Rust Track Management

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

Students
118,842
Submissions
2,849,252
Mentoring Discussions
27,987

The Rust track is healthy ✅

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: 5deb659b82533b975c361b4045b5540d01ae9952 (Updates should be instant)

Next goal: Implement 141 practice exercises. Find out more.
98 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
101,242
180,501 (avg. 1.8)
86,457 (85.4%)
28 (0.0%)
Reverse String Reverse String
49,238
171,932 (avg. 3.5)
32,525 (66.1%)
4,821 (9.8%)
Gigasecond Gigasecond
33,665
98,722 (avg. 2.9)
25,959 (77.1%)
4,107 (12.2%)
Clock Clock
20,895
185,163 (avg. 8.9)
14,488 (69.3%)
3,018 (14.4%)
Anagram Anagram
13,311
92,743 (avg. 7.0)
9,758 (73.3%)
2,075 (15.6%)
Space Age Space Age
9,380
36,452 (avg. 3.9)
7,554 (80.5%)
1,233 (13.1%)
Sublist Sublist
15,375
89,139 (avg. 5.8)
10,017 (65.2%)
1,294 (8.4%)
Minesweeper Minesweeper
7,572
54,169 (avg. 7.2)
5,090 (67.2%)
798 (10.5%)
Luhn Luhn
7,090
47,727 (avg. 6.7)
5,876 (82.9%)
653 (9.2%)
Armstrong Numbers Armstrong Numbers
12,989
65,123 (avg. 5.0)
10,720 (82.5%)
350 (2.7%)
Bottle Song Bottle Song
685
5,107 (avg. 7.5)
469 (68.5%)
9 (1.3%)
Difference of Squares Difference of Squares
12,671
28,214 (avg. 2.2)
11,457 (90.4%)
250 (2.0%)
Grains Grains
11,140
38,667 (avg. 3.5)
9,845 (88.4%)
147 (1.3%)
Leap Leap
21,049
32,996 (avg. 1.6)
18,300 (86.9%)
485 (2.3%)
Nth Prime Nth Prime
14,351
42,482 (avg. 3.0)
10,561 (73.6%)
390 (2.7%)
Prime Factors Prime Factors
8,390
25,005 (avg. 3.0)
6,919 (82.5%)
97 (1.2%)
Proverb Proverb
9,586
25,580 (avg. 2.7)
8,164 (85.2%)
147 (1.5%)
Raindrops Raindrops
16,967
30,332 (avg. 1.8)
14,741 (86.9%)
424 (2.5%)
Sum of Multiples Sum of Multiples
9,762
30,396 (avg. 3.1)
8,210 (84.1%)
158 (1.6%)
Bob Bob
10,215
41,264 (avg. 4.0)
8,306 (81.3%)
867 (8.5%)
High Scores High Scores
7,195
41,574 (avg. 5.8)
5,654 (78.6%)
137 (1.9%)
Matching Brackets Matching Brackets
7,706
28,727 (avg. 3.7)
6,273 (81.4%)
276 (3.6%)
Collatz Conjecture Collatz Conjecture
4,648
17,096 (avg. 3.7)
3,931 (84.6%)
71 (1.5%)
Series Series
4,294
14,734 (avg. 3.4)
3,574 (83.2%)
53 (1.2%)
Kindergarten Garden Kindergarten Garden
2,131
12,583 (avg. 5.9)
1,589 (74.6%)
43 (2.0%)
Eliud's Eggs Eliud's Eggs
1,372
3,633 (avg. 2.6)
1,198 (87.3%)
11 (0.8%)
Acronym Acronym
5,009
26,840 (avg. 5.4)
3,799 (75.8%)
62 (1.2%)
All Your Base All Your Base
3,382
14,443 (avg. 4.3)
2,605 (77.0%)
46 (1.4%)
Allergies Allergies
5,316
30,106 (avg. 5.7)
4,085 (76.8%)
124 (2.3%)
