

Strain

145

320 (avg. 2.2)

131 (90.3%)

11 (7.6%)

Sublist

390

1,751 (avg. 4.5)

234 (60.0%)

33 (8.5%)

Triangle

162

615 (avg. 3.8)

135 (83.3%)

14 (8.6%)

Atbash Cipher

154

511 (avg. 3.3)

132 (85.7%)

6 (3.9%)

Grade School

190

817 (avg. 4.3)

151 (79.5%)

23 (12.1%)

Phone Number

159

410 (avg. 2.6)

132 (83.0%)

20 (12.6%)

Prime Factors

148

370 (avg. 2.5)

117 (79.1%)

12 (8.1%)

Robot Name

257

763 (avg. 3.0)

224 (87.2%)

60 (23.3%)

Robot Simulator

140

558 (avg. 4.0)

108 (77.1%)

4 (2.9%)

Crypto Square

138

888 (avg. 6.4)

113 (81.9%)

8 (5.8%)

Meetup

144

581 (avg. 4.0)

115 (79.9%)

8 (5.6%)

Luhn

242

639 (avg. 2.6)

188 (77.7%)

25 (10.3%)

Book Store

91

773 (avg. 8.5)

69 (75.8%)

2 (2.2%)

ISBN Verifier

87

313 (avg. 3.6)

79 (90.8%)

0 (0.0%)

Sum of Multiples

105

377 (avg. 3.6)

86 (81.9%)

3 (2.9%)

Matching Brackets

105

639 (avg. 6.1)

98 (93.3%)

0 (0.0%)

Run-Length Encoding

76

383 (avg. 5.0)

69 (90.8%)

1 (1.3%)

Largest Series Product

76

297 (avg. 3.9)

73 (96.1%)

0 (0.0%)

Queen Attack

54

169 (avg. 3.1)

47 (87.0%)

0 (0.0%)

Nth Prime

112

556 (avg. 5.0)

79 (70.5%)

1 (0.9%)

Knapsack

71

235 (avg. 3.3)

66 (93.0%)

0 (0.0%)

Rail Fence Cipher

72

238 (avg. 3.3)

62 (86.1%)

0 (0.0%)

Pig Latin

66

431 (avg. 6.5)

59 (89.4%)

0 (0.0%)

Protein Translation

86

472 (avg. 5.5)

74 (86.0%)

0 (0.0%)

Saddle Points

43

174 (avg. 4.0)

37 (86.0%)

0 (0.0%)

Matrix

71

261 (avg. 3.7)

64 (90.1%)

0 (0.0%)

Palindrome Products

87

419 (avg. 4.8)

72 (82.8%)

2 (2.3%)

Pythagorean Triplet

83

319 (avg. 3.8)

76 (91.6%)

1 (1.2%)

Affine Cipher

75

396 (avg. 5.3)

66 (88.0%)

0 (0.0%)

Say

40

106 (avg. 2.7)

34 (85.0%)

1 (2.5%)

Two Bucket

70

287 (avg. 4.1)

56 (80.0%)

3 (4.3%)

Flatten Array

86

184 (avg. 2.1)

80 (93.0%)

0 (0.0%)

Spiral Matrix

42

162 (avg. 3.9)

39 (92.9%)

0 (0.0%)

Diamond

63

234 (avg. 3.7)

57 (90.5%)

0 (0.0%)

Rotational Cipher

51

163 (avg. 3.2)

47 (92.2%)

0 (0.0%)

Pangram

53

165 (avg. 3.1)

50 (94.3%)

0 (0.0%)

Secret Handshake

60

179 (avg. 3.0)

53 (88.3%)

0 (0.0%)

Darts

149

580 (avg. 3.9)

139 (93.3%)

0 (0.0%)

Proverb

39

146 (avg. 3.7)

39 (100.0%)

0 (0.0%)

Food Chain

60

273 (avg. 4.6)

55 (91.7%)

0 (0.0%)

Yacht

152

1,443 (avg. 9.5)

111 (73.0%)

2 (1.3%)

Bottle Song

11

85 (avg. 7.7)

6 (54.5%)

0 (0.0%)

Square Root

6

4 (avg. 0.7)

4 (66.7%)

0 (0.0%)

Resistor Color

8

30 (avg. 3.8)

6 (75.0%)

0 (0.0%)

Resistor Color Duo

6

18 (avg. 3.0)

5 (83.3%)

0 (0.0%)

Resistor Color Trio

6

37 (avg. 6.2)

4 (66.7%)

0 (0.0%)

4 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Beer Song

318

2,074 (avg. 6.5)

267 (84.0%)

103 (32.4%)

Binary

71

139 (avg. 2.0)

56 (78.9%)

12 (16.9%)

Gigasecond

176

250 (avg. 1.4)

148 (84.1%)

40 (22.7%)

Trinary

59

87 (avg. 1.5)

47 (79.7%)

8 (13.6%)

51 unimplemented practice exercises

Alphametics

Baffling Birthdays

Binary Search Tree

Bowling

Change

Circular Buffer

Clock

Complex Numbers

Connect

Conway's Game of Life

Custom Set

D&D Character

Dominoes

DOT DSL

Error Handling

Forth

Go Counting

Grep

Hangman

High Scores

Intergalactic Transmission

Killer Sudoku Helper

Kindergarten Garden

Ledger

Markdown

Micro Blog

Minesweeper

OCR Numbers

PaaS I/O

Poker

POV

Rational Numbers

React

Rectangles

Relative Distance

REST API

Satellite

Series

SGF Parsing

Simple Cipher

Split-Second Stopwatch

State of Tic-Tac-Toe

Swift Scheduling

Tournament

Transpose

Tree Building

Variable Length Quantity

Word Search

Wordy

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

Programming Tags

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0 tags

Test Runner

Learn More

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

Current version: 9562623cc8fb184881e6b44950b63760294e7153 (Takes up to 10 mins to deploy)

Next goal: Get Test Runners to Version 3. Common Lisp is currently utilising a Version 2 Test Runner. Find out more.

Total Test Runner Runs

147,866

Test Run Pass Rate

21.2% (31316)

Test Run Fail Rate

68.5% (101258)

Test Run Error Rate

10.3% (15292)

Representer

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.

Current version: b4d4ef39ff842f735b563d8a705019dce627e4c5 (Takes up to 10 mins to deploy)

Total Representer Runs

32,088

Total Representation Comments Made

7,973

Feedback Given Frequency

24.8%

Analyzer

Learn More

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

Next goal: Build an Analyzer. Find out more.

Common Lisp Track Management

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Common Lisp syllabus

Practice Exercises

Programming Tags

Test Runner

Representer

Analyzer

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Common Lisp Track Management

The Common Lisp track needs attention ⚠️

Common Lisp syllabus

Practice Exercises

Programming Tags

Test Runner

Representer

Analyzer

We 💙 our volunteers