Rust
Rust
AboutExercisesBuild Status

79,507
students have developed their Rust skills on Exercism.

Students
79,507
Submissions
1,787,974
Mentoring Discussions
24,664

The Rust track needs attention ⚠️

Building

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Use your knowledge to build the Rust track itself

Build Test Runners

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

Usage statistics

Total Test Runner Runs
1,614,028
Test Run Pass Rate
25.1% (405300)
Test Run Fail Rate
22.3% (360673)
Test Run Error Rate
52.5% (848055)

Build Analyzers

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

Usage statistics

Total Analyzer Runs
294,478
Total Analysis Comments Made
41,584
Feedback Given Frequency
1.1%

Build Representers

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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.

Usage statistics

Total Representer Runs
294,487
Total Representation Comments Made
0
Feedback Given Frequency
0.0%

Create 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.

Next goal: Implement 137 practice exercises. Find out more.

Usage statistics

97 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
62,312
103,691 (avg. 1.7)
55,661 (89.3%)
28 (0.0%)
Reverse String Reverse String
21,935
58,931 (avg. 2.7)
16,265 (74.2%)
3,981 (18.1%)
Gigasecond Gigasecond
17,652
40,780 (avg. 2.3)
14,696 (83.3%)
3,842 (21.8%)
Clock Clock
11,498
78,041 (avg. 6.8)
8,305 (72.2%)
2,732 (23.8%)
Anagram Anagram
6,556
37,746 (avg. 5.8)
4,975 (75.9%)
1,684 (25.7%)
Space Age Space Age
4,668
15,064 (avg. 3.2)
3,770 (80.8%)
1,085 (23.2%)
Sublist Sublist
11,356
65,244 (avg. 5.7)
6,684 (58.9%)
1,159 (10.2%)
Minesweeper Minesweeper
3,889
22,285 (avg. 5.7)
2,528 (65.0%)
626 (16.1%)
Luhn Luhn
3,798
19,975 (avg. 5.3)
3,153 (83.0%)
553 (14.6%)
Parallel Letter Frequency Parallel Letter Frequency
2,706
12,715 (avg. 4.7)
1,600 (59.1%)
424 (15.7%)
Macros Macros
2,065
8,930 (avg. 4.3)
1,524 (73.8%)
299 (14.5%)
Poker Poker
3,408
19,061 (avg. 5.6)
986 (28.9%)
241 (7.1%)
Forth Forth
1,362
8,723 (avg. 6.4)
648 (47.6%)
140 (10.3%)
Armstrong Numbers Armstrong Numbers
7,437
25,121 (avg. 3.4)
6,198 (83.3%)
153 (2.1%)
Beer Song Beer Song
10,305
38,673 (avg. 3.8)
8,161 (79.2%)
172 (1.7%)
Difference of Squares Difference of Squares
8,872
15,880 (avg. 1.8)
8,032 (90.5%)
199 (2.2%)
Grains Grains
7,593
19,209 (avg. 2.5)
6,726 (88.6%)
111 (1.5%)
Leap Leap
17,441
22,680 (avg. 1.3)
14,999 (86.0%)
453 (2.6%)
Nth Prime Nth Prime
11,366
23,698 (avg. 2.1)
8,156 (71.8%)
326 (2.9%)
Prime Factors Prime Factors
5,887
12,536 (avg. 2.1)
4,829 (82.0%)
64 (1.1%)
Proverb Proverb
7,355
14,998 (avg. 2.0)
6,186 (84.1%)
110 (1.5%)
Raindrops Raindrops
14,279
21,641 (avg. 1.5)
12,267 (85.9%)
384 (2.7%)
Sum of Multiples Sum of Multiples
7,392
16,715 (avg. 2.3)
6,197 (83.8%)
124 (1.7%)
Bob Bob
7,772
22,797 (avg. 2.9)
6,314 (81.2%)
826 (10.6%)
High Scores High Scores
4,592
20,521 (avg. 4.5)
3,581 (78.0%)
89 (1.9%)
Matching Brackets Matching Brackets
5,317
15,351 (avg. 2.9)
4,287 (80.6%)
240 (4.5%)
Acronym Acronym
3,099
11,943 (avg. 3.9)
2,316 (74.7%)
31 (1.0%)
All Your Base All Your Base
1,936
6,694 (avg. 3.5)
1,463 (75.6%)
25 (1.3%)
Allergies Allergies
3,768
21,040 (avg. 5.6)
2,822 (74.9%)
107 (2.8%)
Alphametics Alphametics
1,725
5,960 (avg. 3.5)
694 (40.2%)
40 (2.3%)
Binary Search Binary Search
2,556
8,107 (avg. 3.2)
1,947 (76.2%)
32 (1.3%)
Bowling Bowling
2,174
10,828 (avg. 5.0)
1,210 (55.7%)
27 (1.2%)
DOT DSL DOT DSL
3,126
9,127 (avg. 2.9)
1,827 (58.4%)
47 (1.5%)
ETL ETL
2,659
4,581 (avg. 1.7)
2,208 (83.0%)
27 (1.0%)
Grade School Grade School
2,373
7,404 (avg. 3.1)
1,976 (83.3%)
30 (1.3%)
Hamming Hamming
2,708
4,395 (avg. 1.6)
2,389 (88.2%)
51 (1.9%)
ISBN Verifier ISBN Verifier
1,947
6,052 (avg. 3.1)
1,533 (78.7%)
16 (0.8%)
Isogram Isogram
2,362
4,704 (avg. 2.0)
1,962 (83.1%)
17 (0.7%)
