You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1184 lines
43 KiB
1184 lines
43 KiB
11 months ago
|
|
||
|
<!doctype html>
|
||
|
<html lang="en" class="no-js">
|
||
|
<head>
|
||
|
|
||
|
<meta charset="utf-8">
|
||
|
<meta name="viewport" content="width=device-width,initial-scale=1">
|
||
|
|
||
|
<meta name="description" content="Data Structures and Algorithms Crash Course with Animated Illustrations and Off-the-Shelf Code">
|
||
|
|
||
|
|
||
|
<meta name="author" content="Krahets">
|
||
|
|
||
|
|
||
|
<link rel="canonical" href="https://www.hello-algo.com/en/chapter_preface/about_the_book/">
|
||
|
|
||
|
|
||
|
<link rel="prev" href="../">
|
||
|
|
||
|
|
||
|
<link rel="next" href="../suggestions/">
|
||
|
|
||
|
|
||
|
<link rel="icon" href="../../assets/images/favicon.png">
|
||
|
<meta name="generator" content="mkdocs-1.5.3, mkdocs-material-9.5.2">
|
||
|
|
||
|
|
||
|
|
||
|
<title>0.1 The Book - Hello Algo</title>
|
||
|
|
||
|
|
||
|
|
||
|
<link rel="stylesheet" href="../../assets/stylesheets/main.50c56a3b.min.css">
|
||
|
|
||
|
|
||
|
<link rel="stylesheet" href="../../assets/stylesheets/palette.06af60db.min.css">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
|
||
|
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CFira+Code:400,400i,700,700i&display=fallback">
|
||
|
<style>:root{--md-text-font:"Roboto";--md-code-font:"Fira Code"}</style>
|
||
|
|
||
|
|
||
|
|
||
|
<link rel="stylesheet" href="../../stylesheets/extra.css">
|
||
|
|
||
|
<script>__md_scope=new URL("../..",location),__md_hash=e=>[...e].reduce((e,_)=>(e<<5)-e+_.charCodeAt(0),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<link href="../../assets/stylesheets/glightbox.min.css" rel="stylesheet"/><style>
|
||
|
html.glightbox-open { overflow: initial; height: 100%; }
|
||
|
.gslide-title { margin-top: 0px; user-select: text; }
|
||
|
.gslide-desc { color: #666; user-select: text; }
|
||
|
.gslide-image img { background: white; }
|
||
|
|
||
|
.gscrollbar-fixer { padding-right: 15px; }
|
||
|
.gdesc-inner { font-size: 0.75rem; }
|
||
|
body[data-md-color-scheme="slate"] .gdesc-inner { background: var(--md-default-bg-color);}
|
||
|
body[data-md-color-scheme="slate"] .gslide-title { color: var(--md-default-fg-color);}
|
||
|
body[data-md-color-scheme="slate"] .gslide-desc { color: var(--md-default-fg-color);}
|
||
|
</style> <script src="../../assets/javascripts/glightbox.min.js"></script></head>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<body dir="ltr" data-md-color-scheme="default" data-md-color-primary="white" data-md-color-accent="indigo">
|
||
|
|
||
|
|
||
|
<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
|
||
|
<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
|
||
|
<label class="md-overlay" for="__drawer"></label>
|
||
|
<div data-md-component="skip">
|
||
|
|
||
|
|
||
|
<a href="#01-the-book" class="md-skip">
|
||
|
Skip to content
|
||
|
</a>
|
||
|
|
||
|
</div>
|
||
|
<div data-md-component="announce">
|
||
|
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<header class="md-header md-header--shadow" data-md-component="header">
|
||
|
<nav class="md-header__inner md-grid" aria-label="Header">
