Files
ioccc/2000/natori/index.html
T
Landon Curt Noll bd63d57cb5 improve topbar for non-JavaScript and fix some internal links
For browsers that have JavaScript disabled, topbar puts up
a link that reads "Please Enable JavaScript" instead of the
so-called "hamburger menu" icon.

Fixed a number of internal links that were broken
when by commit `e7d69bc23270e8ad73d391d15d4c996ffbd33cc3 and
perhaps a few other earlier commits.

Ran `make www` to perform the above.
2024-04-24 22:55:35 -07:00

556 lines
21 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<!-- START: two lines up starts content from: inc/top.default.html -->
<!-- END: this line ends content from: inc/top.default.html -->
<!-- START: this line starts content from: inc/head.default.html -->
<head>
<link rel="stylesheet" href="../../ioccc.css">
<link href="https://fonts.googleapis.com/css2?family=Outfit:wght@100..900&display=swap" rel="stylesheet">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<title>2000/natori - Best Small Program</title>
<link rel="icon" type="image/x-icon" href="../../favicon.ico">
<meta name="description" content="2000 IOCCC entry natori - Best Small Program">
<meta name="keywords" content="IOCCC, 2000, IOCCC 2000, IOCCC entry, natori, Best Small Program">
</head>
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
<!-- END: this line ends content from: inc/head.default.html -->
<!-- -->
<!-- This web page was formed via the tool: bin/readme2index.sh -->
<!-- The content of main section of this web page came from: 2000/natori/README.md -->
<!-- -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
<!-- !!! Do not modify this web page, instead modify the file: 2000/natori/README.md !!! -->
<!-- !!! Do not modify this web page, instead modify the file: 2000/natori/README.md !!! -->
<!-- !!! Do not modify this web page, instead modify the file: 2000/natori/README.md !!! -->
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
<!-- Markdown content was converted into HTML via the tool: bin/md2html.sh -->
<!-- START: this line starts content from: inc/body.default.html -->
<body>
<!-- END: this line ends content from: inc/body.default.html -->
<!-- START: this line starts content from: inc/topbar.default.html -->
<div class="theader">
<nav class="topbar">
<div class="container">
<div class="logo">
<a href="../../index.html" class="logo-link">
IOCCC
</a>
</div>
<div class="topbar-items">
<div class="item">
<span class="item-header">
Entries
</span>
<div class="sub-item">
<div class="outfit-font">
<a href="../../years.html" class="sub-item-link">
Winning Entries
</a>
</div>
<div class="outfit-font">
<a href="../../authors.html" class="sub-item-link">
People who have won
</a>
</div>
<div class="outfit-font">
<a href="../../location.html" class="sub-item-link">
Location of authors
</a>
</div>
<div class="outfit-font">
<a href="../../bugs.html" class="sub-item-link">
Bugs &amp; (Mis)features
</a>
</div>
</div>
</div>
<div class="item">
<span class="item-header">
Status
</span>
<div class="sub-item">
<div class="outfit-font">
<a href="../../news.html" class="sub-item-link">
IOCCC News
</a>
</div>
<div class="outfit-font">
<a href="../../status.html" class="sub-item-link">
Contest status
</a>
</div>
<div class="outfit-font">
<a href="../../next/index.html" class="sub-item-link">
Rules &amp; Guidelines
</a>
</div>
</div>
</div>
<div class="item">
<span class="item-header">
FAQ
</span>
<div class="sub-item">
<div class="outfit-font">
<a href="../../faq.html" class="sub-item-link">
FAQ
</a>
</div>
<div class="outfit-font">
<a href="../../faq.html#submit" class="sub-item-link">
How to enter the IOCCC
</a>
</div>
<div class="outfit-font">
<a href="../../faq.html#fix_an_entry" class="sub-item-link">
Fixing IOCCC entries
</a>
</div>
<div class="outfit-font">
<a href="../../faq.html#fix_web_site" class="sub-item-link">
Fixing the web site
</a>
</div>
<div class="outfit-font">
<a href="../../faq.html#fix_author" class="sub-item-link">
Fixing author info
</a>
</div>
</div>
</div>
<div class="item">
<span class="item-header">
About
</span>
