Wren impact and status on Exercism

Practice Exercises

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: de4202ffd7c282da1cd71eaba768504f23bdcc8d (Updates should be instant)

Next goal: Implement 131 practice exercises. Find out more.

96 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

481

601 (avg. 1.2)

379 (78.8%)

0 (0.0%)

Leap

129

440 (avg. 3.4)

118 (91.5%)

3 (2.3%)

RNA Transcription

77

347 (avg. 4.5)

65 (84.4%)

2 (2.6%)

Resistor Color

113

504 (avg. 4.5)

88 (77.9%)

1 (0.9%)

Strain

10

39 (avg. 3.9)

9 (90.0%)

0 (0.0%)

Two-Fer

205

493 (avg. 2.4)

157 (76.6%)

2 (1.0%)

Acronym

27

216 (avg. 8.0)

23 (85.2%)

1 (3.7%)

Armstrong Numbers

26

138 (avg. 5.3)

22 (84.6%)

1 (3.8%)

Bank Account

27

191 (avg. 7.1)

26 (96.3%)

0 (0.0%)

Binary Search

9

45 (avg. 5.0)

7 (77.8%)

0 (0.0%)

Collatz Conjecture

52

287 (avg. 5.5)

49 (94.2%)

1 (1.9%)

D&D Character

69

762 (avg. 11.0)

63 (91.3%)

0 (0.0%)

Darts

29

82 (avg. 2.8)

27 (93.1%)

1 (3.4%)

Difference of Squares

26

108 (avg. 4.2)

25 (96.2%)

1 (3.8%)

ETL

7

19 (avg. 2.7)

7 (100.0%)

0 (0.0%)

Eliud's Eggs

8

26 (avg. 3.3)

8 (100.0%)

0 (0.0%)

Grains

28

127 (avg. 4.5)

26 (92.9%)

0 (0.0%)

Hamming

88

435 (avg. 4.9)

83 (94.3%)

2 (2.3%)

High Scores

65

695 (avg. 10.7)

53 (81.5%)

2 (3.1%)

Isogram

14

51 (avg. 3.6)

13 (92.9%)

0 (0.0%)

Matching Brackets

16

61 (avg. 3.8)

14 (87.5%)

0 (0.0%)

Nucleotide Count

21

67 (avg. 3.2)

18 (85.7%)

0 (0.0%)

Pangram

11

53 (avg. 4.8)

9 (81.8%)

0 (0.0%)

Protein Translation

20

168 (avg. 8.4)

18 (90.0%)

0 (0.0%)

Raindrops

23

91 (avg. 4.0)

20 (87.0%)

0 (0.0%)

Resistor Color Duo

19

57 (avg. 3.0)

16 (84.2%)

0 (0.0%)

Reverse String

28

140 (avg. 5.0)

25 (89.3%)

1 (3.6%)

Scrabble Score

18

78 (avg. 4.3)

16 (88.9%)

0 (0.0%)

Space Age

16

61 (avg. 3.8)

13 (81.3%)

0 (0.0%)

Sum of Multiples

8

24 (avg. 3.0)

4 (50.0%)

0 (0.0%)

Triangle

36

270 (avg. 7.5)

33 (91.7%)

2 (5.6%)

Word Count

15

111 (avg. 7.4)

12 (80.0%)

0 (0.0%)

Yacht

7

41 (avg. 5.9)

4 (57.1%)

0 (0.0%)

Allergies

18

57 (avg. 3.2)

16 (88.9%)

0 (0.0%)

Anagram

13

96 (avg. 7.4)

10 (76.9%)

0 (0.0%)

Bob

16

73 (avg. 4.6)

13 (81.3%)

1 (6.3%)

Clock

10

74 (avg. 7.4)

7 (70.0%)

0 (0.0%)

Diamond

59

547 (avg. 9.3)

51 (86.4%)

0 (0.0%)

Flatten Array

70

388 (avg. 5.5)

66 (94.3%)

0 (0.0%)

ISBN Verifier

14

67 (avg. 4.8)

12 (85.7%)

0 (0.0%)

Largest Series Product

4

25 (avg. 6.3)

4 (100.0%)

0 (0.0%)

Luhn

12

53 (avg. 4.4)

8 (66.7%)

0 (0.0%)

Perfect Numbers

6

22 (avg. 3.7)

6 (100.0%)

0 (0.0%)

Phone Number

4

68 (avg. 17.0)

3 (75.0%)

0 (0.0%)

Pig Latin

6

33 (avg. 5.5)

4 (66.7%)

0 (0.0%)

Prime Factors

5

11 (avg. 2.2)

4 (80.0%)

0 (0.0%)

Proverb

4

20 (avg. 5.0)

3 (75.0%)

0 (0.0%)

Pythagorean Triplet

6

7 (avg. 1.2)

5 (83.3%)

0 (0.0%)

Resistor Color Trio

12

95 (avg. 7.9)

9 (75.0%)

0 (0.0%)

Roman Numerals

14

36 (avg. 2.6)

11 (78.6%)

0 (0.0%)

Rotational Cipher

6

11 (avg. 1.8)

5 (83.3%)

0 (0.0%)

Secret Handshake

5

33 (avg. 6.6)

5 (100.0%)

0 (0.0%)

Sieve

9

68 (avg. 7.6)

7 (77.8%)

0 (0.0%)

Square Root

14

39 (avg. 2.8)

11 (78.6%)

0 (0.0%)

Sublist

4

4 (avg. 1.0)

3 (75.0%)

0 (0.0%)

Twelve Days

10

51 (avg. 5.1)

8 (80.0%)