|
||
|
<a href="../.." title="Hello Algo" class="md-header__button md-logo" aria-label="Hello Algo" data-md-component="logo">
|
||
|
|
||
|
<img src="../../assets/images/logo.svg" alt="logo">
|
||
|
|
||
|
</a>
|
||
|
<label class="md-header__button md-icon" for="__drawer">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2Z"/></svg>
|
||
|
</label>
|
||
|
<div class="md-header__title" data-md-component="header-title">
|
||
|
<div class="md-header__ellipsis">
|
||
|
<div class="md-header__topic">
|
||
|
<span class="md-ellipsis">
|
||
|
Hello Algo
|
||
|
</span>
|
||
|
</div>
|
||
|
<div class="md-header__topic" data-md-component="header-topic">
|
||
|
<span class="md-ellipsis">
|
||
|
|
||
|
0.1 The Book
|
||
|
|
||
|
</span>
|
||
|
</div>
|
||
|
</div>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
<form class="md-header__option" data-md-component="palette">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<input class="md-option" data-md-color-media="" data-md-color-scheme="default" data-md-color-primary="white" data-md-color-accent="indigo" aria-label="Switch to dark mode" type="radio" name="__palette" id="__palette_0">
|
||
|
|
||
|
<label class="md-header__button md-icon" title="Switch to dark mode" for="__palette_1" hidden>
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M7.5 2c-1.79 1.15-3 3.18-3 5.5s1.21 4.35 3.03 5.5C4.46 13 2 10.54 2 7.5A5.5 5.5 0 0 1 7.5 2m11.57 1.5 1.43 1.43L4.93 20.5 3.5 19.07 19.07 3.5m-6.18 2.43L11.41 5 9.97 6l.42-1.7L9 3.24l1.75-.12.58-1.65L12 3.1l1.73.03-1.35 1.13.51 1.67m-3.3 3.61-1.16-.73-1.12.78.34-1.32-1.09-.83 1.36-.09.45-1.29.51 1.27 1.36.03-1.05.87.4 1.31M19 13.5a5.5 5.5 0 0 1-5.5 5.5c-1.22 0-2.35-.4-3.26-1.07l7.69-7.69c.67.91 1.07 2.04 1.07 3.26m-4.4 6.58 2.77-1.15-.24 3.35-2.53-2.2m4.33-2.7 1.15-2.77 2.2 2.54-3.35.23m1.15-4.96-1.14-2.78 3.34.24-2.2 2.54M9.63 18.93l2.77 1.15-2.53 2.19-.24-3.34Z"/></svg>
|
||
|
</label>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<input class="md-option" data-md-color-media="" data-md-color-scheme="slate" data-md-color-primary="grey" data-md-color-accent="indigo" aria-label="Switch to light mode" type="radio" name="__palette" id="__palette_1">
|
||
|
|
||
|
<label class="md-header__button md-icon" title="Switch to light mode" for="__palette_0" hidden>
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M7.5 2c-1.79 1.15-3 3.18-3 5.5s1.21 4.35 3.03 5.5C4.46 13 2 10.54 2 7.5A5.5 5.5 0 0 1 7.5 2m11.57 1.5 1.43 1.43L4.93 20.5 3.5 19.07 19.07 3.5m-6.18 2.43L11.41 5 9.97 6l.42-1.7L9 3.24l1.75-.12.58-1.65L12 3.1l1.73.03-1.35 1.13.51 1.67m-3.3 3.61-1.16-.73-1.12.78.34-1.32-1.09-.83 1.36-.09.45-1.29.51 1.27 1.36.03-1.05.87.4 1.31M19 13.5a5.5 5.5 0 0 1-5.5 5.5c-1.22 0-2.35-.4-3.26-1.07l7.69-7.69c.67.91 1.07 2.04 1.07 3.26m-4.4 6.58 2.77-1.15-.24 3.35-2.53-2.2m4.33-2.7 1.15-2.77 2.2 2.54-3.35.23m1.15-4.96-1.14-2.78 3.34.24-2.2 2.54M9.63 18.93l2.77 1.15-2.53 2.19-.24-3.34Z"/></svg>
|
||
|
</label>
|
||
|
|
||
|
|
||
|
</form>
|
||
|
|
||
|
|
||
|
|
||
|
<script>var media,input,key,value,palette=__md_get("__palette");if(palette&&palette.color){"(prefers-color-scheme)"===palette.color.media&&(media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']"),palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent"));for([key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}</script>
