Landon Curt Noll
54dcb885ee
Fixed some inconsistent use of display_via_github and display_as values.
336 lines
15 KiB
HTML
336 lines
15 KiB
HTML
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<head>
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<link rel="stylesheet" href="../../ioccc.css">
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
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<title>1989/jar.2 - Best of show</title>
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<link rel="icon" type="image/x-icon" href="../../favicon.ico">
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<meta name="description" content="1989 IOCCC entry jar.2 - Best of show">
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<meta name="keywords" content="IOCCC, 1989, IOCCC 1989, IOCCC entry, jar.2, Best of show">
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<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
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<!-- !!! Do not modify this web page, instead modify the file: 1989/jar.2/README.md !!! -->
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<!-- !!! Do not modify this web page, instead modify the file: 1989/jar.2/README.md !!! -->
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<div class="header">
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<img src="../../png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
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<h1>The International Obfuscated C Code Contest</h1>
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<h2>1989/jar.2 - Best of show</h2>
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</div>
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<div class="topnav">
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<a class="Left" href="../jar.1/index.html">← jar.1</a>
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<a class="Left" href="../index.html">↑ 1989 ↑</a>
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<a class="Left" href="../ovdluhe/index.html">ovdluhe →</a>
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<a class="Right" href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/jar.2.c">C code</a>
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<a class="Right" href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/Makefile">Makefile</a>
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<a class="Right" href="#inventory">Inventory</a>
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<div class="sidenav">
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<a href="#content">Jump to contents</a>
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<hr>
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<div class="sidenav">
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<a href="../../index.html">IOCCC Home</a>
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<a href="../../years.html">Winning Entries</a>
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<a href="../../authors.html">People who have won</a>
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<a href="../../location.html">Location of authors</a>
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<hr>
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<div class="sidenav">
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<a href="../../news.html">IOCCC News</a>
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<a href="../../status.html">Contest status</a>
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<a href="../../next/index.html">Rules and Guidelines</a>
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<a href="../../faq.html#submit">How to enter the IOCCC</a>
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<a href="../../faq.html">FAQ</a>
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</div>
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<hr>
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<div class="sidenav">
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<a href="../../bugs.html">Bugs & (mis)features</a>
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<a href="../../faq.html#fix_an_entry">Fixing IOCCC entries</a>
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<a href="../../faq.html#fix_web_site">Fixing the web site</a>
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<a href="../../faq.html#fix_author">Fixing author info</a>
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<a href="../../thanks-for-help.html">Thanks for the help</a>
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</div>
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<hr>
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<div class="sidenav">
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<a href="../../judges.html">The IOCCC Judges</a>
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<a href="../../contact.html">Contacting the IOCCC</a>
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</div>
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<h2 id="authors"><a name="author"></a>Authors:</h2>
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<ul>
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<li>Name: <a href="../../authors.html#Esko_Nuutila">Esko Nuutila</a><br>
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Location: <a href="../../location.html#FI">FI</a> - <em>Republic of Finland </em> (<em>Finland</em>)
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<br><br></li>
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<li>Name: <a href="../../authors.html#Jari_Arkko">Jari Arkko</a><br>
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Location: <a href="../../location.html#SE">SE</a> - <em>Kingdom of Sweden</em> (<em>Sweden</em>)
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<br><br></li>
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<li>Name: <a href="../../authors.html#Ora_Lassila">Ora Lassila</a><br>
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Location: <a href="../../location.html#US">US</a> - <em>United States of America</em> (<em>United States</em>)</li>
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</ul>
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<h2 id="to-build">To build:</h2>
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<pre><code> make all</code></pre>
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<h2 id="to-use">To use:</h2>
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<pre><code> ./jar.2
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[enter some lisp]
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./jar.2 < some_lisp_file</code></pre>
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<p>NOTE: this entry will likely segfault on invalid input.</p>
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<h2 id="try">Try:</h2>
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<pre><code> ./try.sh
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./try.sh chocolate_cake.lisp
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./try.sh try.txt</code></pre>
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<h2 id="judges-remarks">Judges’ remarks:</h2>
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<p>This is the most useful program submitted this year. It is a
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rather large subset of lisp. It has no error recovery, and
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performs rather poorly in a number of cases. Even so, placing
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all this functionality in such a small, densely packed program,
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is impressive enough to win the Best of show award.</p>
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<h2 id="authors-remarks">Author’s remarks:</h2>
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<p>This program implements a Lisp interpreter in 1465 bytes of source.
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Some sophisticated features supported, e.g. functionals and recursion.
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The special-forms/functions/variables implemented are:</p>
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<ul>
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<li>+</li>
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<li>-</li>
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<li>*</li>
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<li><</li>
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<li>()</li>
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<li>car</li>
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<li>cdr</li>
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<li>cons</li>
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<li>defun</li>
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<li>equal</li>
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<li>function</li>
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<li>if</li>
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<li>lambda</li>
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<li>quote</li>
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<li>t</li>
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</ul>
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<p>Below are sample lisp expressions you might choose to try as input.