Nucleotide Count Nucleotide Count
3,092
7,496 (avg. 2.4)
2,641 (85.4%)
39 (1.3%)
PaaS I/O PaaS I/O
2,336
2,856 (avg. 1.2)
1,407 (60.2%)
12 (0.5%)
Palindrome Products Palindrome Products
1,236
5,150 (avg. 4.2)
796 (64.4%)
16 (1.3%)
Pangram Pangram
2,178
4,479 (avg. 2.1)
1,903 (87.4%)
39 (1.8%)
Pascal's Triangle Pascal's Triangle
2,831
5,293 (avg. 1.9)
2,337 (82.6%)
28 (1.0%)
Perfect Numbers Perfect Numbers
1,558
3,140 (avg. 2.0)
1,287 (82.6%)
35 (2.2%)
Pig Latin Pig Latin
892
2,070 (avg. 2.3)
545 (61.1%)
6 (0.7%)
Queen Attack Queen Attack
2,075
4,296 (avg. 2.1)
1,744 (84.0%)
13 (0.6%)
RNA Transcription RNA Transcription
2,644
6,305 (avg. 2.4)
2,195 (83.0%)
32 (1.2%)
Run-Length Encoding Run-Length Encoding
2,009
4,743 (avg. 2.4)
1,551 (77.2%)
28 (1.4%)
Saddle Points Saddle Points
2,713
4,254 (avg. 1.6)
1,827 (67.3%)
309 (11.4%)
Say Say
1,625
3,452 (avg. 2.1)
1,063 (65.4%)
12 (0.7%)
Scrabble Score Scrabble Score
1,997
3,407 (avg. 1.7)
1,707 (85.5%)
22 (1.1%)
Sieve Sieve
2,184
4,520 (avg. 2.1)
1,815 (83.1%)
28 (1.3%)
Simple Linked List Simple Linked List
3,471
16,241 (avg. 4.7)
2,256 (65.0%)
109 (3.1%)
Spiral Matrix Spiral Matrix
1,025
2,197 (avg. 2.1)
676 (66.0%)
8 (0.8%)
Tournament Tournament
2,367
15,175 (avg. 6.4)
1,713 (72.4%)
62 (2.6%)
Triangle Triangle
2,000
4,271 (avg. 2.1)
1,656 (82.8%)
23 (1.2%)
Two Bucket Two Bucket
985
1,474 (avg. 1.5)
511 (51.9%)
11 (1.1%)
Variable Length Quantity Variable Length Quantity
991
2,067 (avg. 2.1)
640 (64.6%)
6 (0.6%)
Robot Simulator Robot Simulator
2,727
10,287 (avg. 3.8)
2,257 (82.8%)
40 (1.5%)
Robot Name Robot Name
1,174
4,046 (avg. 3.4)
812 (69.2%)
29 (2.5%)
Protein Translation Protein Translation
1,107
3,157 (avg. 2.9)
768 (69.4%)
8 (0.7%)
OCR Numbers OCR Numbers
862
2,410 (avg. 2.8)
490 (56.8%)
9 (1.0%)
React React
1,285
3,287 (avg. 2.6)
425 (33.1%)
17 (1.3%)
Wordy Wordy
835
2,240 (avg. 2.7)
560 (67.1%)
7 (0.8%)
Custom Set Custom Set
1,062
3,158 (avg. 3.0)
705 (66.4%)
11 (1.0%)
Circular Buffer Circular Buffer
1,247
3,748 (avg. 3.0)
763 (61.2%)
24 (1.9%)
Rectangles Rectangles
966
3,704 (avg. 3.8)
489 (50.6%)
11 (1.1%)
Collatz Conjecture Collatz Conjecture
2,620
8,367 (avg. 3.2)
2,142 (81.8%)
46 (1.8%)
Diffie-Hellman Diffie-Hellman
2,334
7,486 (avg. 3.2)
1,598 (68.5%)
40 (1.7%)
Series Series
2,494
7,269 (avg. 2.9)
2,018 (80.9%)
36 (1.4%)
Accumulate Accumulate
1,014
3,036 (avg. 3.0)
743 (73.3%)
26 (2.6%)
Affine Cipher Affine Cipher
595
2,291 (avg. 3.9)
381 (64.0%)
5 (0.8%)
Atbash Cipher Atbash Cipher
1,984
5,188 (avg. 2.6)
1,509 (76.1%)
796 (40.1%)
Crypto Square Crypto Square
847
1,551 (avg. 1.8)
552 (65.2%)
5 (0.6%)
Diamond Diamond
658
1,762 (avg. 2.7)
435 (66.1%)
0 (0.0%)
Largest Series Product Largest Series Product
1,078
2,640 (avg. 2.4)
844 (78.3%)
16 (1.5%)
Luhn From Luhn From
972
1,842 (avg. 1.9)
711 (73.1%)
8 (0.8%)
Luhn Trait Luhn Trait
837
1,044 (avg. 1.2)
616 (73.6%)
3 (0.4%)
Phone Number Phone Number
912
2,189 (avg. 2.4)
687 (75.3%)
18 (2.0%)
Rail Fence Cipher Rail Fence Cipher
623
1,544 (avg. 2.5)
374 (60.0%)
4 (0.6%)
Roman Numerals Roman Numerals
1,052
2,122 (avg. 2.0)
791 (75.2%)
5 (0.5%)
Rotational Cipher Rotational Cipher
943
1,717 (avg. 1.8)
724 (76.8%)
12 (1.3%)
Simple Cipher Simple Cipher
746
2,207 (avg. 3.0)
463 (62.1%)
5 (0.7%)
Word Count Word Count
1,665
4,495 (avg. 2.7)
1,370 (82.3%)
40 (2.4%)
Fizzy Fizzy
789
3,189 (avg. 4.0)
399 (50.6%)
5 (0.6%)
Pythagorean Triplet Pythagorean Triplet
3,665
6,151 (avg. 1.7)
1,932 (52.7%)
1,314 (35.9%)
Xorcism Xorcism
667
2,606 (avg. 3.9)
222 (33.3%)
14 (2.1%)
Book Store Book Store
541
1,080 (avg. 2.0)
247 (45.7%)
6 (1.1%)
Decimal Decimal
669
2,019 (avg. 3.0)
283 (42.3%)
1 (0.1%)
Grep Grep
653
2,116 (avg. 3.2)
320 (49.0%)
7 (1.1%)
Scale Generator Scale Generator
1,061
4,125 (avg. 3.9)
454 (42.8%)
7 (0.7%)
Dominoes Dominoes
674
1,661 (avg. 2.5)
331 (49.1%)
14 (2.1%)
