C#
C#
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C# Track Management

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

Students
137,809
Submissions
4,705,554
Mentoring Discussions
21,646

The C# track is exemplar ✨

Building

C# syllabus

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Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

62 concepts being taught
Ar
Arrays
10,395 learnt
Fo
For Loops
10,395 learnt
Fo
Foreach Loops
10,395 learnt
Ba
Basics
35,356 learnt
Bo
Booleans
25,145 learnt
Ca
Casting
3,486 learnt
Ch
Chars
5,656 learnt
St
String Builder
5,656 learnt
Cl
Classes
10,816 learnt
Co
Constants
1,483 learnt
De
Defensive Copying
1,483 learnt
Re
Readonly Collections
1,483 learnt
Co
Constructors
6,869 learnt
Da
Datetimes
6,146 learnt
Di
Dictionaries
4,070 learnt
En
Enums
3,379 learnt
Eq
Equality
1,822 learnt
Se
Sets
1,822 learnt
Ex
Exceptions
3,140 learnt
Co
Conditionals Ternary
2,033 learnt
Ex
Expression Bodied Members
2,033 learnt
Sw
Switch Expressions
2,033 learnt
Th
Throw Expressions
2,033 learnt
At
Attributes
1,895 learnt
Fl
Flag Enums
1,895 learnt
Do
Do While Loops
9,689 learnt
Fl
Floating Point Numbers
9,689 learnt
Wh
While Loops
9,689 learnt
In
Inheritance
5,056 learnt
In
Integral Numbers
2,626 learnt
In
Interfaces
2,039 learnt
Or
Ordering
2,039 learnt
Ge
Generic Types
5,053 learnt
Li
Lists
5,053 learnt
Me
Method Overloading
1,828 learnt
Na
Named Arguments
1,828 learnt
Op
Optional Parameters
1,828 learnt
Na
Namespaces
1,045 learnt
Ne
Nested Types
1,079 learnt
Nu
Nullability
7,456 learnt
If
If Statements
16,117 learnt
Nu
Numbers
16,117 learnt
Ob
Object Initializers
1,644 learnt
Op
Operator Overloading
1,318 learnt
Ov
Overflow
1,684 learnt
Pa
Parameters
1,375 learnt
Pr
Properties
2,332 learnt
Ra
Randomness
8,003 learnt
Re
Regular Expressions
1,047 learnt
Re
Resource Cleanup
1,620 learnt
Re
Resource Lifetime
1,289 learnt
St
String Formatting
1,368 learnt
Ve
Verbatim Strings
1,368 learnt
St
Strings
17,622 learnt
St
Structs
1,143 learnt
Sw
Switch Statements
3,426 learnt
Ti
Time
1,718 learnt
Ti
Timezone
1,718 learnt
Tu
Tuples
9,271 learnt
Ex
Exception Filtering
1,085 learnt
Us
User Defined Exceptions
1,085 learnt
Ex
Extension Methods
9,214 learnt
42 active learning exercises
Started
Attempts
Completions
Mentoring requests
Bird Watcher Bird Watcher
14,482
179,580 (avg. 12.4)
10,395 (71.8%)
140 (1.0%)
Lucian's Luscious Lasagna Lucian's Luscious Lasagna
51,714
292,111 (avg. 5.6)
35,356 (68.4%)
345 (0.7%)
Annalyn's Infiltration Annalyn's Infiltration
30,650
303,090 (avg. 9.9)
25,145 (82.0%)
289 (0.9%)
Secure Munchester United Secure Munchester United
3,968
30,030 (avg. 7.6)
3,486 (87.9%)
37 (0.9%)
Squeaky Clean Squeaky Clean
7,600
170,117 (avg. 22.4)
5,656 (74.4%)
117 (1.5%)
Jedlik's Toys Jedlik's Toys
11,723
129,043 (avg. 11.0)
10,816 (92.3%)
109 (0.9%)
Authentication System Authentication System
1,873
20,341 (avg. 10.9)
1,483 (79.2%)
14 (0.7%)
Need for Speed Need for Speed
7,663
126,725 (avg. 16.5)
6,869 (89.6%)
90 (1.2%)
Booking up for Beauty Booking up for Beauty