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The program implements a conventional lisp listener, i.e. you type in
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lisp expressions (followed by CR), the program evaluates them and
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prints out the return values. End execution by typing an end-of-file
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character.</p>
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<pre><code> (+ 2.5 3.1)
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(defun fib (n)
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(if (< n 2)
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1
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(+ (fib (- n 2)) (fib (- n 1)))))
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(fib 10)
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(defun ! (x) (if (equal x 0) 1 (* x (! (- x 1)))))
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(! 7)
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(defun fn1 (fn) (+ (fn 1 2) (fn 3 4)))
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(defun fn2 (a b) (+ a b))
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(fn1 (function +))
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(fn1 (function fn2))
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(fn1 (function (lambda (z1 z2) (+ z1 z2))))
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(quote a)
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(cons (quote (a b)) (quote (c d e)))
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(cons (quote (f)) ())
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(car (quote (a b c)))
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(cdr (cdr (quote (g h i))))</code></pre>
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<p>Please do not leave any whitespace before the first parenthesis when
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you type your input, or any other unnecessary whitespace. Please try to
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avoid any undefined variables or functions, wrong number of arguments
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etc. All these errors are likely to dump core (i.e. there are no error
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checks in the program).</p>
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<p>Traditional Lisp implementations use cons cells as the main data
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structure. Lists are organized of pointer chains of these cells.
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In this program, an alternate representation was chosen: <code>char*'</code>s.
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All list operations, including the ones in the interpreter, are
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made using string representations of the lists. These operations
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must count parentheses and skip whitespace. This leads to extremely
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poor performance!</p>
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<!--
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Copyright © 1984-2024 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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||
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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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<h1 id="inventory-for-1989jar.2"><a name="inventory"></a>Inventory for 1989/jar.2</h1>
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<p><a href="#top">Jump to top</a></p>
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<h2 id="primary-files">Primary files</h2>
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<ul>
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<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/jar.2.c">jar.2.c</a> - entry source</li>
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<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/Makefile">Makefile</a> - entry Makefile</li>
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<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/jar.2.orig.c">jar.2.orig.c</a> - original source</li>
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<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/chocolate_cake.lisp">chocolate_cake.lisp</a> - input file</li>
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<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/fib.lisp">fib.lisp</a> - input file</li>
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<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/try.sh">try.sh</a> - how to run</li>
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<li><a href="try.txt">try.txt</a> - input file</li>
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</ul>
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<h2 id="secondary-files">Secondary files</h2>
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<ul>
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<li><a href="1989_jar.2.tar.bz2">1989_jar.2.tar.bz2</a> - download entry tarball</li>
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<li><a href="index.html">index.html</a> - this web page</li>
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<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/README.md">README.md</a> - markdown source for this web page</li>
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<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/.entry.json">.entry.json</a> - description of entry in JSON</li>
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<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
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<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1989/jar.2/.path">.path</a> - directory path from top directory</li>
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</ul>
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<!--
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Copyright © 1984-2024 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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<div class="footer">
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<h2><a name="copyright"></a>Copyright and CC BY-SA 4.0 License</h2>
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<p>All IOCCC content including this file and web page are:</p>
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<b> Copyright © 1984-2024 by Landon Curt Noll. <a href="https://creativecommons.org/faq/#what-does-some-rights-reserved-mean">Some Rights Reserved</a>.</b>
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<p>This work is licensed by Landon Curt Noll under:</p>
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<p xmlns:cc="http://creativecommons.org/ns#" ><b><a href="https://creativecommons.org/licenses/by-sa/4.0/?ref=chooser-v1"
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target="_blank" rel="license noopener noreferrer" style="display:inline-block;"> CC BY-SA 4.0
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<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
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src="../../png/cc.png"
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alt="cc inside circle symbol">
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<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
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src="../../png/by.png"
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alt="person inside circle symbol">
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<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
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src="../../png/sa.png"
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alt="arrow looping back on itself inside circle symbol">
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</a></b></p>
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<p>The <b>CC BY-SA 4.0 LEGAL CODE</b> for this license is found under:</p>
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<p> <b><a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode.en">
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https://creativecommons.org/licenses/by-sa/4.0/legalcode.en</a></b></p>
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<p>You should <b>carefully review</b> all of the terms and conditions of the
|
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<a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode.en">actual license</a>
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before using the licensed material.</p>
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<p>You may wish to review the <b><a href="../../license.html">highlights of some of the key
|
||
features and terms</a></b> of the <a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode.en">actual license</a>.</p>
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<h2>Coda</h2>
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<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F1989%2Fjar.2%2Findex.html">Nu HTML check this web page</a></p>
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<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
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