|
||
|
|
||
|
|
||
|
<div class="md-header__option">
|
||
|
<div class="md-select">
|
||
|
|
||
|
<button class="md-header__button md-icon" aria-label="Select language">
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="m12.87 15.07-2.54-2.51.03-.03A17.52 17.52 0 0 0 14.07 6H17V4h-7V2H8v2H1v2h11.17C11.5 7.92 10.44 9.75 9 11.35 8.07 10.32 7.3 9.19 6.69 8h-2c.73 1.63 1.73 3.17 2.98 4.56l-5.09 5.02L4 19l5-5 3.11 3.11.76-2.04M18.5 10h-2L12 22h2l1.12-3h4.75L21 22h2l-4.5-12m-2.62 7 1.62-4.33L19.12 17h-3.24Z"/></svg>
|
||
|
</button>
|
||
|
<div class="md-select__inner">
|
||
|
<ul class="md-select__list">
|
||
|
|
||
|
<li class="md-select__item">
|
||
|
<a href="/" hreflang="zh" class="md-select__link">
|
||
|
中文
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
<li class="md-select__item">
|
||
|
<a href="/en/" hreflang="en" class="md-select__link">
|
||
|
English
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
</ul>
|
||
|
</div>
|
||
|
</div>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
<label class="md-header__button md-icon" for="__search">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z"/></svg>
|
||
|
</label>
|
||
|
<div class="md-search" data-md-component="search" role="dialog">
|
||
|
<label class="md-search__overlay" for="__search"></label>
|
||
|
<div class="md-search__inner" role="search">
|
||
|
<form class="md-search__form" name="search">
|
||
|
<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
|
||
|
<label class="md-search__icon md-icon" for="__search">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z"/></svg>
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
|
||
|
</label>
|
||
|
<nav class="md-search__options" aria-label="Search">
|
||
|
|
||
|
<a href="javascript:void(0)" class="md-search__icon md-icon" title="Share" aria-label="Share" data-clipboard data-clipboard-text="" data-md-component="search-share" tabindex="-1">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M18 16.08c-.76 0-1.44.3-1.96.77L8.91 12.7c.05-.23.09-.46.09-.7 0-.24-.04-.47-.09-.7l7.05-4.11c.54.5 1.25.81 2.04.81a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3c0 .24.04.47.09.7L8.04 9.81C7.5 9.31 6.79 9 6 9a3 3 0 0 0-3 3 3 3 0 0 0 3 3c.79 0 1.5-.31 2.04-.81l7.12 4.15c-.05.21-.08.43-.08.66 0 1.61 1.31 2.91 2.92 2.91 1.61 0 2.92-1.3 2.92-2.91A2.92 2.92 0 0 0 18 16.08Z"/></svg>
|
||
|
</a>
|
||
|
|
||
|
<button type="reset" class="md-search__icon md-icon" title="Clear" aria-label="Clear" tabindex="-1">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41Z"/></svg>
|
||
|
</button>
|
||
|
</nav>
|
||
|
|
||
|
<div class="md-search__suggest" data-md-component="search-suggest"></div>
|
||
|
|
||
|
</form>
|
||
|
<div class="md-search__output">
|
||
|
<div class="md-search__scrollwrap" data-md-scrollfix>
|
||
|
<div class="md-search-result" data-md-component="search-result">
|
||
|
<div class="md-search-result__meta">
|
||
|
Initializing search
|
||
|
</div>
|
||
|
<ol class="md-search-result__list" role="presentation"></ol>
|
||
|
</div>
