Pharo Track Management

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

Students
1,566
Submissions
19,820
Mentoring Discussions
555

The Pharo track needs attention ⚠️

Building

Practice Exercises

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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: b3d7ecbdd0b4ebae86919bfd6630929822fd1790 (Updates should be instant)

Next goal: Implement 141 practice exercises. Find out more.
50 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
1,275
1,492 (avg. 1.2)
915 (71.8%)
0 (0.0%)
Die Die
167
383 (avg. 2.3)
64 (38.3%)
6 (3.6%)
Gigasecond Gigasecond
39
68 (avg. 1.7)
18 (46.2%)
1 (2.6%)
Leap Leap
383
1,309 (avg. 3.4)
294 (76.8%)
72 (18.8%)
Resistor Color Duo Resistor Color Duo
102
220 (avg. 2.2)
85 (83.3%)
9 (8.8%)
Reverse String Reverse String
311
824 (avg. 2.6)
224 (72.0%)
57 (18.3%)
Space Age Space Age
137
257 (avg. 1.9)
109 (79.6%)
14 (10.2%)
Two-Fer Two-Fer
551
1,704 (avg. 3.1)
342 (62.1%)
93 (16.9%)
Acronym Acronym
107
386 (avg. 3.6)
81 (75.7%)
6 (5.6%)
Armstrong Numbers Armstrong Numbers
105
237 (avg. 2.3)
84 (80.0%)
9 (8.6%)
Clock Clock
93
330 (avg. 3.5)
65 (69.9%)
11 (11.8%)
Collatz Conjecture Collatz Conjecture
69
177 (avg. 2.6)
54 (78.3%)
3 (4.3%)
Darts Darts
76
202 (avg. 2.7)
62 (81.6%)
3 (3.9%)
ETL ETL
64
89 (avg. 1.4)
51 (79.7%)
4 (6.3%)
Flatten Array Flatten Array
63
83 (avg. 1.3)
48 (76.2%)
5 (7.9%)
Grains Grains
191
477 (avg. 2.5)
159 (83.2%)
40 (20.9%)
Hamming Hamming
71
196 (avg. 2.8)
58 (81.7%)
6 (8.5%)
High Scores High Scores
63
92 (avg. 1.5)
50 (79.4%)
2 (3.2%)
Isogram Isogram
218
551 (avg. 2.5)
187 (85.8%)
40 (18.3%)
Pangram Pangram
62
81 (avg. 1.3)
52 (83.9%)
3 (4.8%)
Raindrops Raindrops
102
216 (avg. 2.1)
85 (83.3%)
5 (4.9%)
Secret Handshake Secret Handshake
54
73 (avg. 1.4)
43 (79.6%)
2 (3.7%)
Twelve Days Twelve Days
78
170 (avg. 2.2)
54 (69.2%)
6 (7.7%)
Allergies Allergies
155
538 (avg. 3.5)
115 (74.2%)
34 (21.9%)
Anagram Anagram
72
87 (avg. 1.2)
56 (77.8%)
3 (4.2%)
Atbash Cipher Atbash Cipher
59
95 (avg. 1.6)
46 (78.0%)
3 (5.1%)
Binary Binary
65
101 (avg. 1.6)
51 (78.5%)
4 (6.2%)
Diamond Diamond
54
78 (avg. 1.4)
40 (74.1%)
4 (7.4%)
ISBN Verifier ISBN Verifier
69
159 (avg. 2.3)
47 (68.1%)
6 (8.7%)
Proverb Proverb
48
57 (avg. 1.2)
38 (79.2%)
3 (6.3%)
Roman Numerals Roman Numerals
280
5,190 (avg. 18.5)
221 (78.9%)
9 (3.2%)
Sieve Sieve
50
71 (avg. 1.4)
42 (84.0%)
4 (8.0%)
Sum of Multiples Sum of Multiples
70
129 (avg. 1.8)
60 (85.7%)
4 (5.7%)
Word Count Word Count
50
71 (avg. 1.4)
43 (86.0%)
4 (8.0%)
All Your Base All Your Base
10
24 (avg. 2.4)
8 (80.0%)
0 (0.0%)
Grade School Grade School
110
183 (avg. 1.7)
80 (72.7%)
24 (21.8%)
Luhn Luhn
50
76 (avg. 1.5)
42 (84.0%)
2 (4.0%)
Matching Brackets Matching Brackets
66
128 (avg. 1.9)
50 (75.8%)
7 (10.6%)
Matrix Matrix
114
319 (avg. 2.8)
89 (78.1%)
21 (18.4%)
Robot Simulator Robot Simulator
48
100 (avg. 2.1)
37 (77.1%)
2 (4.2%)
Simple Cipher Simple Cipher
34
211 (avg. 6.2)
25 (73.5%)
0 (0.0%)
Bowling Bowling
45
89 (avg. 2.0)
28 (62.2%)
3 (6.7%)
Circular Buffer Circular Buffer
32
201 (avg. 6.3)
24 (75.0%)
0 (0.0%)
Minesweeper Minesweeper
108
1,858 (avg. 17.2)
83 (76.9%)
5 (4.6%)
Tournament Tournament
41
75 (avg. 1.8)
32 (78.0%)
2 (4.9%)
Binary Search Tree Binary Search Tree