0 (0.0%)

Affine Cipher

6

55 (avg. 9.2)

3 (50.0%)

0 (0.0%)

Atbash Cipher

8

52 (avg. 6.5)

6 (75.0%)

0 (0.0%)

Bottle Song

5

29 (avg. 5.8)

4 (80.0%)

0 (0.0%)

Crypto Square

5

37 (avg. 7.4)

4 (80.0%)

0 (0.0%)

Custom Set

14

91 (avg. 6.5)

9 (64.3%)

1 (7.1%)

Food Chain

4

56 (avg. 14.0)

3 (75.0%)

0 (0.0%)

House

4

4 (avg. 1.0)

3 (75.0%)

0 (0.0%)

Nth Prime

6

20 (avg. 3.3)

6 (100.0%)

0 (0.0%)

Pascal's Triangle

6

20 (avg. 3.3)

5 (83.3%)

0 (0.0%)

Queen Attack

58

984 (avg. 17.0)

52 (89.7%)

0 (0.0%)

Robot Name

9

29 (avg. 3.2)

5 (55.6%)

0 (0.0%)

Robot Simulator

12

34 (avg. 2.8)

10 (83.3%)

0 (0.0%)

Run-Length Encoding

56

571 (avg. 10.2)

51 (91.1%)

0 (0.0%)

Simple Cipher

5

32 (avg. 6.4)

4 (80.0%)

0 (0.0%)

Spiral Matrix

5

70 (avg. 14.0)

4 (80.0%)

0 (0.0%)

All Your Base

53

508 (avg. 9.6)

49 (92.5%)

0 (0.0%)

Binary Search Tree

7

18 (avg. 2.6)

4 (57.1%)

0 (0.0%)

Circular Buffer

12

47 (avg. 3.9)

8 (66.7%)

0 (0.0%)

Complex Numbers

6

34 (avg. 5.7)

5 (83.3%)

0 (0.0%)

Conway's Game of Life

4

5 (avg. 1.3)

3 (75.0%)

0 (0.0%)

Grade School

5

17 (avg. 3.4)

3 (60.0%)

0 (0.0%)

Killer Sudoku Helper

6

20 (avg. 3.3)

5 (83.3%)

0 (0.0%)

Kindergarten Garden

5

12 (avg. 2.4)

4 (80.0%)

0 (0.0%)

Knapsack

6

15 (avg. 2.5)

5 (83.3%)

0 (0.0%)

Linked List

8

62 (avg. 7.8)

5 (62.5%)

0 (0.0%)

Rational Numbers

7

44 (avg. 6.3)

5 (71.4%)

0 (0.0%)

Simple Linked List

10

25 (avg. 2.5)

6 (60.0%)

0 (0.0%)

State of Tic-Tac-Toe

4

6 (avg. 1.5)

3 (75.0%)

0 (0.0%)

Two Bucket

7

43 (avg. 6.1)

4 (57.1%)

0 (0.0%)

Wordy

6

43 (avg. 7.2)

3 (50.0%)

0 (0.0%)

Grep

5

44 (avg. 8.8)

4 (80.0%)

0 (0.0%)

Minesweeper

10

45 (avg. 4.5)

7 (70.0%)

0 (0.0%)

Palindrome Products

4

30 (avg. 7.5)

3 (75.0%)

0 (0.0%)

Rail Fence Cipher

6

38 (avg. 6.3)

5 (83.3%)

0 (0.0%)

Rectangles

7

17 (avg. 2.4)

5 (71.4%)

0 (0.0%)

Change

8

16 (avg. 2.0)

5 (62.5%)

0 (0.0%)

Forth

15

53 (avg. 3.5)

5 (33.3%)

1 (6.7%)

List Ops

12

195 (avg. 16.3)

9 (75.0%)

0 (0.0%)

Parallel Letter Frequency

6

40 (avg. 6.7)

3 (50.0%)

0 (0.0%)

Zebra Puzzle

6

29 (avg. 4.8)

4 (66.7%)

0 (0.0%)

3 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Accumulate

27

74 (avg. 2.7)

24 (88.9%)

0 (0.0%)

Beer Song

10

44 (avg. 4.4)

7 (70.0%)

0 (0.0%)

Binary

21

106 (avg. 5.0)

21 (100.0%)

1 (4.8%)

35 unimplemented practice exercises

Alphametics

Baffling Birthdays

Book Store

Bowling

Connect

Dominoes

DOT DSL

Error Handling

Go Counting

Hangman

Intergalactic Transmission

Ledger

Lens Person

Markdown

Matrix

Micro Blog

OCR Numbers

PaaS I/O

Poker

POV

React

Relative Distance

REST API

Saddle Points

Satellite

Say

Series

SGF Parsing

Split-Second Stopwatch

Tournament

Transpose

Tree Building

Variable Length Quantity

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Word Search

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Zipper

View data

3 foregone practice exercises

Gigasecond

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Meetup

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Swift Scheduling

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Programming Tags

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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: 6be2b2b9ff824de41cf7144e4a61eee2fb0270b7 (Takes up to 10 mins to deploy)

Total Test Runner Runs

12,360

Test Run Pass Rate

28.4% (3505)

Test Run Fail Rate

50.7% (6263)

Test Run Error Rate

21.0% (2592)

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: 73cb7b62d314b69d2f85e436aa1c31e30c93fe8d (Takes up to 10 mins to deploy)

Total Representer Runs

2,639

Total Representation Comments Made

0

Feedback Given Frequency

0.0%

Analyzer

Learn More

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

Next goal: Build an Analyzer. Find out more.

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