|
||
|
</div>
|
||
|
</div>
|
||
|
</div>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
<div class="md-header__source">
|
||
|
<a href="https://github.com/krahets/hello-algo" title="Go to repository" class="md-source" data-md-component="source">
|
||
|
<div class="md-source__icon md-icon">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 496 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M165.9 397.4c0 2-2.3 3.6-5.2 3.6-3.3.3-5.6-1.3-5.6-3.6 0-2 2.3-3.6 5.2-3.6 3-.3 5.6 1.3 5.6 3.6zm-31.1-4.5c-.7 2 1.3 4.3 4.3 4.9 2.6 1 5.6 0 6.2-2s-1.3-4.3-4.3-5.2c-2.6-.7-5.5.3-6.2 2.3zm44.2-1.7c-2.9.7-4.9 2.6-4.6 4.9.3 2 2.9 3.3 5.9 2.6 2.9-.7 4.9-2.6 4.6-4.6-.3-1.9-3-3.2-5.9-2.9zM244.8 8C106.1 8 0 113.3 0 252c0 110.9 69.8 205.8 169.5 239.2 12.8 2.3 17.3-5.6 17.3-12.1 0-6.2-.3-40.4-.3-61.4 0 0-70 15-84.7-29.8 0 0-11.4-29.1-27.8-36.6 0 0-22.9-15.7 1.6-15.4 0 0 24.9 2 38.6 25.8 21.9 38.6 58.6 27.5 72.9 20.9 2.3-16 8.8-27.1 16-33.7-55.9-6.2-112.3-14.3-112.3-110.5 0-27.5 7.6-41.3 23.6-58.9-2.6-6.5-11.1-33.3 2.6-67.9 20.9-6.5 69 27 69 27 20-5.6 41.5-8.5 62.8-8.5s42.8 2.9 62.8 8.5c0 0 48.1-33.6 69-27 13.7 34.7 5.2 61.4 2.6 67.9 16 17.7 25.8 31.5 25.8 58.9 0 96.5-58.9 104.2-114.8 110.5 9.2 7.9 17 22.9 17 46.4 0 33.7-.3 75.4-.3 83.6 0 6.5 4.6 14.4 17.3 12.1C428.2 457.8 496 362.9 496 252 496 113.3 383.5 8 244.8 8zM97.2 352.9c-1.3 1-1 3.3.7 5.2 1.6 1.6 3.9 2.3 5.2 1 1.3-1 1-3.3-.7-5.2-1.6-1.6-3.9-2.3-5.2-1zm-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9 1.6 1 3.6.7 4.3-.7.7-1.3-.3-2.9-2.3-3.9-2-.6-3.6-.3-4.3.7zm32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2 2.3 2.3 5.2 2.6 6.5 1 1.3-1.3.7-4.3-1.3-6.2-2.2-2.3-5.2-2.6-6.5-1zm-11.4-14.7c-1.6 1-1.6 3.6 0 5.9 1.6 2.3 4.3 3.3 5.6 2.3 1.6-1.3 1.6-3.9 0-6.2-1.4-2.3-4-3.3-5.6-2z"/></svg>
|
||
|
</div>
|
||
|
<div class="md-source__repository">
|
||
|
krahets/hello-algo
|
||
|
</div>
|
||
|
</a>
|
||
|
</div>
|
||
|
|
||
|
</nav>
|
||
|
|
||
|
</header>
|
||
|
|
||
|
<div class="md-container" data-md-component="container">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<main class="md-main" data-md-component="main">
|
||
|
<div class="md-main__inner md-grid">
|
||
|
|
||
|
|
||
|
|
||
|
<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
|
||
|
<div class="md-sidebar__scrollwrap">
|
||
|
<div class="md-sidebar__inner">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
|
||
|
<label class="md-nav__title" for="__drawer">
|
||
|
<a href="../.." title="Hello Algo" class="md-nav__button md-logo" aria-label="Hello Algo" data-md-component="logo">
|
||
|
|
||
|
<img src="../../assets/images/logo.svg" alt="logo">
|
||
|
|
||
|
</a>
|
||
|
Hello Algo
|
||
|
</label>
|
||
|
|
||
|
<div class="md-nav__source">
|
||
|
<a href="https://github.com/krahets/hello-algo" title="Go to repository" class="md-source" data-md-component="source">
|
||
|