Alphametics Alphametics
2,831
14,713 (avg. 5.2)
1,172 (41.4%)
58 (2.0%)
Binary Search Binary Search
4,052
15,881 (avg. 3.9)
3,182 (78.5%)
46 (1.1%)
Bowling Bowling
3,151
20,115 (avg. 6.4)
1,733 (55.0%)
45 (1.4%)
DOT DSL DOT DSL
3,953
15,330 (avg. 3.9)
2,352 (59.5%)
64 (1.6%)
ETL ETL
3,592
7,162 (avg. 2.0)
2,976 (82.9%)
31 (0.9%)
Grade School Grade School
3,206
11,661 (avg. 3.6)
2,640 (82.3%)
34 (1.1%)
Hamming Hamming
3,721
6,748 (avg. 1.8)
3,260 (87.6%)
60 (1.6%)
ISBN Verifier ISBN Verifier
2,895
11,404 (avg. 3.9)
2,309 (79.8%)
29 (1.0%)
Isogram Isogram
3,359
8,501 (avg. 2.5)
2,824 (84.1%)
31 (0.9%)
Nucleotide Count Nucleotide Count
3,939
11,316 (avg. 2.9)
3,328 (84.5%)
46 (1.2%)
PaaS I/O PaaS I/O
3,245
5,173 (avg. 1.6)
1,959 (60.4%)
18 (0.6%)
Palindrome Products Palindrome Products
1,881
8,284 (avg. 4.4)
1,261 (67.0%)
24 (1.3%)
Pangram Pangram
3,052
7,072 (avg. 2.3)
2,633 (86.3%)
44 (1.4%)
Pascal's Triangle Pascal's Triangle
3,538
8,358 (avg. 2.4)
2,891 (81.7%)
35 (1.0%)
Perfect Numbers Perfect Numbers
2,208
5,344 (avg. 2.4)
1,831 (82.9%)
38 (1.7%)
Pig Latin Pig Latin
1,478
4,879 (avg. 3.3)
937 (63.4%)
14 (0.9%)
Queen Attack Queen Attack
2,720
6,083 (avg. 2.2)
2,269 (83.4%)
16 (0.6%)
RNA Transcription RNA Transcription
3,411
8,926 (avg. 2.6)
2,820 (82.7%)
39 (1.1%)
Run-Length Encoding Run-Length Encoding
2,745
9,334 (avg. 3.4)
2,123 (77.3%)
34 (1.2%)
Saddle Points Saddle Points
3,262
6,769 (avg. 2.1)
2,240 (68.7%)
309 (9.5%)
Say Say
2,145
6,080 (avg. 2.8)
1,415 (66.0%)
15 (0.7%)
Scrabble Score Scrabble Score
2,676
5,377 (avg. 2.0)
2,263 (84.6%)
27 (1.0%)
Sieve Sieve
2,823
6,777 (avg. 2.4)
2,324 (82.3%)
32 (1.1%)
Simple Linked List Simple Linked List
4,495
27,152 (avg. 6.0)
2,839 (63.2%)
129 (2.9%)
Spiral Matrix Spiral Matrix
1,536
4,365 (avg. 2.8)
1,034 (67.3%)
12 (0.8%)
Tournament Tournament
2,878
18,866 (avg. 6.6)
2,067 (71.8%)
66 (2.3%)
Triangle Triangle
2,617
6,534 (avg. 2.5)
2,143 (81.9%)
28 (1.1%)
Two Bucket Two Bucket
1,419
2,847 (avg. 2.0)
744 (52.4%)
14 (1.0%)
Variable Length Quantity Variable Length Quantity
1,407
4,421 (avg. 3.1)
906 (64.4%)
6 (0.4%)
Robot Simulator Robot Simulator
3,343
13,370 (avg. 4.0)
2,715 (81.2%)
47 (1.4%)
Robot Name Robot Name
1,728
7,581 (avg. 4.4)
1,169 (67.7%)
40 (2.3%)
Protein Translation Protein Translation
1,703
7,081 (avg. 4.2)
1,190 (69.9%)
18 (1.1%)
Wordy Wordy
1,246
4,219 (avg. 3.4)
834 (66.9%)
8 (0.6%)
Custom Set Custom Set
1,562
6,003 (avg. 3.8)
1,028 (65.8%)
16 (1.0%)
Accumulate Accumulate
1,555
5,465 (avg. 3.5)