6,804
83,099 (avg. 12.2)
6,146 (90.3%)
48 (0.7%)
International Calling Connoisseur International Calling Connoisseur
4,327
60,719 (avg. 14.0)
4,070 (94.1%)
33 (0.8%)
Logs, Logs, Logs! Logs, Logs, Logs!
3,563
32,691 (avg. 9.2)
3,379 (94.8%)
22 (0.6%)
Face ID 2.0 Face ID 2.0
2,106
29,194 (avg. 13.9)
1,822 (86.5%)
32 (1.5%)
Calculator Conundrum Calculator Conundrum
3,298
28,575 (avg. 8.7)
3,140 (95.2%)
34 (1.0%)
The Weather in Deather The Weather in Deather
2,225
15,917 (avg. 7.2)
2,033 (91.4%)
29 (1.3%)
Attack of the Trolls Attack of the Trolls
2,073
24,328 (avg. 11.7)
1,895 (91.4%)
17 (0.8%)
Interest is Interesting Interest is Interesting
10,893
150,767 (avg. 13.8)
9,689 (88.9%)
94 (0.9%)
Wizards and Warriors Wizards and Warriors
5,484
50,218 (avg. 9.2)
5,056 (92.2%)
56 (1.0%)
Hyper-optimized Telemetry Hyper-optimized Telemetry
4,244
63,895 (avg. 15.1)
2,626 (61.9%)
55 (1.3%)
Remote Control Competition Remote Control Competition
2,229
24,462 (avg. 11.0)
2,039 (91.5%)
22 (1.0%)
Tracks on Tracks on Tracks Tracks on Tracks on Tracks
5,377
90,110 (avg. 16.8)
5,053 (94.0%)
50 (0.9%)
Wizards and Warriors 2.0 Wizards and Warriors 2.0
1,918
14,546 (avg. 7.6)
1,828 (95.3%)
16 (0.8%)
Red vs. Blue: Darwin Style Red vs. Blue: Darwin Style
1,125
6,039 (avg. 5.4)
1,045 (92.9%)
3 (0.3%)
Remote Control Cleanup Remote Control Cleanup
1,239
14,052 (avg. 11.3)
1,079 (87.1%)
18 (1.5%)
Tim from Marketing Tim from Marketing
7,896
64,528 (avg. 8.2)
7,456 (94.4%)
74 (0.9%)
Cars, Assemble! Cars, Assemble!
17,763
184,537 (avg. 10.4)
16,117 (90.7%)
157 (0.9%)
Developer Privileges Developer Privileges
1,765
13,050 (avg. 7.4)
1,644 (93.1%)
14 (0.8%)
Hyperia Forex Hyperia Forex
1,431
14,054 (avg. 9.8)
1,318 (92.1%)
19 (1.3%)
Hyperinflation Hits Hyperia Hyperinflation Hits Hyperia
1,759
12,896 (avg. 7.3)
1,684 (95.7%)
12 (0.7%)
Building Telemetry Building Telemetry
1,475
13,601 (avg. 9.2)
1,375 (93.2%)
10 (0.7%)
Weighing Machine Weighing Machine
2,513
41,647 (avg. 16.6)
2,332 (92.8%)
21 (0.8%)
Roll the Die! Roll the Die!
8,394
41,974 (avg. 5.0)
8,003 (95.3%)
54 (0.6%)
Parsing Log Files Parsing Log Files
1,185
20,214 (avg. 17.1)
1,047 (88.4%)
11 (0.9%)
Object Relational Mapping Object Relational Mapping
1,854
18,062 (avg. 9.7)
1,620 (87.4%)
13 (0.7%)
Orm in One Go Orm in One Go
1,369
8,523 (avg. 6.2)
1,289 (94.2%)
13 (0.9%)
High School Sweethearts High School Sweethearts
1,457
25,453 (avg. 17.5)
1,368 (93.9%)
8 (0.5%)
Log Levels Log Levels
23,258
300,861 (avg. 12.9)
17,622 (75.8%)
300 (1.3%)
Land Grab in Space Land Grab in Space
1,245
13,287 (avg. 10.7)
1,143 (91.8%)
15 (1.2%)
Football Match Reports Football Match Reports
3,680
75,464 (avg. 20.5)
3,426 (93.1%)
39 (1.1%)
Beauty Salon Goes Global Beauty Salon Goes Global
2,120
37,472 (avg. 17.7)
1,718 (81.0%)
25 (1.2%)
Phone Number Analysis Phone Number Analysis
10,229
75,692 (avg. 7.4)
9,271 (90.6%)
89 (0.9%)
Instruments of Texas Instruments of Texas
1,193
11,081 (avg. 9.3)
1,085 (90.9%)
18 (1.5%)
Log Analysis Log Analysis
11,438
168,778 (avg. 14.8)
9,214 (80.6%)
122 (1.1%)

