LFE impact and status on Exercism

LFE

299 students

About LFE

Practice

37 contributors

30 mentors

LFE Track Management

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

Students

299

Submissions

2,210

Mentoring Discussions

The LFE track needs attention ⚠️

Building

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: 2500973a47429d76b3d354d8454af8bf52f8ce88 (Updates should be instant)

Next goal: Implement 132 practice exercises. Find out more.

50 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

172

186 (avg. 1.1)

136 (79.1%)

0 (0.0%)

Acronym

43 (avg. 5.4)

1 (12.5%)

0 (0.0%)

Anagram

100 (avg. 3.6)

14 (50.0%)

0 (0.0%)

Atbash Cipher

48 (avg. 3.7)

7 (53.8%)

0 (0.0%)

Binary

94 (avg. 7.2)

7 (53.8%)

0 (0.0%)

Bob

100 (avg. 4.8)

15 (71.4%)

3 (14.3%)

Collatz Conjecture

21 (avg. 7.0)

1 (33.3%)

0 (0.0%)

Darts

3 (avg. 1.0)

1 (33.3%)

0 (0.0%)

Difference of Squares

18 (avg. 2.0)

7 (77.8%)

0 (0.0%)

Gigasecond

43 (avg. 5.4)

1 (12.5%)

0 (0.0%)

Grains

22 (avg. 1.7)

10 (76.9%)

1 (7.7%)

Hamming

39 (avg. 2.6)

11 (73.3%)

1 (6.7%)

Leap

153 (avg. 2.2)

53 (76.8%)

9 (13.0%)

Nucleotide Count

25 (avg. 2.8)

6 (66.7%)

0 (0.0%)

Phone Number

20 (avg. 2.5)

3 (37.5%)

0 (0.0%)

Resistor Color

17 (avg. 5.7)

1 (33.3%)

0 (0.0%)

Queen Attack

7 (avg. 2.3)

1 (33.3%)

0 (0.0%)

RNA Transcription

42 (avg. 1.4)

25 (86.2%)

6 (20.7%)

Space Age

40 (avg. 3.6)

8 (72.7%)

0 (0.0%)

Strain

15 (avg. 1.2)

10 (76.9%)

0 (0.0%)

Sum of Multiples

23 (avg. 1.4)

11 (68.8%)

2 (12.5%)

Trinary

12 (avg. 1.7)

2 (28.6%)

0 (0.0%)

Two-Fer

23 (avg. 7.7)

1 (33.3%)

0 (0.0%)

Raindrops

13 (avg. 1.6)

3 (37.5%)

0 (0.0%)

Eliud's Eggs

5 (avg. 1.7)

1 (33.3%)

0 (0.0%)

Reverse String

27 (avg. 6.8)

1 (25.0%)

0 (0.0%)

Scrabble Score

27 (avg. 9.0)

1 (33.3%)

0 (0.0%)

Protein Translation

48 (avg. 12.0)

1 (25.0%)

0 (0.0%)

D&D Character

6 (avg. 2.0)

1 (33.3%)

0 (0.0%)

Pangram

11 (avg. 3.7)

1 (33.3%)

0 (0.0%)

List Ops

16 (avg. 5.3)

1 (33.3%)

0 (0.0%)

Triangle

6 (avg. 2.0)

1 (33.3%)

0 (0.0%)

Binary Search

15 (avg. 5.0)

1 (33.3%)

0 (0.0%)

Square Root

7 (avg. 2.3)

1 (33.3%)

0 (0.0%)

Allergies

155 (avg. 3.9)

5 (12.5%)

0 (0.0%)

Bank Account

66 (avg. 7.3)

1 (11.1%)

Clock

135 (avg. 16.9)

2 (25.0%)

0 (0.0%)

ETL

78 (avg. 13.0)

1 (16.7%)

0 (0.0%)

Grade School

12 (avg. 1.5)

3 (37.5%)

0 (0.0%)

Largest Series Product

16 (avg. 2.7)

1 (16.7%)

0 (0.0%)

Luhn

107 (avg. 15.3)

2 (28.6%)

0 (0.0%)

Meetup

49 (avg. 9.8)

1 (20.0%)

0 (0.0%)

Parallel Letter Frequency

60 (avg. 8.6)

2 (28.6%)

0 (0.0%)

Robot Simulator

46 (avg. 6.6)

3 (42.9%)

0 (0.0%)

Series

4 (avg. 0.8)

1 (20.0%)

0 (0.0%)

Word Count

7 (avg. 0.8)

4 (44.4%)

0 (0.0%)

Roman Numerals

5 (avg. 1.3)

1 (25.0%)

0 (0.0%)

Sieve

42 (avg. 10.5)

2 (50.0%)

0 (0.0%)

Beer Song

32 (avg. 4.6)

1 (14.3%)

0 (0.0%)

Circular Buffer

111 (avg. 12.3)

2 (22.2%)

1 (11.1%)

1 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Accumulate

10 (avg. 3.3)

3 (100.0%)

2 (66.7%)

82 unimplemented practice exercises

Affine Cipher

All Your Base

Alphametics

Armstrong Numbers

Binary Search Tree

Book Store

Bottle Song

Bowling

Change

Complex Numbers

Connect

Conway's Game of Life

Crypto Square

Custom Set

Diamond

Dominoes

DOT DSL

Error Handling

Flatten Array

Food Chain

Forth

Go Counting

Grep

Hangman

High Scores

House

ISBN Verifier

Isogram

Killer Sudoku Helper

Kindergarten Garden

Knapsack

Ledger

Lens Person

Linked List

Markdown

Matching Brackets

Matrix

Micro Blog

Minesweeper

Nth Prime

OCR Numbers

PaaS I/O

Palindrome Products

Pascal's Triangle

Perfect Numbers

Pig Latin

Poker

POV

Prime Factors

Proverb

Pythagorean Triplet

Rail Fence Cipher

Rational Numbers

React

Rectangles

Resistor Color Duo

Resistor Color Trio

REST API

Robot Name

Rotational Cipher

Run-Length Encoding

Saddle Points

Satellite

Say

Secret Handshake

SGF Parsing

Simple Cipher

Simple Linked List

Spiral Matrix

State of Tic-Tac-Toe

Sublist

Tournament

Transpose

Tree Building

Twelve Days

Two Bucket

Variable Length Quantity

Word Search

Wordy

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: 9c07ad57d3d21881f747fc8063974e9d47a31ba2 (Takes up to 10 mins to deploy)

Next goal: Get Test Runners to Version 2. LFE is currently utilising a Version 1 Test Runner. Find out more.

Total Test Runner Runs

2,125

Test Run Pass Rate

24.6% (523)

Test Run Fail Rate

74.0% (1572)

Test Run Error Rate

1.4% (30)

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 LFE: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

Volunteers

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763

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728

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702

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