32
160 (avg. 5.0)
21 (65.6%)
0 (0.0%)
Forth Forth
86
139 (avg. 1.6)
47 (54.7%)
16 (18.6%)
OCR Numbers OCR Numbers
9
13 (avg. 1.4)
4 (44.4%)
0 (0.0%)
Word Search Word Search
10
31 (avg. 3.1)
5 (50.0%)
0 (0.0%)
Rectangles Rectangles
10
20 (avg. 2.0)
5 (50.0%)
0 (0.0%)
91 unimplemented practice exercises
Affine Cipher Affine Cipher
Alphametics Alphametics
Baffling Birthdays Baffling Birthdays
Bank Account Bank Account
Binary Search Binary Search
Bob Bob
Book Store Book Store
Bottle Song Bottle Song
Camicia Camicia
Change Change
Complex Numbers Complex Numbers
Connect Connect
Conway's Game of Life Conway's Game of Life
Crypto Square Crypto Square
Custom Set Custom Set
D&D Character D&D Character
Difference of Squares Difference of Squares
Dominoes Dominoes
DOT DSL DOT DSL
Eliud's Eggs Eliud's Eggs
Error Handling Error Handling
Flower Field Flower Field
Food Chain Food Chain
Go Counting Go Counting
Grep Grep
House House
Intergalactic Transmission Intergalactic Transmission
Killer Sudoku Helper Killer Sudoku Helper
Kindergarten Garden Kindergarten Garden
Knapsack Knapsack
Largest Series Product Largest Series Product
Ledger Ledger
Lens Person Lens Person
Line Up Line Up
Linked List Linked List
List Ops List Ops
Markdown Markdown
Meetup Meetup
Micro Blog Micro Blog
Nth Prime Nth Prime
Nucleotide Count Nucleotide Count
PaaS I/O PaaS I/O
Palindrome Products Palindrome Products
Parallel Letter Frequency Parallel Letter Frequency
Pascal's Triangle Pascal's Triangle
Perfect Numbers Perfect Numbers
Phone Number Phone Number
Piecing It Together Piecing It Together
Pig Latin Pig Latin
Poker Poker
POV POV
Prime Factors Prime Factors
Prism Prism
Protein Translation Protein Translation
Pythagorean Triplet Pythagorean Triplet
Queen Attack Queen Attack
Rail Fence Cipher Rail Fence Cipher
Rational Numbers Rational Numbers
React React
Relative Distance Relative Distance
Resistor Color Resistor Color
Resistor Color Trio Resistor Color Trio
REST API REST API
RNA Transcription RNA Transcription
Robot Name Robot Name
Rotational Cipher Rotational Cipher
Run-Length Encoding Run-Length Encoding
Saddle Points Saddle Points
Satellite Satellite
Save the Cow Save the Cow
Say Say
Scrabble Score Scrabble Score
Series Series
SGF Parsing SGF Parsing
Simple Linked List Simple Linked List
Spiral Matrix Spiral Matrix
Split-Second Stopwatch Split-Second Stopwatch
Square Root Square Root
State of Tic-Tac-Toe State of Tic-Tac-Toe
Strain Strain
Sublist Sublist
Swift Scheduling Swift Scheduling
Transpose Transpose
Tree Building Tree Building
Triangle Triangle
Two Bucket Two Bucket
Variable Length Quantity Variable Length Quantity
Wordy Wordy
Yacht Yacht
Zebra Puzzle Zebra Puzzle
Zipper Zipper

Test Runner

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Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: c8691282af98fe418ac544a7b5c4b35c770060a6 (Takes up to 10 mins to deploy)

Total Test Runner Runs
18,277
Test Run Pass Rate
30.6% (5601)
Test Run Fail Rate
35.3% (6450)
Test Run Error Rate
34.1% (6226)

Representer

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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

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

Next goal: Build an Analyzer. Find out more.