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: 17be73148971fbc72fd635e951f5e6a16846be72 (Updates should be instant)

Next goal: Implement 134 practice exercises. Find out more.
133 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
107,959
307,644 (avg. 2.8)
73,991 (68.5%)
32 (0.0%)
Two Fer Two Fer
8,343
14,664 (avg. 1.8)
6,592 (79.0%)
2,596 (31.1%)
Leap Leap
16,450
63,037 (avg. 3.8)
14,759 (89.7%)
2,434 (14.8%)
Gigasecond Gigasecond
6,978
13,141 (avg. 1.9)
6,104 (87.5%)
831 (11.9%)
Resistor Color Resistor Color
6,595
25,247 (avg. 3.8)
5,772 (87.5%)
1,639 (24.9%)
Space Age Space Age
6,265
27,363 (avg. 4.4)
5,454 (87.1%)
1,272 (20.3%)
High Scores High Scores
3,509
11,881 (avg. 3.4)
2,964 (84.5%)
973 (27.7%)
Hamming Hamming
4,519
11,126 (avg. 2.5)
4,028 (89.1%)
934 (20.7%)
Nucleotide Count Nucleotide Count
3,696
9,961 (avg. 2.7)
3,364 (91.0%)
864 (23.4%)
Robot Name Robot Name
4,551
37,956 (avg. 8.3)
3,310 (72.7%)
728 (16.0%)
Allergies Allergies
2,868
13,456 (avg. 4.7)
2,192 (76.4%)
457 (15.9%)
Grade School Grade School
2,698
11,886 (avg. 4.4)
2,281 (84.5%)
405 (15.0%)
Rotational Cipher Rotational Cipher
3,296
25,544 (avg. 7.8)
2,729 (82.8%)
346 (10.5%)
Circular Buffer Circular Buffer
1,765
11,646 (avg. 6.6)
1,319 (74.7%)
238 (13.5%)
Clock Clock
1,773
13,159 (avg. 7.4)
1,377 (77.7%)
233 (13.1%)
Bob Bob
9,865
160,178 (avg. 16.2)
7,813 (79.2%)
846 (8.6%)
Matching Brackets Matching Brackets
1,463
10,634 (avg. 7.3)
1,170 (80.0%)
178 (12.2%)
Spiral Matrix Spiral Matrix
1,864
14,173 (avg. 7.6)
1,339 (71.8%)
129 (6.9%)
Tournament Tournament
941
8,147 (avg. 8.7)
665 (70.7%)
95 (10.1%)
Variable Length Quantity Variable Length Quantity
616
3,629 (avg. 5.9)
382 (62.0%)
53 (8.6%)
Dominoes Dominoes
3,046
30,011 (avg. 9.9)
1,043 (34.2%)
85 (2.8%)
Forth Forth
446
4,719 (avg. 10.6)
228 (51.1%)
25 (5.6%)
Pangram Pangram
5,904
20,125 (avg. 3.4)
4,860 (82.3%)
321 (5.4%)
Isogram Isogram
3,969
16,694 (avg. 4.2)
3,553 (89.5%)
179 (4.5%)
Acronym Acronym
3,160
15,842 (avg. 5.0)
2,728 (86.3%)
183 (5.8%)
Grains Grains
2,507
7,478 (avg. 3.0)
2,178 (86.9%)
105 (4.2%)
Perfect Numbers Perfect Numbers
2,105
7,178 (avg. 3.4)
1,870 (88.8%)
78 (3.7%)
Collatz Conjecture Collatz Conjecture
2,695
8,516 (avg. 3.2)
2,492 (92.5%)
90 (3.3%)
