Swift impact and status on Exercism

Swift

25,134 students

About Swift

Learn

Practice

127 contributors

352 mentors

Swift Track Management

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

Students

25,134

Submissions

389,155

Mentoring Discussions

3,345

The Swift track needs attention ⚠️

Building

Swift syllabus

Learn More

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 40 concepts. Find out more.

35 concepts being taught

Basics

5,302 learnt

Booleans

2,194 learnt

Numbers

2,868 learnt

Characters and Strings

2,421 learnt

Escaping functions

1,905 learnt

Higher Order Functions

1,905 learnt

Conditionals

1,833 learnt

Ternary operator

1,833 learnt

Arrays

1,378 learnt

Tuples

1,217 learnt

Optionals

1,014 learnt

Control transfer

702 learnt

for loops

702 learnt

Loops

702 learnt

repeat while

702 learnt

while loops

702 learnt

Capturing

551 learnt

Closures

551 learnt

Shorthand arguments

551 learnt

Trailing closures

551 learnt

Dictionaries

674 learnt

Importing

653 learnt

String Components

653 learnt

String Indexing

653 learnt

Default Parameters

863 learnt

Function Overloading

863 learnt

Inout Parameters

863 learnt

Multiple Return Values

863 learnt

Nested Functions

863 learnt

Variadic Parameters

863 learnt

Methods

541 learnt

Self

541 learnt

Structs And Classes

541 learnt

Value and reference types

541 learnt

Enumerations

479 learnt

16 active learning exercises

Started

Attempts

Completions

Mentoring requests

Layers of Lasagna

7,656

43,395 (avg. 5.7)

5,302 (69.3%)

80 (1.0%)

Wings Quest

2,542

11,797 (avg. 4.6)

2,194 (86.3%)

33 (1.3%)

Freelancer Rates

3,733

47,390 (avg. 12.7)

2,868 (76.8%)

47 (1.3%)

Cal's Custom Sign Shop

2,793

25,247 (avg. 9.0)

2,421 (86.7%)

15 (0.5%)

Secret Agent Double-Null0111

2,390

11,350 (avg. 4.7)

1,905 (79.7%)

23 (1.0%)

Vexing Vehicle Purchase

2,306

24,322 (avg. 10.5)

1,833 (79.5%)

32 (1.4%)

Magician-in-Training

1,570

20,753 (avg. 13.2)

1,378 (87.8%)

26 (1.7%)

Santa's Swifty Helper

1,269

4,922 (avg. 3.9)

1,217 (95.9%)

8 (0.6%)

Slice Sizing

1,149

16,428 (avg. 14.3)

1,014 (88.3%)

27 (2.3%)

Master Mixologist

827

11,007 (avg. 13.3)

702 (84.9%)

16 (1.9%)

Double-Null0111: Closures Are Forever

642

5,098 (avg. 7.9)

551 (85.8%)

8 (1.2%)

High Score Board

734

5,079 (avg. 6.9)

674 (91.8%)

5 (0.7%)

The 1st Rule of Poetry Club

743

7,995 (avg. 10.8)

653 (87.9%)

6 (0.8%)

Lasagna Master

934

8,656 (avg. 9.3)

863 (92.4%)

17 (1.8%)

Windowing System

632

7,689 (avg. 12.2)

541 (85.6%)

9 (1.4%)

Log Lines

512

2,157 (avg. 4.2)

479 (93.6%)

2 (0.4%)

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: bd0709a1f95466e65794625102a8b92dd88f0590 (Updates should be instant)

Next goal: Implement 136 practice exercises. Find out more.

87 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

17,397

38,185 (avg. 2.2)

12,796 (73.6%)

16 (0.1%)

Difference of Squares

2,275

8,290 (avg. 3.6)

1,527 (67.1%)

224 (9.8%)

Gigasecond

2,021

3,794 (avg. 1.9)

1,387 (68.6%)

276 (13.7%)

Leap

2,964

6,513 (avg. 2.2)

2,492 (84.1%)

585 (19.7%)

RNA Transcription

1,337

3,366 (avg. 2.5)

1,101 (82.3%)

155 (11.6%)

Space Age

1,039

2,324 (avg. 2.2)

875 (84.2%)

95 (9.1%)

Sum of Multiples

1,126

3,166 (avg. 2.8)

926 (82.2%)

120 (10.7%)

Two Fer

2,381

4,176 (avg. 1.8)

1,884 (79.1%)

921 (38.7%)

Reverse String

265

815 (avg. 3.1)

219 (82.6%)

2 (0.8%)

Accumulate

965

2,212 (avg. 2.3)

701 (72.6%)

42 (4.4%)

Darts

230 (avg. 3.5)

50 (75.8%)

1 (1.5%)

Bob

977

3,546 (avg. 3.6)

812 (83.1%)

87 (8.9%)

ETL

769

1,451 (avg. 1.9)

674 (87.6%)

19 (2.5%)