1,154 (74.2%)
33 (2.1%)
Affine Cipher Affine Cipher
1,009
4,674 (avg. 4.6)
655 (64.9%)
6 (0.6%)
Atbash Cipher Atbash Cipher
2,415
6,645 (avg. 2.8)
1,830 (75.8%)
801 (33.2%)
Crypto Square Crypto Square
1,245
3,550 (avg. 2.9)
820 (65.9%)
6 (0.5%)
Diamond Diamond
1,072
3,198 (avg. 3.0)
728 (67.9%)
1 (0.1%)
Largest Series Product Largest Series Product
1,511
4,170 (avg. 2.8)
1,169 (77.4%)
19 (1.3%)
Luhn From Luhn From
1,494
3,288 (avg. 2.2)
1,076 (72.0%)
10 (0.7%)
Luhn Trait Luhn Trait
1,314
1,801 (avg. 1.4)
956 (72.8%)
5 (0.4%)
List Ops List Ops
119
628 (avg. 5.3)
80 (67.2%)
2 (1.7%)
Phone Number Phone Number
1,374
4,209 (avg. 3.1)
1,020 (74.2%)
20 (1.5%)
Rail Fence Cipher Rail Fence Cipher
996
3,293 (avg. 3.3)
597 (59.9%)
5 (0.5%)
Roman Numerals Roman Numerals
1,616
4,440 (avg. 2.7)
1,181 (73.1%)
13 (0.8%)
Rotational Cipher Rotational Cipher
1,354
2,759 (avg. 2.0)
1,024 (75.6%)
14 (1.0%)
Simple Cipher Simple Cipher
1,127
3,926 (avg. 3.5)
708 (62.8%)
8 (0.7%)
Word Count Word Count
2,181
7,512 (avg. 3.4)
1,729 (79.3%)
46 (2.1%)
Secret Handshake Secret Handshake
743
2,182 (avg. 2.9)
561 (75.5%)
15 (2.0%)
Knapsack Knapsack
579
2,441 (avg. 4.2)
363 (62.7%)
4 (0.7%)
Yacht Yacht
702
5,462 (avg. 7.8)
501 (71.4%)
10 (1.4%)
Matrix Matrix
343
1,183 (avg. 3.4)
246 (71.7%)
1 (0.3%)
Fizzy Fizzy
1,345
7,928 (avg. 5.9)
677 (50.3%)
18 (1.3%)
Pythagorean Triplet Pythagorean Triplet
4,094
7,633 (avg. 1.9)
2,244 (54.8%)
1,319 (32.2%)
Parallel Letter Frequency Parallel Letter Frequency
4,361
24,104 (avg. 5.5)
2,705 (62.0%)
541 (12.4%)
Macros Macros
3,278
16,684 (avg. 5.1)
2,432 (74.2%)
323 (9.9%)
Poker Poker
4,395
27,659 (avg. 6.3)
1,452 (33.0%)
273 (6.2%)
Forth Forth
2,199
16,574 (avg. 7.5)
1,060 (48.2%)
180 (8.2%)
OCR Numbers OCR Numbers
1,231
4,045 (avg. 3.3)
720 (58.5%)
14 (1.1%)
React React
1,868
6,652 (avg. 3.6)
638 (34.2%)
31 (1.7%)
Circular Buffer Circular Buffer
1,913
7,704 (avg. 4.0)
1,193 (62.4%)
50 (2.6%)
Rectangles Rectangles
1,279
4,852 (avg. 3.8)
663 (51.8%)
15 (1.2%)
Xorcism Xorcism
1,112
5,517 (avg. 5.0)
434 (39.0%)
29 (2.6%)
Book Store Book Store
897
2,423 (avg. 2.7)
402 (44.8%)
7 (0.8%)
Decimal Decimal
1,085
4,833 (avg. 4.5)
449 (41.4%)
7 (0.6%)
Grep Grep
1,079
4,467 (avg. 4.1)
526 (48.7%)
9 (0.8%)
Dominoes Dominoes
1,045
3,786 (avg. 3.6)
511 (48.9%)
20 (1.9%)
Doubly Linked List Doubly Linked List
1,195
4,573 (avg. 3.8)
348 (29.1%)
25 (2.1%)
6 deprecated practice exercises
Started
Attempts
Completions
Mentoring requests
Beer Song Beer Song
14,211
78,978 (avg. 5.6)