Phone Number Phone Number
2,082
12,003 (avg. 5.8)
1,753 (84.2%)
67 (3.2%)
Scrabble Score Scrabble Score
3,901
22,007 (avg. 5.6)
3,349 (85.8%)
126 (3.2%)
Meetup Meetup
1,741
8,583 (avg. 4.9)
1,255 (72.1%)
44 (2.5%)
Difference of Squares Difference of Squares
6,381
35,175 (avg. 5.5)
5,563 (87.2%)
153 (2.4%)
Resistor Color Duo Resistor Color Duo
2,232
12,630 (avg. 5.7)
2,078 (93.1%)
36 (1.6%)
Resistor Color Trio Resistor Color Trio
759
4,789 (avg. 6.3)
689 (90.8%)
7 (0.9%)
Series Series
1,914
7,238 (avg. 3.8)
1,661 (86.8%)
90 (4.7%)
Sum of Multiples Sum of Multiples
4,615
26,082 (avg. 5.7)
3,754 (81.3%)
300 (6.5%)
Accumulate Accumulate
3,052
9,299 (avg. 3.0)
2,530 (82.9%)
133 (4.4%)
All Your Base All Your Base
946
5,781 (avg. 6.1)
715 (75.6%)
22 (2.3%)
Largest Series Product Largest Series Product
935
3,609 (avg. 3.9)
780 (83.4%)
17 (1.8%)
Pascal's Triangle Pascal's Triangle
1,016
4,330 (avg. 4.3)
795 (78.2%)
22 (2.2%)
Prime Factors Prime Factors
1,028
3,493 (avg. 3.4)
905 (88.0%)
19 (1.8%)
Pythagorean Triplet Pythagorean Triplet
2,751
19,147 (avg. 7.0)
1,842 (67.0%)
54 (2.0%)
Armstrong Numbers Armstrong Numbers
1,689
5,718 (avg. 3.4)
1,523 (90.2%)
44 (2.6%)
Darts Darts
4,734
30,142 (avg. 6.4)
4,110 (86.8%)
66 (1.4%)
Triangle Triangle
4,447
37,187 (avg. 8.4)
4,070 (91.5%)
112 (2.5%)
Rational Numbers Rational Numbers
1,040
5,185 (avg. 5.0)
713 (68.6%)
25 (2.4%)
Complex Numbers Complex Numbers
588
2,706 (avg. 4.6)
492 (83.7%)
9 (1.5%)
Raindrops Raindrops
2,292
5,519 (avg. 2.4)
2,149 (93.8%)
155 (6.8%)
Bottle Song Bottle Song
110
1,158 (avg. 10.5)
80 (72.7%)
3 (2.7%)
Proverb Proverb
2,031
13,304 (avg. 6.6)
1,830 (90.1%)
27 (1.3%)
Strain Strain
1,476
3,467 (avg. 2.3)
1,192 (80.8%)
27 (1.8%)
House House
602
2,338 (avg. 3.9)
482 (80.1%)
8 (1.3%)
Protein Translation Protein Translation
2,658
24,946 (avg. 9.4)
2,243 (84.4%)
54 (2.0%)
Roman Numerals Roman Numerals
2,671
20,147 (avg. 7.5)
2,143 (80.2%)
72 (2.7%)
Simple Cipher Simple Cipher
822
4,918 (avg. 6.0)
609 (74.1%)
25 (3.0%)
ETL ETL
2,014
5,463 (avg. 2.7)
1,823 (90.5%)
60 (3.0%)
Parallel Letter Frequency Parallel Letter Frequency
770
3,353 (avg. 4.4)
583 (75.7%)
19 (2.5%)
Alphametics Alphametics
293
227 (avg. 0.8)
97 (33.1%)
1 (0.3%)
Sieve Sieve
1,092
5,847 (avg. 5.4)
959 (87.8%)