<div class="md-source__icon md-icon">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 496 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M165.9 397.4c0 2-2.3 3.6-5.2 3.6-3.3.3-5.6-1.3-5.6-3.6 0-2 2.3-3.6 5.2-3.6 3-.3 5.6 1.3 5.6 3.6zm-31.1-4.5c-.7 2 1.3 4.3 4.3 4.9 2.6 1 5.6 0 6.2-2s-1.3-4.3-4.3-5.2c-2.6-.7-5.5.3-6.2 2.3zm44.2-1.7c-2.9.7-4.9 2.6-4.6 4.9.3 2 2.9 3.3 5.9 2.6 2.9-.7 4.9-2.6 4.6-4.6-.3-1.9-3-3.2-5.9-2.9zM244.8 8C106.1 8 0 113.3 0 252c0 110.9 69.8 205.8 169.5 239.2 12.8 2.3 17.3-5.6 17.3-12.1 0-6.2-.3-40.4-.3-61.4 0 0-70 15-84.7-29.8 0 0-11.4-29.1-27.8-36.6 0 0-22.9-15.7 1.6-15.4 0 0 24.9 2 38.6 25.8 21.9 38.6 58.6 27.5 72.9 20.9 2.3-16 8.8-27.1 16-33.7-55.9-6.2-112.3-14.3-112.3-110.5 0-27.5 7.6-41.3 23.6-58.9-2.6-6.5-11.1-33.3 2.6-67.9 20.9-6.5 69 27 69 27 20-5.6 41.5-8.5 62.8-8.5s42.8 2.9 62.8 8.5c0 0 48.1-33.6 69-27 13.7 34.7 5.2 61.4 2.6 67.9 16 17.7 25.8 31.5 25.8 58.9 0 96.5-58.9 104.2-114.8 110.5 9.2 7.9 17 22.9 17 46.4 0 33.7-.3 75.4-.3 83.6 0 6.5 4.6 14.4 17.3 12.1C428.2 457.8 496 362.9 496 252 496 113.3 383.5 8 244.8 8zM97.2 352.9c-1.3 1-1 3.3.7 5.2 1.6 1.6 3.9 2.3 5.2 1 1.3-1 1-3.3-.7-5.2-1.6-1.6-3.9-2.3-5.2-1zm-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9 1.6 1 3.6.7 4.3-.7.7-1.3-.3-2.9-2.3-3.9-2-.6-3.6-.3-4.3.7zm32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2 2.3 2.3 5.2 2.6 6.5 1 1.3-1.3.7-4.3-1.3-6.2-2.2-2.3-5.2-2.6-6.5-1zm-11.4-14.7c-1.6 1-1.6 3.6 0 5.9 1.6 2.3 4.3 3.3 5.6 2.3 1.6-1.3 1.6-3.9 0-6.2-1.4-2.3-4-3.3-5.6-2z"/></svg>
|
||
|
</div>
|
||
|
<div class="md-source__repository">
|
||
|
krahets/hello-algo
|
||
|
</div>
|
||
|
</a>
|
||
|
</div>
|
||
|
|
||
|
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" checked>
|
||
|
|
||
|
|
||
|
|
||
|
<div class="md-nav__link md-nav__container">
|
||
|
<a href="../" class="md-nav__link ">
|
||
|
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M21 4H3a2 2 0 0 0-2 2v13a2 2 0 0 0 2 2h18a2 2 0 0 0 2-2V6a2 2 0 0 0-2-2M3 19V6h8v13H3m18 0h-8V6h8v13m-7-9.5h6V11h-6V9.5m0 2.5h6v1.5h-6V12m0 2.5h6V16h-6v-1.5Z"/></svg>
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
Chapter 0. Preface
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
|
||
|
|
||
|
<label class="md-nav__link " for="__nav_1" id="__nav_1_label" tabindex="0">
|
||
|
<span class="md-nav__icon md-icon"></span>
|
||
|
</label>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="true">
|
||
|
<label class="md-nav__title" for="__nav_1">
|
||
|
<span class="md-nav__icon md-icon"></span>
|
||
|
Chapter 0. Preface
|
||
|
</label>
|
||
|
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item md-nav__item--active">
|
||
|
|
||
|
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<label class="md-nav__link md-nav__link--active" for="__toc">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
0.1 The Book
|
||
|
</span>
|
||
|
|
||
|
|
||
|
<span class="md-nav__icon md-icon"></span>
|
||
|
</label>
|
||
|
|
||
|
<a href="./" class="md-nav__link md-nav__link--active">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
0.1 The Book
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
|
||
|
|
||
|
|
||
|
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<label class="md-nav__title" for="__toc">
|
||
|
<span class="md-nav__icon md-icon"></span>
|
||
|
Table of contents
|
||
|
</label>
|
||
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="#011-target-readers" class="md-nav__link">
|
||
|
<span class="md-ellipsis">
|
||
|
0.1.1 Target Readers
|
||
|
</span>
|
||
|
</a>
|
||
|
|
||
|
