Prepare for the winners of **IOCCC28**. > However these are not the 2024 droids you are looking for. :-) The HTML menu (both JavaScript and non-JavaScript) has been updated. The `Status -> Rules and guidelines' have been replaced with two separate menus `Status -> IOCCC rules` and `Status -> IOCCC guidelines`. Added a new top level `social.html` page: built from a new `social.md`. Sorted rules for building specific web pages in the top level `Makefile`. Added `make social` to make the `social.html` page from `social.md`. The `bin/gen-top-html.sh` now is able to process a argument of **social** to process the new top level `social.html` page. Changed `bin/gen-top-html.sh` VERSION from "2.0.0 2025-03-13" to "2.0.1 2025-07-25". Below `About -> Home page` a new `About -> IOCCC social media` menu item as added. Because the menu change touched every HTML file, we changed the general copyright date range for HTML files from "1984-2024" to "1984-2025" due to the extensive changes made for **IOCCC28**. Those markdown files that were modified in 2025 had their copyright date range also changed from "1984-2024" to "1984-2025". Rebuilt tarballs and sitemap due to the extensive HTML rebuilding. Ran `make update` to perform the above.
113 lines
3.8 KiB
Markdown
113 lines
3.8 KiB
Markdown
# Twenty Second International Obfuscated C Code Contest
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## Standard IOCCC stuff
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View the `index.html` web page for the given winning entry for information on how
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compile the entry and how to run the winning program. Look at the winning
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source and try to figure how it does what it does! You may then wish to look at
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the Author's remarks for even more details.
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Some ANSI C compilers are not quite as good as they should be. If
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yours is lacking, you may need to compile using gcc instead of your
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local compiler.
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### Historical note:
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The IOCCC has a website and now has a number of international mirrors.
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The primary website can be found at [www.ioccc.org](https://www.ioccc.org).
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### Historical update:
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The IOCCC website once had a number of
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[international mirrors](https://web.archive.org/web/20201030210517/https://www.ioccc.org/mirror.html).
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As of 2020 Dec 29, [GitHub](https://www.github.com) serves as the distributed server farm for the
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[IOCCC winner repo](https://github.com/ioccc-src/winner) that GitHub renders as
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[Official IOCCC website - www.ioccc.org](https://www.ioccc.org).
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## Remarks on some of the entries
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We believe you will again be impressed with this year's winning entries.
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This year, 9 won 15 awards. For the first time in the history of the contest,
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one person, [Yusuke Endoh](../authors.html#Yusuke_Endoh) won
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4 times while [Adrian Cable](../authors.html#Adrian_Cable)
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won 3 times! It is also worth noting that [Chris
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Mills](../authors.html#Christopher_Mills)' last win was in
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[1993](../years.html#1993).
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Welcome back Chris!
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We, the judges, were very surprised by this as many of the multiple
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authors submitted very different styles of entries.
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This year was the first time the [IOCCC size tool](%%REPO_URL%%/2013/iocccsize.c) was used. Entries
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had to print a value 2053 or less when the `-i` flag was used.
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Several people discovered an undocumented feature in that
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certain comments such as:
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``` <!---c-->
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///*
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```
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or:
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``` <!---c-->
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*\
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/
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```
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were not correctly parsed by the tool. The guidelines stated:
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> In cases where the above summary and the algorithm implemented by the IOCCC
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size tool source code conflict, the algorithm implemented by the IOCCC size tool
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source code is preferred by the judges.
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... so this abuse was allowed (and encouraged). The judges hope that
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the IOCCC size tool author will patch the tool to block this kind
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of size abuse in future contests.
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There were some outstanding entries that did not win. Unfortunately
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some very good entries lost because they:
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* were way way oversized and didn't even attempt to justify their
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excess by a clever abuse of the rules
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* depended on a single obfuscation trick
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* could only be run on a particular vendor's platform
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* were very similar to previous winning entry
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* didn't work as documented
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We hope that the authors of some of those entries will fix and resubmit them
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for the next IOCCC.
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There is a risk in submitting an entry that is similar to a well used theme by
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previous winning entries. Previous entries set a very high bar. A new entry must not
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only compete against other submissions from the current year but they must also
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excel over similar previous winning entry in some particularly impressive way.
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## Final Comments
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**IMPORTANT NOTE**: See [contact.html](../contact.html) for up to date contact details
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as well as details on how to provide fixes to any of the entries.
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See also the [IOCCC FAQ](../faq.html) for additional information on the IOCCC.
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<!--
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Copyright © 1984-2025 by Landon Curt Noll. All Rights Reserved.
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You are free to share and adapt this file under the terms of this license:
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Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
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For more information, see:
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https://creativecommons.org/licenses/by-sa/4.0/
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-->
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