11,150 (78.5%)
255 (1.8%)
Diffie-Hellman Diffie-Hellman
4,014
16,875 (avg. 4.2)
2,766 (68.9%)
57 (1.4%)
Hexadecimal Hexadecimal
120
184 (avg. 1.5)
114 (95.0%)
10 (8.3%)
Nucleotide Codons Nucleotide Codons
133
157 (avg. 1.2)
129 (97.0%)
1 (0.8%)
Scale Generator Scale Generator
1,132
4,444 (avg. 3.9)
499 (44.1%)
9 (0.8%)
Two Fer Two Fer
23
28 (avg. 1.2)
4 (17.4%)
1 (4.3%)
43 unimplemented practice exercises
Baffling Birthdays Baffling Birthdays
Bank Account Bank Account
Binary Search Tree Binary Search Tree
Change Change
Complex Numbers Complex Numbers
Connect Connect
Conway's Game of Life Conway's Game of Life
D&D Character D&D Character
Darts Darts
Error Handling Error Handling
Flatten Array Flatten Array
Food Chain Food Chain
Go Counting Go Counting
Hangman Hangman
House House
Intergalactic Transmission Intergalactic Transmission
Killer Sudoku Helper Killer Sudoku Helper
Ledger Ledger
Lens Person Lens Person
Linked List Linked List
Markdown Markdown
Meetup Meetup
Micro Blog Micro Blog
POV POV
Rational Numbers Rational Numbers
Relative Distance Relative Distance
Resistor Color Resistor Color
Resistor Color Duo Resistor Color Duo
Resistor Color Trio Resistor Color Trio
REST API REST API
Satellite Satellite
SGF Parsing SGF Parsing
Split-Second Stopwatch Split-Second Stopwatch
Square Root Square Root
State of Tic-Tac-Toe State of Tic-Tac-Toe
Strain Strain
Swift Scheduling Swift Scheduling
Transpose Transpose
Tree Building Tree Building
Twelve Days Twelve Days
Word Search Word Search
Zebra Puzzle Zebra Puzzle
Zipper Zipper
3 foregone practice exercises
Binary Binary
Octal Octal
Trinary Trinary

Programming Tags

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Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

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: 816935839944013cc47b0b42e54ae5d09968b219 (Takes up to 10 mins to deploy)

Total Test Runner Runs
2,720,069
Test Run Pass Rate
24.9% (676336)
Test Run Fail Rate
22.8% (618917)
Test Run Error Rate
52.4% (1424816)

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.

Current version: 82ccdeb7eb379e9f5794dd42a85fb32551d8ce95 (Takes up to 10 mins to deploy)

Total Representer Runs
962,296
Total Representation Comments Made
63,253
Feedback Given Frequency
6.6%

Analyzer

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

Current version: be623c1493fa08f6f980e93bd33a98ee9cad778f (Takes up to 10 mins to deploy)

Total Analyzer Runs
673,575
Total Analysis Comments Made
173,161
Feedback Given Frequency
2.9%