24 (2.2%)
Anagram Anagram
2,957
29,222 (avg. 9.9)
2,366 (80.0%)
94 (3.2%)
Binary Search Binary Search
2,424
19,112 (avg. 7.9)
2,023 (83.5%)
70 (2.9%)
Kindergarten Garden Kindergarten Garden
1,202
5,616 (avg. 4.7)
1,031 (85.8%)
76 (6.3%)
Secret Handshake Secret Handshake
1,204
9,043 (avg. 7.5)
969 (80.5%)
28 (2.3%)
Matrix Matrix
726
3,918 (avg. 5.4)
598 (82.4%)
9 (1.2%)
Crypto Square Crypto Square
1,112
12,172 (avg. 10.9)
548 (49.3%)
28 (2.5%)
Food Chain Food Chain
458
3,053 (avg. 6.7)
371 (81.0%)
5 (1.1%)
Minesweeper Minesweeper
469
1,971 (avg. 4.2)
355 (75.7%)
7 (1.5%)
Scale Generator Scale Generator
545
3,838 (avg. 7.0)
341 (62.6%)
4 (0.7%)
Tree Building Tree Building
466
1,680 (avg. 3.6)
327 (70.2%)
5 (1.1%)
Change Change
475
4,223 (avg. 8.9)
255 (53.7%)
11 (2.3%)
Rectangles Rectangles
604
4,211 (avg. 7.0)
331 (54.8%)
6 (1.0%)
Wordy Wordy
414
3,432 (avg. 8.3)
287 (69.3%)
15 (3.6%)
Connect Connect
258
1,302 (avg. 5.0)
161 (62.4%)
7 (2.7%)
SGF Parsing SGF Parsing
223
945 (avg. 4.2)
131 (58.7%)
0 (0.0%)
Atbash Cipher Atbash Cipher
552
4,455 (avg. 8.1)
483 (87.5%)
16 (2.9%)
Binary Search Tree Binary Search Tree
529
2,404 (avg. 4.5)
371 (70.1%)
8 (1.5%)
Flatten Array Flatten Array
839
5,631 (avg. 6.7)
597 (71.2%)
14 (1.7%)
List Ops List Ops
504
2,889 (avg. 5.7)
408 (81.0%)
16 (3.2%)
Sublist Sublist
518
3,319 (avg. 6.4)
376 (72.6%)
8 (1.5%)
Ledger Ledger
314
1,572 (avg. 5.0)
217 (69.1%)
6 (1.9%)
OCR Numbers OCR Numbers
329
2,242 (avg. 6.8)
252 (76.6%)
5 (1.5%)
Saddle Points Saddle Points
1,661
13,360 (avg. 8.0)
1,087 (65.4%)
69 (4.2%)
Palindrome Products Palindrome Products
274
325 (avg. 1.2)
197 (71.9%)
13 (4.7%)
Hangman Hangman
311
668 (avg. 2.1)
140 (45.0%)
2 (0.6%)
Two Bucket Two Bucket
257
981 (avg. 3.8)
150 (58.4%)
1 (0.4%)
Go Counting Go Counting
279
1,221 (avg. 4.4)
175 (62.7%)
2 (0.7%)
D&D Character D&D Character
908
7,528 (avg. 8.3)
732 (80.6%)
19 (2.1%)
Queen Attack Queen Attack
966
4,124 (avg. 4.3)
857 (88.7%)
14 (1.4%)
Robot Simulator Robot Simulator
955
4,742 (avg. 5.0)
804 (84.2%)
17 (1.8%)
Bank Account Bank Account
871
2,419 (avg. 2.8)
674 (77.4%)
18 (2.1%)
Simple Linked List Simple Linked List
638
4,517 (avg. 7.1)
428 (67.1%)
9 (1.4%)
Error Handling Error Handling
983
3,877 (avg. 3.9)
811 (82.5%)
20 (2.0%)
