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  • a program that does not use 'a' or 'A' anywhere in the syntax of the program.
  • a program that does not use 'e' or 'E' anywhere in the syntax of the program.
  • a program that does not use 'i'  or 'I' anywhere in the syntax of the program.
  • a program that does not use 'o' or 'O' anywhere in the syntax of the program.
  • a program that does not use 'u' or 'U' anywhere in the syntax of the program.
  • a program that does not use 'a' anywhere in the syntax of the program.
  • a program that does not use 'e' anywhere in the syntax of the program.
  • a program that does not use 'i' anywhere in the syntax of the program.
  • a program that does not use 'o' anywhere in the syntax of the program.
  • a program that does not use 'u' anywhere in the syntax of the program.
  • a program that does not use 'a' or 'A' anywhere in the syntax of the program.
  • a program that does not use 'e' or 'E' anywhere in the syntax of the program.
  • a program that does not use 'i'  or 'I' anywhere in the syntax of the program.
  • a program that does not use 'o' or 'O' anywhere in the syntax of the program.
  • a program that does not use 'u' or 'U' anywhere in the syntax of the program.
45 added 78 characters in body
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Inspiration: in 1939, a man named Ernest Vincent Wright wrote a novel called Gadsby without using the letter 'e'.

Your task is to write a set of (up to 5) programs in any language (which has a text-based syntax*) to output all 26 letters of the alphabet in order. However for each vowel aeiou, at least one of the programs must not include any occurrence of the vowel.

So there must be

  • a program that does not use 'a' anywhere in the syntax of the program.
  • a program that does not use 'e' anywhere in the syntax of the program.
  • a program that does not use 'i' anywhere in the syntax of the program.
  • a program that does not use 'o' anywhere in the syntax of the program.
  • a program that does not use 'u' anywhere in the syntax of the program.

All of them must output abcdefghijklmnopqrstuvwxyz.

The winner shall be the solution where the length of all programs is the shortest.

* since the constraint wouldn't be much of a challenge in Piet or Whitespace


Current rankings (06 Mar 2014):

Inspiration: in 1939, a man named Ernest Vincent Wright wrote a novel called Gadsby without using the letter 'e'.

Your task is to write a set of (up to 5) programs in any language (which has a text-based syntax*) to output all 26 letters of the alphabet in order. However for each vowel aeiou, at least one of the programs must not include any occurrence of the vowel.

So there must be

  • a program that does not use 'a' anywhere in the syntax of the program.
  • a program that does not use 'e' anywhere in the syntax of the program.
  • a program that does not use 'i' anywhere in the syntax of the program.
  • a program that does not use 'o' anywhere in the syntax of the program.
  • a program that does not use 'u' anywhere in the syntax of the program.

All of them must output abcdefghijklmnopqrstuvwxyz.

The winner shall be the solution where the length of all programs is the shortest.

* since the constraint wouldn't be much of a challenge in Piet or Whitespace


Current rankings (06 Mar 2014):

Inspiration: in 1939, a man named Ernest Vincent Wright wrote a novel called Gadsby without using the letter 'e'.

Your task is to write a set of (up to 5) programs in any language (which has a text-based syntax*) to output all 26 letters of the alphabet in order. However for each vowel aeiou, at least one of the programs must not include any occurrence of the vowel.

So there must be

  • a program that does not use 'a' anywhere in the syntax of the program.
  • a program that does not use 'e' anywhere in the syntax of the program.
  • a program that does not use 'i' anywhere in the syntax of the program.
  • a program that does not use 'o' anywhere in the syntax of the program.
  • a program that does not use 'u' anywhere in the syntax of the program.

All of them must output abcdefghijklmnopqrstuvwxyz.

The winner shall be the solution where the length of all programs is the shortest.

* since the constraint wouldn't be much of a challenge in Piet or Whitespace


Current rankings (06 Mar 2014):

44 Added kotlin to scores
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Inspiration: in 1939, a man named Ernest Vincent Wright wrote a novel called Gadsby without using the letter 'e'.

Your task is to write a set of (up to 5) programs in any language (which has a text-based syntax*) to output all 26 letters of the alphabet in order. However for each vowel aeiou, at least one of the programs must not include any occurrence of the vowel.

So there must be

  • a program that does not use 'a' anywhere in the syntax of the program.
  • a program that does not use 'e' anywhere in the syntax of the program.
  • a program that does not use 'i' anywhere in the syntax of the program.
  • a program that does not use 'o' anywhere in the syntax of the program.
  • a program that does not use 'u' anywhere in the syntax of the program.

All of them must output abcdefghijklmnopqrstuvwxyz.

The winner shall be the solution where the length of all programs is the shortest.

* since the constraint wouldn't be much of a challenge in Piet or Whitespace


Current rankings (06 Mar 2014):

Inspiration: in 1939, a man named Ernest Vincent Wright wrote a novel called Gadsby without using the letter 'e'.

Your task is to write a set of (up to 5) programs in any language (which has a text-based syntax*) to output all 26 letters of the alphabet in order. However for each vowel aeiou, at least one of the programs must not include any occurrence of the vowel.

So there must be

  • a program that does not use 'a' anywhere in the syntax of the program.
  • a program that does not use 'e' anywhere in the syntax of the program.
  • a program that does not use 'i' anywhere in the syntax of the program.
  • a program that does not use 'o' anywhere in the syntax of the program.
  • a program that does not use 'u' anywhere in the syntax of the program.

All of them must output abcdefghijklmnopqrstuvwxyz.

The winner shall be the solution where the length of all programs is the shortest.

* since the constraint wouldn't be much of a challenge in Piet or Whitespace


Current rankings (06 Mar 2014):

Inspiration: in 1939, a man named Ernest Vincent Wright wrote a novel called Gadsby without using the letter 'e'.

Your task is to write a set of (up to 5) programs in any language (which has a text-based syntax*) to output all 26 letters of the alphabet in order. However for each vowel aeiou, at least one of the programs must not include any occurrence of the vowel.

So there must be

  • a program that does not use 'a' anywhere in the syntax of the program.
  • a program that does not use 'e' anywhere in the syntax of the program.
  • a program that does not use 'i' anywhere in the syntax of the program.
  • a program that does not use 'o' anywhere in the syntax of the program.
  • a program that does not use 'u' anywhere in the syntax of the program.

All of them must output abcdefghijklmnopqrstuvwxyz.

The winner shall be the solution where the length of all programs is the shortest.

* since the constraint wouldn't be much of a challenge in Piet or Whitespace


Current rankings (06 Mar 2014):

43 replaced http://codegolf.stackexchange.com/ with https://codegolf.stackexchange.com/
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42 edited tags
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    Mod Removes Wiki by Martin Ender
40 Fix mispelling of Clojure
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38 Updated scores
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36 Updated high score list
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34 Fixed line for javascript solution
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33 [Edit removed during grace period]
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30 Updated PowerShell answer is now at 62 rather than 75 characters.
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26 Link to new lowest Matlab submission.
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