Armstrong Numbers

371 (avg. 6.3)

50 (84.7%)

1 (1.7%)

Grade School

739

2,411 (avg. 3.3)

600 (81.2%)

26 (3.5%)

Grains

715

2,411 (avg. 3.4)

607 (84.9%)

61 (8.5%)

Hamming

890

2,010 (avg. 2.3)

823 (92.5%)

75 (8.4%)

Isogram

620

1,481 (avg. 2.4)

528 (85.2%)

17 (2.7%)

List Ops

657

5,013 (avg. 7.6)

474 (72.1%)

15 (2.3%)

Nucleotide Count

1,054

2,266 (avg. 2.1)

795 (75.4%)

63 (6.0%)

Raindrops

772

1,493 (avg. 1.9)

663 (85.9%)

31 (4.0%)

Binary Search

390

1,110 (avg. 2.8)

300 (76.9%)

3 (0.8%)

Circular Buffer

293

1,425 (avg. 4.9)

214 (73.0%)

3 (1.0%)

Clock

486

1,560 (avg. 3.2)

379 (78.0%)

12 (2.5%)

Collatz Conjecture

301

801 (avg. 2.7)

256 (85.0%)

4 (1.3%)

Diamond

276

848 (avg. 3.1)

203 (73.6%)

1 (0.4%)

Flatten Array

329

1,021 (avg. 3.1)

259 (78.7%)

7 (2.1%)

ISBN Verifier

268

918 (avg. 3.4)

210 (78.4%)

6 (2.2%)

Kindergarten Garden

333

746 (avg. 2.2)

276 (82.9%)

5 (1.5%)

Perfect Numbers

342

1,067 (avg. 3.1)

296 (86.5%)

7 (2.0%)

Phone Number

490

1,844 (avg. 3.8)

411 (83.9%)

10 (2.0%)

Protein Translation

258

945 (avg. 3.7)

195 (75.6%)

5 (1.9%)

Proverb

214

636 (avg. 3.0)

169 (79.0%)

3 (1.4%)

Queen Attack

317

738 (avg. 2.3)

269 (84.9%)

5 (1.6%)

Robot Name

471

923 (avg. 2.0)

385 (81.7%)

7 (1.5%)

Robot Simulator

312

714 (avg. 2.3)

245 (78.5%)

9 (2.9%)

Scale Generator

175

352 (avg. 2.0)

107 (61.1%)

1 (0.6%)

Scrabble Score

446

1,137 (avg. 2.5)

386 (86.5%)

6 (1.3%)

Secret Handshake

252

424 (avg. 1.7)

204 (81.0%)

1 (0.4%)

Sieve

296

629 (avg. 2.1)

251 (84.8%)

1 (0.3%)

Strain

304

450 (avg. 1.5)

250 (82.2%)

2 (0.7%)

Sublist

253

716 (avg. 2.8)

188 (74.3%)

3 (1.2%)

Triangle

473

1,301 (avg. 2.8)

399 (84.4%)

6 (1.3%)

Bottle Song

511 (avg. 7.3)

42 (60.0%)

2 (2.9%)

Acronym

342

1,216 (avg. 3.6)

222 (64.9%)

7 (2.0%)

All Your Base

222

641 (avg. 2.9)

144 (64.9%)

1 (0.5%)

Allergies

365

887 (avg. 2.4)

272 (74.5%)

7 (1.9%)

Anagram

399

1,030 (avg. 2.6)

338 (84.7%)

9 (2.3%)

House

164

372 (avg. 2.3)

115 (70.1%)

1 (0.6%)

Largest Series Product

181

618 (avg. 3.4)

134 (74.0%)

6 (3.3%)

Matrix

221

414 (avg. 1.9)

161 (72.9%)

0 (0.0%)

Meetup

197

415 (avg. 2.1)

128 (65.0%)

1 (0.5%)

Pangram

193

445 (avg. 2.3)

151 (78.2%)

4 (2.1%)

Pascal's Triangle

169

293 (avg. 1.7)

116 (68.6%)

1 (0.6%)

Prime Factors

175

312 (avg. 1.8)

131 (74.9%)

3 (1.7%)

Pythagorean Triplet

173

559 (avg. 3.2)

121 (69.9%)

3 (1.7%)

Rotational Cipher

132

404 (avg. 3.1)

95 (72.0%)

2 (1.5%)

Saddle Points

141

443 (avg. 3.1)

103 (73.0%)

2 (1.4%)

Say

107

362 (avg. 3.4)

67 (62.6%)

1 (0.9%)

Series

211

515 (avg. 2.4)

157 (74.4%)

1 (0.5%)

Simple Linked List

211

629 (avg. 3.0)

145 (68.7%)

0 (0.0%)

Twelve Days

229

388 (avg. 1.7)

169 (73.8%)

1 (0.4%)

Word Count

531

872 (avg. 1.6)

422 (79.5%)

12 (2.3%)