</li>
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="#012-content-structure" class="md-nav__link">
|
||
|
<span class="md-ellipsis">
|
||
|
0.1.2 Content Structure
|
||
|
</span>
|
||
|
</a>
|
||
|
|
||
|
</li>
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="#013-acknowledgements" class="md-nav__link">
|
||
|
<span class="md-ellipsis">
|
||
|
0.1.3 Acknowledgements
|
||
|
</span>
|
||
|
</a>
|
||
|
|
||
|
</li>
|
||
|
|
||
|
</ul>
|
||
|
|
||
|
</nav>
|
||
|
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="../suggestions/" class="md-nav__link">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
0.2 How to Read
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="../summary/" class="md-nav__link">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
0.3 Summary
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
</ul>
|
||
|
</nav>
|
||
|
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item md-nav__item--nested">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
|
||
|
|
||
|
|
||
|
|
||
|
<div class="md-nav__link md-nav__container">
|
||
|
<a href="../../chapter_introduction/" class="md-nav__link ">
|
||
|
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 3H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2m0 16H5V5h14v14M6.2 7.7h5v1.5h-5V7.7m6.8 8.1h5v1.5h-5v-1.5m0-2.6h5v1.5h-5v-1.5M8 18h1.5v-2h2v-1.5h-2v-2H8v2H6V16h2v2m6.1-7.1 1.4-1.4 1.4 1.4 1.1-1-1.4-1.4L18 7.1 16.9 6l-1.4 1.4L14.1 6 13 7.1l1.4 1.4L13 9.9l1.1 1Z"/></svg>
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
Chapter 1. Introduction to Algorithms
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
|
||
|
|
||
|
<label class="md-nav__link " for="__nav_2" id="__nav_2_label" tabindex="0">
|
||
|
<span class="md-nav__icon md-icon"></span>
|
||
|
</label>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
|
||
|
<label class="md-nav__title" for="__nav_2">
|
||
|
<span class="md-nav__icon md-icon"></span>
|
||
|
Chapter 1. Introduction to Algorithms
|
||
|
</label>
|
||
|
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="../../chapter_introduction/algorithms_are_everywhere/" class="md-nav__link">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
1.1 Algorithms Are Everywhere
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="../../chapter_introduction/what_is_dsa/" class="md-nav__link">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
1.2 What is Algorithms
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="../../chapter_introduction/summary/" class="md-nav__link">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
1.3 Summary
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
</ul>
|
||
|
</nav>
|
||
|
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item md-nav__item--nested">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" >
|
||
|
|
||
|
|
||
|
|
||
|
<div class="md-nav__link md-nav__container">
|
||
|
<a href="../../chapter_computational_complexity/" class="md-nav__link ">
|
||
|
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M6 2h12v6l-4 4 4 4v6H6v-6l4-4-4-4V2m10 14.5-4-4-4 4V20h8v-3.5m-4-5 4-4V4H8v3.5l4 4M10 6h4v.75l-2 2-2-2V6Z"/></svg>
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