<div class="sub-item">
<div class="outfit-font">
<a href="../../index.html" class="sub-item-link">
IOCCC Home
</a>
</div>
<div class="outfit-font">
<a href="../../judges.html" class="sub-item-link">
The IOCCC Judges
</a>
</div>
<div class="outfit-font">
<a href="../../contact.html" class="sub-item-link">
Contacting the IOCCC
</a>
</div>
<div class="outfit-font">
<a href="../../thanks-for-help.html" class="sub-item-link">
Thanks for the help
</a>
</div>
</div>
</div>
</div>
</div>
</nav>
<div class="header-mobile-menu">
<noscript>
<a href="../../nojs-menu.html" class="topbar-js-label">
Please Enable JavaScript
</a>
</noscript>
<button id="header-open-menu-button" class="topbar-mobile-menu">
<img
src="../../png/hamburger-icon-open.png"
alt="hamburger style menu icon - open state"
width=48
height=48
/>
</button>
<button id="header-close-menu-button" class="hide-content">
<img
src="../../png/hamburger-icon-closed.png"
alt="hamburger style menu icon - closed state"
width=48
height=48
/>
</button>
<div id="mobile-menu-panel" class="hide-content">
<div class="mobile-menu-container">
<div class="mobile-menu-wrapper">
<div class="mobile-menu-item">
Entries
</div>
<div class="mobile-submenu-wrapper">
<a class="mobile-submenu-item" href="../../years.html">
Winning Entries
</a>
<a class="mobile-submenu-item" href="../../authors.html">
People who have won
</a>
<a class="mobile-submenu-item" href="../../location.html">
Location of authors
</a>
<a class="mobile-submenu-item" href="../../bugs.html">
Bugs &amp; (Mis)features
</a>
</div>
</div>
<div class="mobile-menu-wrapper">
<div class="mobile-menu-item">
Status
</div>
<div class="mobile-submenu-wrapper">
<a class="mobile-submenu-item" href="../../status.html">
Contest status
</a>
<a class="mobile-submenu-item" href="../../next/index.html">
Rules &amp; Guidelines
</a>
<a class="mobile-submenu-item" href="../../news.html">
IOCCC News
</a>
</div>
</div>
<div class="mobile-menu-wrapper">
<div class="mobile-menu-item">
FAQ
</div>
<div class="mobile-submenu-wrapper">
<a class="mobile-submenu-item" href="../../faq.html">
Frequently Asked Questions
</a>
<a class="mobile-submenu-item" href="../../faq.html#submit">
How to enter the IOCCC
</a>
<a class="mobile-submenu-item" href="../../faq.html#fix_an_entry">
Fixing IOCCC entries
</a>
<a class="mobile-submenu-item" href="../../faq.html#fix_web_site">
Fixing the web site
</a>
<a class="mobile-submenu-item" href="../../faq.html#fix_author">
Fixing author info
</a>
</div>
</div>
<div class="mobile-menu-wrapper">
<div class="mobile-menu-item">
About
</div>
<div class="mobile-submenu-wrapper">
<a class="mobile-submenu-item" href="../../index.html">
IOCCC Home
</a>
<a class="mobile-submenu-item" href="../../judges.html">
The IOCCC Judges
</a>
<a class="mobile-submenu-item" href="../../contact.html">
Contacting the IOCCC
</a>
<a class="mobile-submenu-item" href="../../thanks-for-help.html">
Thanks for the help
</a>
</div>
</div>
</div>
</div>
</div>
</div>
<script>
var headerOpenMenuButton = document.getElementById("header-open-menu-button");
var headerCloseMenuButton = document.getElementById("header-close-menu-button");
var mobileMenuPanel = document.getElementById("mobile-menu-panel");
headerOpenMenuButton.addEventListener("click", () => {
headerOpenMenuButton.classList.remove("topbar-mobile-menu");
headerOpenMenuButton.classList.add("hide-content");
headerCloseMenuButton.classList.remove("hide-content");
headerCloseMenuButton.classList.add("topbar-mobile-menu");
mobileMenuPanel.classList.remove("hide-content");
mobileMenuPanel.classList.add("topbar-mobile-panel");
});
headerCloseMenuButton.addEventListener("click", () => {
headerCloseMenuButton.classList.remove("topbar-mobile-menu");
headerCloseMenuButton.classList.add("hide-content");
mobileMenuPanel.classList.add("hide-content");
mobileMenuPanel.classList.remove("topbar-mobile-panel");
headerOpenMenuButton.classList.add("topbar-mobile-menu");
headerOpenMenuButton.classList.remove("hide-content");
});
</script>
<!-- END: this line ends content from: inc/topbar.default.html -->