Affine Cipher Affine Cipher
303
2,380 (avg. 7.9)
216 (71.3%)
3 (1.0%)
ISBN Verifier ISBN Verifier
650
4,737 (avg. 7.3)
536 (82.5%)
13 (2.0%)
Twelve Days Twelve Days
467
1,229 (avg. 2.6)
391 (83.7%)
6 (1.3%)
Word Count Word Count
854
3,554 (avg. 4.2)
714 (83.6%)
30 (3.5%)
Yacht Yacht
407
2,870 (avg. 7.1)
326 (80.1%)
8 (2.0%)
DOT DSL DOT DSL
273
1,366 (avg. 5.0)
186 (68.1%)
2 (0.7%)
Linked List Linked List
772
3,963 (avg. 5.1)
526 (68.1%)
14 (1.8%)
Diamond Diamond
328
1,269 (avg. 3.9)
235 (71.6%)
6 (1.8%)
Grep Grep
358
2,584 (avg. 7.2)
261 (72.9%)
4 (1.1%)
Luhn Luhn
668
6,851 (avg. 10.3)
567 (84.9%)
7 (1.0%)
Markdown Markdown
581
2,504 (avg. 4.3)
399 (68.7%)
26 (4.5%)
State of Tic-Tac-Toe State of Tic-Tac-Toe
33
208 (avg. 6.3)
21 (63.6%)
1 (3.0%)
Word Search Word Search
728
8,913 (avg. 12.2)
387 (53.2%)
11 (1.5%)
Bowling Bowling
528
6,967 (avg. 13.2)
289 (54.7%)
10 (1.9%)
REST API REST API
481
5,086 (avg. 10.6)
188 (39.1%)
10 (2.1%)
Poker Poker
340
2,321 (avg. 6.8)
170 (50.0%)
2 (0.6%)
Run-Length Encoding Run-Length Encoding
1,575
25,712 (avg. 16.3)
1,294 (82.2%)
48 (3.0%)
Pig Latin Pig Latin
1,110
13,555 (avg. 12.2)
623 (56.1%)
33 (3.0%)
Transpose Transpose
632
8,483 (avg. 13.4)
375 (59.3%)
3 (0.5%)
Say Say
371
3,072 (avg. 8.3)
284 (76.5%)
6 (1.6%)
Book Store Book Store
962
8,324 (avg. 8.7)
475 (49.4%)
29 (3.0%)
Custom Set Custom Set
280
1,927 (avg. 6.9)
214 (76.4%)
1 (0.4%)
Nth Prime Nth Prime
320
1,322 (avg. 4.1)
256 (80.0%)
4 (1.3%)
Rail Fence Cipher Rail Fence Cipher
796
9,199 (avg. 11.6)
437 (54.9%)
14 (1.8%)
Diffie-Hellman Diffie-Hellman
1,600
9,525 (avg. 6.0)
990 (61.9%)
18 (1.1%)
Zebra Puzzle Zebra Puzzle
373
1,091 (avg. 2.9)
172 (46.1%)
3 (0.8%)
React React
360
2,045 (avg. 5.7)
162 (45.0%)
4 (1.1%)
POV POV
185
1,106 (avg. 6.0)
116 (62.7%)
1 (0.5%)
Zipper Zipper
196
860 (avg. 4.4)
119 (60.7%)
1 (0.5%)
Reverse String Reverse String
6,057
19,873 (avg. 3.3)
5,484 (90.5%)
166 (2.7%)
RNA Transcription RNA Transcription
2,395
5,119 (avg. 2.1)
2,084 (87.0%)
95 (4.0%)
Conway's Game of Life Conway's Game of Life
294
1,918 (avg. 6.5)
153 (52.0%)
6 (2.0%)
Eliud's Eggs Eliud's Eggs
514
2,850 (avg. 5.5)
408 (79.4%)
4 (0.8%)
Knapsack Knapsack
267
1,917 (avg. 7.2)
136 (50.9%)
2 (0.7%)
Square Root Square Root
243
1,136 (avg. 4.7)
