Prolog

3,476 students

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Exercises

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30 contributors

68 mentors

3,476
students have developed their Prolog skills on Exercism.

Students

3,476

Submissions

28,702

Mentoring Discussions

388

The Prolog track needs attention ⚠️

Building

Build

Use your knowledge to build the Prolog track itself

30 contributors

Build Test Runners

Learn More

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

Usage statistics

Total Test Runner Runs

27,013

Test Run Pass Rate

26.1% (7062)

Test Run Fail Rate

71.6% (19335)

Test Run Error Rate

2.3% (616)

Build Analyzers

Learn More

Build an Analyzer for Prolog: 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 at least 50 practice exercises. Find out more.

Usage statistics

40 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

2,436

4,520 (avg. 1.9)

1,863 (76.5%)

0 (0.0%)

Queen Attack

1,189

4,676 (avg. 3.9)

484 (40.7%)

105 (8.8%)

Triangle

660

5,252 (avg. 8.0)

405 (61.4%)

68 (10.3%)

Isogram

461

2,320 (avg. 5.0)

313 (67.9%)

35 (7.6%)

Binary

318

1,398 (avg. 4.4)

222 (69.8%)

29 (9.1%)

RNA Transcription

275

1,009 (avg. 3.7)

207 (75.3%)

17 (6.2%)

Anagram

214

739 (avg. 3.5)

132 (61.7%)

20 (9.3%)

Pascal's Triangle

165

348 (avg. 2.1)

105 (63.6%)

16 (9.7%)

Dominoes

143

374 (avg. 2.6)

75 (52.4%)

12 (8.4%)

Complex Numbers

200

467 (avg. 2.3)

117 (58.5%)

38 (19.0%)

Grains

158

665 (avg. 4.2)

113 (71.5%)

4 (2.5%)

Hamming

135

448 (avg. 3.3)

102 (75.6%)

2 (1.5%)

Leap

262

1,024 (avg. 3.9)

200 (76.3%)

5 (1.9%)

Nucleotide Count

122

256 (avg. 2.1)

83 (68.0%)

5 (4.1%)

Satellite

251 (avg. 2.6)

55 (57.9%)

2 (2.1%)

Space Age

201

701 (avg. 3.5)

162 (80.6%)

4 (2.0%)

Spiral Matrix

132 (avg. 1.5)

35 (38.9%)

5 (5.6%)

Sum of Multiples

188

316 (avg. 1.7)

92 (48.9%)

13 (6.9%)

Wordy

588 (avg. 7.3)

28 (34.6%)

1 (1.2%)

Zebra Puzzle

265 (avg. 11.0)

13 (54.2%)

1 (4.2%)

Collatz Conjecture

218 (avg. 6.4)

23 (67.6%)

1 (2.9%)

Kindergarten Garden

14 (avg. 1.6)

5 (55.6%)

0 (0.0%)

Change

158 (avg. 13.2)

6 (50.0%)

0 (0.0%)

Armstrong Numbers

38 (avg. 1.8)

12 (57.1%)

0 (0.0%)

Pangram

67 (avg. 3.7)

12 (66.7%)

0 (0.0%)

Killer-Sudoku-Helper

54 (avg. 4.9)

6 (54.5%)

0 (0.0%)

Knapsack

139 (avg. 11.6)

6 (50.0%)

0 (0.0%)

Flatten-Array

96 (avg. 5.6)

11 (64.7%)

0 (0.0%)

Reverse-String

173 (avg. 5.4)

25 (78.1%)

1 (3.1%)

Raindrops

105

513 (avg. 4.9)

90 (85.7%)

5 (4.8%)

Two-Fer

204 (avg. 5.8)

26 (74.3%)

1 (2.9%)

Difference-Of-Squares

73 (avg. 4.1)

12 (66.7%)

0 (0.0%)

Bob

45 (avg. 3.8)

9 (75.0%)

0 (0.0%)

Run-Length-Encoding

45 (avg. 3.2)

7 (50.0%)

0 (0.0%)

Roman-Numerals

295 (avg. 3.4)

66 (75.0%)

4 (4.5%)

Acronym

136

622 (avg. 4.6)

88 (64.7%)

4 (2.9%)

ETL

16 (avg. 2.3)

5 (71.4%)

0 (0.0%)

Floored

79 (avg. 4.0)

10 (50.0%)

0 (0.0%)

Garden Party

45 (avg. 2.4)

10 (52.6%)

0 (0.0%)

Cheryl's Birthday

59 (avg. 2.0)

10 (34.5%)

1 (3.4%)

92 unimplemented practice exercises

Affine Cipher

All Your Base

Allergies

Alphametics

Atbash Cipher

Bank Account

Binary Search

Binary Search Tree

Book Store

Bottle Song

Bowling

Circular Buffer

Clock

Connect

Crypto Square

Custom Set

D&D Character

DOT DSL

Darts

Diamond

Error Handling

Food Chain

Forth

Gigasecond

Go Counting

Grade School

Grep

Hangman

High Scores

House

ISBN Verifier

Largest Series Product

Ledger

Lens Person

Linked List

List Ops

Luhn

Markdown

Matching Brackets

Matrix

Meetup

Micro Blog

Minesweeper

Nth Prime

OCR Numbers

POV

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Perfect Numbers

Phone Number

Pig Latin

Poker

Prime Factors

Protein Translation

Proverb

Pythagorean Triplet

REST API

Rail Fence Cipher

Rational Numbers

React

Rectangles

Resistor Color

Resistor Color Duo

Resistor Color Trio

Robot Name

Robot Simulator

Rotational Cipher

SGF Parsing

Saddle Points

Say

Scale Generator

Scrabble Score

Secret Handshake

Series

Sieve

Simple Cipher

Simple Linked List

Square Root

State of Tic-Tac-Toe

Strain

Sublist

Tournament

Transpose

Tree Building

Twelve Days

Two Bucket

Variable Length Quantity

Word Count

Word Search

Yacht

Zipper

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3,476 students have developed their Prolog skills on Exercism.

The Prolog track needs attention ⚠️

Build

Build Test Runners

Usage statistics

Build Analyzers

Build Representers

Create Practice Exercises

Usage statistics

We 💙 our volunteers

3,476
students have developed their Prolog skills on Exercism.