<!-- START: this line starts content from: inc/header.default.html -->
<div class="header">
<a href="../../2011/zucker/index.html">
<img src="../../png/ioccc.png"
alt="IOCCC image by Matt Zucker"
width=300
height=110>
</a>
<h1>The International Obfuscated C Code Contest</h1>
<h2>2000/natori - Best Small Program</h2>
</div>
<!-- END: this line ends content from: inc/header.default.html -->
<!-- START: this line starts content from: inc/navbar.mid.html -->
<div class="navbar">
<a class="Left" href="../jarijyrki/index.html">&larr; jarijyrki</a>
<a class="Left" href="../index.html">&uarr; 2000 &uarr;</a>
<a class="Left" href="../primenum/index.html">primenum &rarr;</a>
<a class="Right" href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/natori.c">C code</a>
<a class="Right" href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/Makefile">Makefile</a>
<a class="Right" href="#inventory">Inventory</a>
<a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2000%2Fnatori%2Findex.html">&#x2713;</a>
</div>
<!-- END: this line ends content from: inc/navbar.mid.html -->
<!-- START: this line starts content from: inc/before-content.default.html -->
<div class="content" id="content">
<!-- END: this line ends content from: inc/before-content.default.html -->
<!-- START: this line starts content for HTML phase 20 by: bin/output-index-author.sh via bin/md2html.sh -->
<!-- START: this line starts content generated by: bin/output-index-author.sh -->
<h2 id="author">Author:</h2>
<ul>
<li>Name: <a href="../../authors.html#NATORI_Shin">NATORI Shin</a><br>
Location: <a href="../../location.html#JP">JP</a> - <em>Japan</em></li>
</ul>
<!-- END: next line ends content generated by: bin/output-index-author.sh -->
<!-- END: this line ends content for HTML phase 20 by: bin/output-index-author.sh via bin/md2html.sh -->
<!-- START: this line starts content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.sh -->
<!-- BEFORE: 1st line of markdown file: 2000/natori/README.md -->
<h2 id="to-build">To build:</h2>
<pre><code> make</code></pre>
<p>An alt version exists for those in the southern hemisphere (or those who want to
see what it would be in the southern hemisphere). See <a href="#alternate-code">alternate
version</a> below.</p>
<h2 id="to-use">To use:</h2>
<pre><code> ./natori</code></pre>
<h2 id="try">Try:</h2>
<pre><code> ./try.sh</code></pre>
<p>Try running this on different days, say a few days apart (even better if the
Moon phase changes), and each time run it several times in a row (or several
times in a day).</p>
<p>Also try modifying the code so that it will show another Moon phase based on
input or else just by the code itself. Bonus points if you can make it show all.</p>
<p>NOTE: if it’s a Full Moon the script won’t look as nice.</p>
<h2 id="alternate-code">Alternate code:</h2>
<p>The author noted that those in the southern hemisphere might want to change
<code>acos(l/2)</code> into <code>acos(-l/2)</code> which we have done in the alternate version.</p>
<h3 id="alternate-build">Alternate build:</h3>
<p>To run the alternate code that supports the southern hemisphere:</p>
<pre><code> make alt</code></pre>
<h3 id="alternate-use">Alternate use:</h3>
<pre><code> ./natori.alt</code></pre>
<p>Try running this on different days, say a few days apart, and each time run it
several times in a row (or several times in a day).</p>
<p>What happens if you run it in the northern hemisphere? Are there any
differences?</p>
<p>Can you identify any Moon phases that result in the same output of both
versions? Or are there any?</p>
<h3 id="alternate-try">Alternate try:</h3>
<pre><code> ./try.alt.sh</code></pre>
<p>Like with <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/try.sh">try.sh</a>, try using this multiple times in a row or throughout
the day on different days (if different phases of the Moon you’ll see more of a
difference, of course).</p>
<p>NOTE: if it’s a Full Moon the script won’t look as nice.</p>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>Here is a nice compact program that changes with the phase of the Moon.