Atbash Cipher

122

464 (avg. 3.8)

94 (77.0%)

1 (0.8%)

Binary Search Tree

172

737 (avg. 4.3)

117 (68.0%)

3 (1.7%)

Crypto Square

117

455 (avg. 3.9)

82 (70.1%)

0 (0.0%)

Custom Set

137

369 (avg. 2.7)

85 (62.0%)

1 (0.7%)

Food Chain

200 (avg. 2.1)

63 (67.0%)

0 (0.0%)

Knapsack

98 (avg. 3.8)

14 (53.8%)

0 (0.0%)

Linked List

156

422 (avg. 2.7)

105 (67.3%)

6 (3.8%)

Luhn

143

541 (avg. 3.8)

105 (73.4%)

5 (3.5%)

OCR Numbers

102

249 (avg. 2.4)

64 (62.7%)

2 (2.0%)

Roman Numerals

164

374 (avg. 2.3)

117 (71.3%)

3 (1.8%)

Run-Length Encoding

118

352 (avg. 3.0)

84 (71.2%)

1 (0.8%)

Simple Cipher

107

242 (avg. 2.3)

68 (63.6%)

0 (0.0%)

Bowling

113

337 (avg. 3.0)

59 (52.2%)

0 (0.0%)

Complex Numbers

161 (avg. 1.8)

55 (62.5%)

0 (0.0%)

Nth Prime

134

375 (avg. 2.8)

94 (70.1%)

1 (0.7%)

Palindrome Products

102

487 (avg. 4.8)

68 (66.7%)

0 (0.0%)

Pig Latin

103

255 (avg. 2.5)

65 (63.1%)

0 (0.0%)

Tournament

101

366 (avg. 3.6)

73 (72.3%)

2 (2.0%)

Transpose

288 (avg. 3.0)

59 (60.8%)

0 (0.0%)

Matching Brackets

131

336 (avg. 2.6)

97 (74.0%)

1 (0.8%)

Dominoes

155 (avg. 1.6)

57 (57.6%)

0 (0.0%)

Minesweeper

119

321 (avg. 2.7)

76 (63.9%)

2 (1.7%)

Wordy

129

367 (avg. 2.8)

85 (65.9%)

4 (3.1%)

Poker

292

429 (avg. 1.5)

65 (22.3%)

1 (0.3%)

5 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Beer Song

182

253 (avg. 1.4)

133 (73.1%)

1 (0.5%)

Binary

35 (avg. 1.5)

23 (100.0%)

0 (0.0%)

Hexadecimal

6 (avg. 1.0)

6 (100.0%)

0 (0.0%)

Octal

18 (avg. 1.3)

14 (100.0%)

0 (0.0%)

Trinary

23 (avg. 1.4)

17 (100.0%)

0 (0.0%)

49 unimplemented practice exercises

Affine Cipher

Alphametics

Baffling Birthdays

Bank Account

Book Store

Change

Connect

Conway's Game of Life

D&D Character

DOT DSL

Eliud's Eggs

Error Handling

Forth

Go Counting

Grep

Hangman

High Scores

Intergalactic Transmission

Killer Sudoku Helper

Ledger

Lens Person

Markdown

Micro Blog

PaaS I/O

Parallel Letter Frequency

POV

Rail Fence Cipher

Rational Numbers

React

Rectangles

Relative Distance

Resistor Color

Resistor Color Duo

Resistor Color Trio

REST API

Satellite

SGF Parsing

Spiral Matrix

Split-Second Stopwatch

Square Root

State of Tic-Tac-Toe

Swift Scheduling

Tree Building

Two Bucket

Variable Length Quantity

Word Search

Yacht

Zebra Puzzle

Zipper

Programming Tags

Learn More

Help manage the tags used to group, filter and recommend solutions, approaches and articles.

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: 50bc68d2cbbc436c17a8af6d001266c7d168874a (Takes up to 10 mins to deploy)

Total Test Runner Runs

373,613

Test Run Pass Rate

17.3% (64471)

Test Run Fail Rate

23.3% (87167)

Test Run Error Rate

59.4% (221975)

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.

Next goal: Build a Representer. Find out more.

Analyzer

Learn More

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

Next goal: Build an Analyzer. Find out more.

Volunteers

323

masters3d

3,038

wneumann

2,635

alphatroya

2,225

+ 307 more

We 💙 our volunteers

Exercism relies on open-source volunteers to build our language tracks and mentor students.

Become an Exercism Volunteer

Language Tracks

Coding Fundamentals

Front-end Fundamentals

Your Journey

Exercism Perks

Community Videos

Brief Introduction Series

Interviews & Stories

Discord

Forum

Getting started

Mentoring

Docs

Contributors

Donate

About Exercism

Our Impact

Insiders

Swift Track Management

The Swift track needs attention ⚠️

Swift syllabus

Practice Exercises

Programming Tags

Test Runner

Representer

Analyzer

We 💙 our volunteers