Doubly Linked List Doubly Linked List
665
1,617 (avg. 2.4)
175 (26.3%)
9 (1.4%)
Secret Handshake Secret Handshake
233
773 (avg. 3.3)
176 (75.5%)
9 (3.9%)
Knapsack Knapsack
77
297 (avg. 3.9)
42 (54.5%)
1 (1.3%)
Kindergarten Garden Kindergarten Garden
206
1,185 (avg. 5.8)
140 (68.0%)
3 (1.5%)
Yacht Yacht
86
467 (avg. 5.4)
57 (66.3%)
3 (3.5%)
3 deprecated practice exercises
Started
Attempts
Completions
Mentoring requests
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%)
Two Fer Two Fer
23
28 (avg. 1.2)
4 (17.4%)
1 (4.3%)
40 unimplemented practice exercises
Bank Account Bank Account
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Binary Search Tree Binary Search Tree
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Bottle Song Bottle Song
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Change Change
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Complex Numbers Complex Numbers
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Connect Connect
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D&D Character D&D Character
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Darts Darts
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Error Handling Error Handling
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Flatten Array Flatten Array
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Food Chain Food Chain
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Go Counting Go Counting
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Hangman Hangman
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House House
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Killer Sudoku Helper Killer Sudoku Helper
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Ledger Ledger
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Lens Person Lens Person
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Linked List Linked List
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List Ops List Ops
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Markdown Markdown
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Matrix Matrix
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Meetup Meetup
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Micro Blog Micro Blog
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POV POV
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REST API REST API
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Rational Numbers Rational Numbers
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Resistor Color Resistor Color
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Resistor Color Duo Resistor Color Duo
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Resistor Color Trio Resistor Color Trio
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SGF Parsing SGF Parsing
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Satellite Satellite
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Square Root Square Root
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State of Tic-Tac-Toe State of Tic-Tac-Toe
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Strain Strain
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Transpose Transpose
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Tree Building Tree Building
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Twelve Days Twelve Days
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Word Search Word Search
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Zebra Puzzle Zebra Puzzle
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Zipper Zipper
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3 foregone practice exercises
Binary Binary
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Octal Octal
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Trinary Trinary
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