Can you figure out how it does it?</p>
<p>The ANSI-C committee, among their multiple misdeeds, broke perfectly fun C
programs by making it intractable for them to declare their own non-traditional
prototype for <code>main()</code>. We have had to uglify this program in order to prevent
C compilers from failing to compile it due to (the now changed) unusual arg
types of the <code>main()</code> function.</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>This program outputs a rough image of the moon in its current phase.
The main obfuscation of this entry is its complicated double recursion
(without any loop or conditional statement).</p>
<p>People living in the southern hemisphere may want to change <code>acos(l/2)</code>
into <code>acos(-l/2)</code>.</p>
<!--
Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.
You are free to share and adapt this file under the terms of this license:
Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/
-->
<!-- AFTER: last line of markdown file: 2000/natori/README.md -->
<!-- END: this line ends content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.sh -->
<!-- START: this line starts content for HTML phase 22 by: bin/output-index-inventory.sh via bin/md2html.sh -->
<!-- START: this line starts content generated by: bin/output-index-inventory.sh -->
<div id="inventory">
<h1 id="inventory-for-2000natori">Inventory for 2000/natori</h1>
</div>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/natori.c">natori.c</a> - entry source</li>
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/Makefile">Makefile</a> - entry Makefile</li>
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/natori.alt.c">natori.alt.c</a> - alternative source</li>
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/natori.orig.c">natori.orig.c</a> - original source</li>
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/try.alt.sh">try.alt.sh</a> - how to run alternative code</li>
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/try.sh">try.sh</a> - how to run</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a href="2000_natori.tar.bz2">2000_natori.tar.bz2</a> - download entry tarball</li>
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/README.md">README.md</a> - markdown source for this web page</li>
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/.entry.json">.entry.json</a> - description of entry in JSON</li>
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2000/natori/.path">.path</a> - directory path from top directory</li>
<li><a href="index.html">index.html</a> - this web page</li>
</ul>
<hr style="width:10%;text-align:left;margin-left:0">
<h4>
Jump to: <a href="#">top</a>
</h4>
<!-- END: next line ends content generated by: bin/output-index-inventory.sh -->
<!-- END: this line ends content for HTML phase 22 by: bin/output-index-inventory.sh via bin/md2html.sh -->
<!-- START: this line starts content from: inc/after-content.default.html -->
</div>
<!-- END: this line ends content from: inc/after-content.default.html -->
<!-- START: this line starts content from: inc/footer.default.html -->
<!--
Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.
You are free to share and adapt this file under the terms of this license:
Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
For more information, see:
https://creativecommons.org/licenses/by-sa/4.0/
-->
<div class="footer">
<div id="copyright"><h2>Copyright and CC BY-SA 4.0 License</h2></div>
<p>All IOCCC content including this file and web page are:</p>
<b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copyright &copy; 1984-2024 by Landon Curt Noll. <a href="https://creativecommons.org/faq/#what-does-some-rights-reserved-mean">Some Rights Reserved</a>.</b>
<p>This work is licensed by Landon Curt Noll under:</p>
<p><b><a href="https://creativecommons.org/licenses/by-sa/4.0/?ref=chooser-v1"
target="_blank" rel="license noopener noreferrer" style="display:inline-block;">&nbsp;&nbsp;&nbsp;&nbsp;CC BY-SA 4.0
<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
src="../../png/cc.png"
alt="cc inside circle symbol">
<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
src="../../png/by.png"
alt="person inside circle symbol">
<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;"
src="../../png/sa.png"
alt="arrow looping back on itself inside circle symbol">
</a></b></p>
<p>The <b>CC BY-SA 4.0 LEGAL CODE</b> for this license is found under:</p>
<p>&nbsp;&nbsp;&nbsp;<b><a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode.en">
https://creativecommons.org/licenses/by-sa/4.0/legalcode.en</a></b></p>
<p>You should <b>carefully review</b> all of the terms and conditions of the
<a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode.en">actual license</a>
before using the licensed material.</p>
<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>
<h2>Coda</h2>
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2000%2Fnatori%2Findex.html">Nu HTML check this web page</a></p>
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
</div>
<!-- END: this line ends content from: inc/footer.default.html -->
<!-- START: this line starts content from: inc/bottom.default.html -->
</body>
</html>
<!-- END: this line ends content from: inc/bottom.default.html -->