205 (84.4%)
2 (0.8%)
Killer Sudoku Helper Killer Sudoku Helper
38
85 (avg. 2.2)
17 (44.7%)
0 (0.0%)
Satellite Satellite
31
293 (avg. 9.5)
22 (71.0%)
1 (3.2%)
Intergalactic Transmission Intergalactic Transmission
9
62 (avg. 6.9)
8 (88.9%)
0 (0.0%)
Split-Second Stopwatch Split-Second Stopwatch
31
250 (avg. 8.1)
16 (51.6%)
0 (0.0%)
Baffling Birthdays Baffling Birthdays
12
136 (avg. 11.3)
10 (83.3%)
0 (0.0%)
Swift Scheduling Swift Scheduling
14
84 (avg. 6.0)
8 (57.1%)
1 (7.1%)
5 deprecated practice exercises
Started
Attempts
Completions
Mentoring requests
Beer Song Beer Song
1,942
26,901 (avg. 13.9)
1,517 (78.1%)
33 (1.7%)
Binary Binary
80
106 (avg. 1.3)
79 (98.8%)
6 (7.5%)
Hexadecimal Hexadecimal
22
23 (avg. 1.0)
21 (95.5%)
0 (0.0%)
Octal Octal
43
50 (avg. 1.2)
42 (97.7%)
2 (4.7%)
Trinary Trinary
52
67 (avg. 1.3)
51 (98.1%)
3 (5.8%)
1 unimplemented practice exercise
Relative Distance Relative Distance
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6 foregone practice exercises
Counter Counter
View dataThe link opens in a new window or tab
Lens Person Lens Person
View dataThe link opens in a new window or tab
Micro Blog Micro Blog
View dataThe link opens in a new window or tab
Nucleotide Codons Nucleotide Codons
View dataThe link opens in a new window or tab
PaaS I/O PaaS I/O
View dataThe link opens in a new window or tab
Point Mutations Point Mutations
View dataThe link opens in a new window or tab

Programming Tags

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

244 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: 64e144cf598378d18b1a36b756b07a126b16e0dd (Takes up to 10 mins to deploy)

Total Test Runner Runs
4,637,488
Test Run Pass Rate
14.6% (676379)
Test Run Fail Rate
39.4% (1829332)
Test Run Error Rate
46.0% (2131777)

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: 8ba686a767099e087d0aefe03030d24c9c1153c5 (Takes up to 10 mins to deploy)

Total Representer Runs
634,961
Total Representation Comments Made
71,014
Feedback Given Frequency
11.2%

Analyzer

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

Current version: 3678f4aba42d7ad4f043ea5d8d7afd35a61ce081 (Takes up to 10 mins to deploy)

Total Analyzer Runs
626,776
Total Analysis Comments Made
300,879
Feedback Given Frequency
5.4%