Gleam impact and status on Exercism

Build Test Runners

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. Gleam is currently utilising a Version 1 Test Runner. Find out more.

Usage statistics

Total Test Runner Runs

5,871

Test Run Pass Rate

33.0% (1940)

Test Run Fail Rate

18.0% (1056)

Test Run Error Rate

49.0% (2875)

Build Analyzers

Learn More

Build an Analyzer for Gleam: 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

92 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

289

361 (avg. 1.2)

268 (92.7%)

0 (0.0%)

Resistor Color

194

491 (avg. 2.5)

137 (70.6%)

6 (3.1%)

Difference Of Squares

125

711 (avg. 5.7)

99 (79.2%)

9 (7.2%)

Two Fer

108

507 (avg. 4.7)

94 (87.0%)

3 (2.8%)

Bob

79

667 (avg. 8.4)

63 (79.7%)

3 (3.8%)

Leap

80

264 (avg. 3.3)

72 (90.0%)

4 (5.0%)

Accumulate

52

128 (avg. 2.5)

45 (86.5%)

3 (5.8%)

Pascals Triangle

29

124 (avg. 4.3)

21 (72.4%)

3 (10.3%)

Forth

17

19 (avg. 1.1)

7 (41.2%)

2 (11.8%)

Bowling

13

70 (avg. 5.4)

5 (38.5%)

0 (0.0%)

Anagram

20

92 (avg. 4.6)

19 (95.0%)

2 (10.0%)

Pangram

25

104 (avg. 4.2)

22 (88.0%)

1 (4.0%)

Roman Numerals

16

32 (avg. 2.0)

12 (75.0%)

1 (6.3%)

Protein Translation

27

242 (avg. 9.0)

22 (81.5%)

3 (11.1%)

Dominoes

7

5 (avg. 0.7)

3 (42.9%)

0 (0.0%)

RNA Transcription

24

97 (avg. 4.0)

22 (91.7%)

1 (4.2%)

Diamond

8

27 (avg. 3.4)

6 (75.0%)

1 (12.5%)

Series

11

43 (avg. 3.9)

10 (90.9%)

1 (9.1%)

Darts

15

55 (avg. 3.7)

14 (93.3%)

3 (20.0%)

Resistor Color Duo

4

12 (avg. 3.0)

4 (100.0%)

1 (25.0%)

Word Count

7

83 (avg. 11.9)

7 (100.0%)

0 (0.0%)

Custom Set

3

2 (avg. 0.7)

2 (66.7%)

0 (0.0%)

Circular Buffer

12

87 (avg. 7.3)

9 (75.0%)

1 (8.3%)

Raindrops

18

81 (avg. 4.5)

17 (94.4%)

2 (11.1%)

Strain

4

5 (avg. 1.3)

4 (100.0%)

0 (0.0%)

Phone Number

8

37 (avg. 4.6)

5 (62.5%)

0 (0.0%)

Isogram

16

80 (avg. 5.0)

14 (87.5%)

0 (0.0%)

Binary Search Tree

9

19 (avg. 2.1)

7 (77.8%)

0 (0.0%)

Satellite

6

4 (avg. 0.7)

4 (66.7%)

0 (0.0%)

Tournament

3

3 (avg. 1.0)

2 (66.7%)

0 (0.0%)

Zipper

6

7 (avg. 1.2)

5 (83.3%)

0 (0.0%)

POV

3

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Sum of Multiples

4

5 (avg. 1.3)

4 (100.0%)

0 (0.0%)

Matching Brackets

14

42 (avg. 3.0)

10 (71.4%)

1 (7.1%)

Triangle

7

23 (avg. 3.3)

7 (100.0%)

1 (14.3%)

Pythagorean Triplet

5

12 (avg. 2.4)

3 (60.0%)

0 (0.0%)

Alphametics

5

1 (avg. 0.2)

1 (20.0%)

0 (0.0%)

Robot Simulator

27

106 (avg. 3.9)

22 (81.5%)

3 (11.1%)

Rectangles

2

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Acronym

4

8 (avg. 2.0)

3 (75.0%)

1 (25.0%)

Scrabble Score

7

20 (avg. 2.9)

7 (100.0%)

0 (0.0%)

Armstrong Numbers

11

51 (avg. 4.6)

6 (54.5%)

0 (0.0%)

Collatz Conjecture

23

90 (avg. 3.9)

20 (87.0%)

1 (4.3%)

Reverse String

18

66 (avg. 3.7)

15 (83.3%)

1 (5.6%)

Resistor Color Trio

6

99 (avg. 16.5)

5 (83.3%)

2 (33.3%)

Bottle Song

3

14 (avg. 4.7)

