File:Enumeration of text file by size and lexicographic order, valid C programs highlighted.gif
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English: Shows excerpts from an enumeration of the set T of all text files buildable from ASCII characters in range 0x20...0x7e (i.e. ' '...'~'), ordered by file size (i.e. string length, as no control charcters like newline are admitted), and strings of same length ordered lexicographically. The existence of such an enumeration ensures that T is countable; hence its proper subset TC of all C programs (without any preprocessor code, but with otherwise sloppiest possible syntax requirements) is countable, too. Members of TC are shown in green, other members of T in red. The last line supposedly shows the shortest C program printing "Hello World". The rank number of a string s is about two times as long as s itself, since 95 different characters are possible in each column. |
| Date | |
| Source | Own work |
| Author | Jochen Burghardt |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:03, 7 December 2013 | | 1,312 × 2,010 (52 KB) | Jochen Burghardt (talk | contribs) | {{Information |Description ={{en|1=Shows excerpts from an enumeration of the set ''T'' of all text files buildable from ASCII characters in range 0x20...0x7e (i.e. ' '...'~'), ordered by file size (i.e. string length, as no control charcters like ne... |
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