Standard ML

1,434 students

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Exercises

Build Status

24 contributors

53 mentors

1,434
students have developed their Standard ML skills on Exercism.

Students

1,434

Submissions

7,729

Mentoring Discussions

101

The Standard ML track needs attention ⚠️

Building

Build

Use your knowledge to build the Standard ML track itself

24 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. Standard ML is currently utilising a Version 1 Test Runner. Find out more.

Usage statistics

Total Test Runner Runs

7,276

Test Run Pass Rate

33.2% (2416)

Test Run Fail Rate

65.3% (4752)

Test Run Error Rate

1.5% (108)

Build Analyzers

Learn More

Build an Analyzer for Standard ML: 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 40 practice exercises. Find out more.

Usage statistics

33 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

655

856 (avg. 1.3)

462 (70.5%)

0 (0.0%)

Leap

314

989 (avg. 3.1)

210 (66.9%)

31 (9.9%)

Two Fer

252

925 (avg. 3.7)

179 (71.0%)

37 (14.7%)

Space Age

134

721 (avg. 5.4)

96 (71.6%)

2 (1.5%)

Pangram

102

411 (avg. 4.0)

54 (52.9%)

3 (2.9%)

Collatz Conjecture

515 (avg. 5.4)

70 (72.9%)

6 (6.3%)

Matching Brackets

361 (avg. 4.8)

42 (56.0%)

4 (5.3%)

Allergies

276 (avg. 4.3)

38 (59.4%)

3 (4.7%)

Accumulate

132 (avg. 1.6)

71 (86.6%)

6 (7.3%)

All Your Base

173 (avg. 2.7)

33 (50.8%)

3 (4.6%)

Anagram

184 (avg. 3.8)

32 (66.7%)

1 (2.1%)

Atbash Cipher

247 (avg. 6.7)

28 (75.7%)

0 (0.0%)

Bob

194 (avg. 3.7)

31 (59.6%)

1 (1.9%)

Diamond

111 (avg. 3.7)

22 (73.3%)

0 (0.0%)

Difference of Squares

139 (avg. 2.7)

39 (75.0%)

2 (3.8%)

Flatten Array

129 (avg. 2.7)

36 (75.0%)

2 (4.2%)

Hamming

127 (avg. 2.5)

37 (74.0%)

2 (4.0%)

List Ops

229 (avg. 5.9)

28 (71.8%)

0 (0.0%)

Nth Prime

72 (avg. 2.1)

25 (73.5%)

1 (2.9%)

Perfect Numbers

132 (avg. 4.0)

24 (72.7%)

1 (3.0%)

Phone Number

106 (avg. 3.3)

23 (71.9%)

0 (0.0%)

Pig Latin

113 (avg. 3.4)

20 (60.6%)

1 (3.0%)

Prime Factors

43 (avg. 1.3)

20 (62.5%)

1 (3.1%)

Raindrops

53 (avg. 1.6)

25 (73.5%)

0 (0.0%)

RNA Transcription

55 (avg. 1.7)

24 (75.0%)

0 (0.0%)

Roman Numerals

53 (avg. 2.0)

19 (70.4%)

0 (0.0%)

Sum of Multiples

99 (avg. 2.5)

25 (62.5%)

0 (0.0%)

Reverse String

80 (avg. 2.9)

24 (85.7%)

1 (3.6%)

Acronym

32 (avg. 2.5)

11 (84.6%)

0 (0.0%)

Affine Cipher

58 (avg. 4.1)

9 (64.3%)

0 (0.0%)

Gigasecond

23 (avg. 2.1)

5 (45.5%)

0 (0.0%)

Triangle

63 (avg. 5.3)

9 (75.0%)

0 (0.0%)

Pascals Triangle

24 (avg. 1.6)

7 (46.7%)

0 (0.0%)

1 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Binary

4 (avg. 1.3)

2 (66.7%)

0 (0.0%)

96 unimplemented practice exercises

Alphametics

Armstrong Numbers

Bank Account

Binary Search

Binary Search Tree

Book Store

Bottle Song

Bowling

Change

Circular Buffer

Clock

Complex Numbers

Connect

Crypto Square

Custom Set

D&D Character

DOT DSL

Darts

Dominoes

ETL

Error Handling

Food Chain

Forth

Go Counting

Grade School

Grains

Grep

Hangman

High Scores

House

ISBN Verifier

Isogram

Killer Sudoku Helper

Kindergarten Garden

Knapsack

Largest Series Product

Ledger

Lens Person

Linked List

Luhn

Markdown

Matrix

Meetup

Micro Blog

Minesweeper

Nucleotide Count

OCR Numbers

POV

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Poker

Protein Translation

Proverb

Pythagorean Triplet

Queen Attack

REST API

Rail Fence Cipher

Rational Numbers

React

Rectangles

Resistor Color

Resistor Color Duo

Resistor Color Trio

Robot Name

Robot Simulator

Rotational Cipher

Run-Length Encoding

SGF Parsing

Saddle Points

Satellite

Say

Scale Generator

Scrabble Score

Secret Handshake

Series

Sieve

Simple Cipher

Simple Linked List

Spiral Matrix

Square Root

State of Tic-Tac-Toe

Strain

Sublist

Tournament

Transpose

Tree Building

Twelve Days

Two Bucket

Variable Length Quantity

Word Count

Word Search

Wordy

Yacht

Zebra Puzzle

Zipper

Volunteers

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846

sshine

672

kytrinyx

525

+ 17 more

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Exercism relies on open-source volunteers to build our language tracks and mentor students.

Become an Exercism Volunteer

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Your Journey

Community Videos

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Discord

Forum

Getting started

Mentoring

Docs

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About Exercism

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Insiders

SWAG

1,434 students have developed their Standard ML skills on Exercism.

The Standard ML track needs attention ⚠️

Build

Build Test Runners

Usage statistics

Build Analyzers

Build Representers

Create Practice Exercises

Usage statistics

We 💙 our volunteers

1,434
students have developed their Standard ML skills on Exercism.