2 (66.7%)

0 (0.0%)

List Ops

8

43 (avg. 5.4)

6 (75.0%)

0 (0.0%)

Perfect Numbers

5

20 (avg. 4.0)

5 (100.0%)

0 (0.0%)

Prime Factors

3

27 (avg. 9.0)

2 (66.7%)

0 (0.0%)

Run-Length Encoding

3

2 (avg. 0.7)

2 (66.7%)

0 (0.0%)

Grains

6

47 (avg. 7.8)

5 (83.3%)

0 (0.0%)

Nucleotide count

7

20 (avg. 2.9)

6 (85.7%)

1 (14.3%)

Hamming

22

261 (avg. 11.9)

19 (86.4%)

2 (9.1%)

Proverb

5

19 (avg. 3.8)

4 (80.0%)

0 (0.0%)

High Scores

8

41 (avg. 5.1)

8 (100.0%)

1 (12.5%)

Allergies

7

30 (avg. 4.3)

6 (85.7%)

1 (14.3%)

Twelve Days

2

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

ETL

6

20 (avg. 3.3)

6 (100.0%)

0 (0.0%)

Queen Attack

3

3 (avg. 1.0)

3 (100.0%)

1 (33.3%)

Sublist

3

4 (avg. 1.3)

2 (66.7%)

0 (0.0%)

Rotational Cipher

4

3 (avg. 0.8)

2 (50.0%)

0 (0.0%)

Change

3

2 (avg. 0.7)

2 (66.7%)

0 (0.0%)

Flatten Array

4

6 (avg. 1.5)

4 (100.0%)

0 (0.0%)

All Your Base

3

10 (avg. 3.3)

3 (100.0%)

0 (0.0%)

Knapsack

3

3 (avg. 1.0)

2 (66.7%)

0 (0.0%)

Yacht

15

122 (avg. 8.1)

13 (86.7%)

1 (6.7%)

D&D Character

4

5 (avg. 1.3)

3 (75.0%)

0 (0.0%)

ISBN Verifier

4

5 (avg. 1.3)

4 (100.0%)

0 (0.0%)

Kindergarten Garden

3

5 (avg. 1.7)

3 (100.0%)

0 (0.0%)

Atbash Cipher

3

3 (avg. 1.0)

2 (66.7%)

0 (0.0%)

Square Root

2

2 (avg. 1.0)

1 (50.0%)

0 (0.0%)

Space Age

7

11 (avg. 1.6)

6 (85.7%)

0 (0.0%)

Simple Cipher

3

1 (avg. 0.3)

1 (33.3%)

0 (0.0%)

Crypto Square

2

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Affine Cipher

2

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

House

2

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Connect

1

0 (avg. 0.0)

0 (0.0%)

Clock

3

13 (avg. 4.3)

3 (100.0%)

0 (0.0%)

Killer Sudoku Helper

2

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Luhn

2

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Wordy

2

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Largest Series Product

3

3 (avg. 1.0)

3 (100.0%)

0 (0.0%)

Minesweeper

1

0 (avg. 0.0)

0 (0.0%)

Say

1

0 (avg. 0.0)

0 (0.0%)

Saddle Points

1

0 (avg. 0.0)

0 (0.0%)

Secret Handshake

2

2 (avg. 1.0)

2 (100.0%)

0 (0.0%)

Matrix

2

1 (avg. 0.5)

1 (50.0%)

0 (0.0%)

Grade School

1

0 (avg. 0.0)

0 (0.0%)

Variable Length Quantity

1

0 (avg. 0.0)

0 (0.0%)

OCR Numbers

1

0 (avg. 0.0)

0 (0.0%)

Pig Latin

1

0 (avg. 0.0)

0 (0.0%)

Nth Prime

1

0 (avg. 0.0)

0 (0.0%)

1 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Freelancer Rates

11

137 (avg. 12.5)

10 (90.9%)

0 (0.0%)

37 unimplemented practice exercises

Bank Account

Binary Search

Book Store

Complex Numbers

DOT DSL

Error Handling

Food Chain

Gigasecond

Go Counting

Grep

Hangman

Ledger

Lens Person

Linked List

Markdown

Meetup

Micro Blog

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Poker

REST API

Rail Fence Cipher

Rational Numbers

React

Robot Name

SGF Parsing

Scale Generator

Sieve

Simple Linked List

Spiral Matrix

State of Tic-Tac-Toe

Transpose

Tree Building

Two Bucket

Word Search

Zebra Puzzle

320
students have developed their Gleam skills on Exercism.

The Gleam 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 Gleam skills on Exercism.

The Gleam 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 Gleam skills on Exercism.