Chapter 2. Computational Complexity
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
|
||
|
|
||
|
<label class="md-nav__link " for="__nav_3" id="__nav_3_label" tabindex="0">
|
||
|
<span class="md-nav__icon md-icon"></span>
|
||
|
</label>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
|
||
|
<label class="md-nav__title" for="__nav_3">
|
||
|
<span class="md-nav__icon md-icon"></span>
|
||
|
Chapter 2. Computational Complexity
|
||
|
</label>
|
||
|
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="../../chapter_computational_complexity/performance_evaluation/" class="md-nav__link">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
2.1 Evaluating Algorithm Efficiency
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="../../chapter_computational_complexity/iteration_and_recursion/" class="md-nav__link">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
2.2 Iteration and Recursion
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="../../chapter_computational_complexity/time_complexity/" class="md-nav__link">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
2.3 Time Complexity
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="../../chapter_computational_complexity/space_complexity/" class="md-nav__link">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
2.4 Space Complexity
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="../../chapter_computational_complexity/summary/" class="md-nav__link">
|
||
|
|
||
|
|
||
|
<span class="md-ellipsis">
|
||
|
2.5 Summary
|
||
|
</span>
|
||
|
|
||
|
|
||
|
</a>
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
</ul>
|
||
|
</nav>
|
||
|
|
||
|
</li>
|
||
|
|
||
|
|
||
|
|
||
|
</ul>
|
||
|
</nav>
|
||
|
</div>
|
||
|
</div>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
|
||
|
<div class="md-sidebar__scrollwrap">
|
||
|
<div class="md-sidebar__inner">
|
||
|
|
||
|
|
||
|
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<label class="md-nav__title" for="__toc">
|
||
|
<span class="md-nav__icon md-icon"></span>
|
||
|
Table of contents
|
||
|
</label>
|
||
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="#011-target-readers" class="md-nav__link">
|
||
|
<span class="md-ellipsis">
|
||
|
0.1.1 Target Readers
|
||
|
</span>
|
||
|
</a>
|
||
|
|
||
|
</li>
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="#012-content-structure" class="md-nav__link">
|
||
|
<span class="md-ellipsis">
|
||
|
0.1.2 Content Structure
|
||
|
</span>
|
||
|
</a>
|
||
|
|
||
|
</li>
|
||
|
|
||
|
<li class="md-nav__item">
|
||
|
<a href="#013-acknowledgements" class="md-nav__link">
|
||
|
<span class="md-ellipsis">
|
||
|
0.1.3 Acknowledgements
|
||
|
</span>
|
||
|
</a>
|
||
|
|
||
|
</li>
|
||
|
|
||
|
</ul>
|
||
|
|
||
|
</nav>
|
||
|
</div>
|
||
|
</div>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
<div class="md-content" data-md-component="content">
|
||
|
<article class="md-content__inner md-typeset">
|
||
|
|
||
|
<!-- Tags -->
|
||
|
|
||
|
|
||
|
<!-- Actions -->
|
||
|
<!-- Actions -->
|
||
|
|
||
|
|
||
|
<!-- Edit button -->
|
||
|
|
||
|
<a
|
||
|
href="https://github.com/krahets/hello-algo/tree/main/docs-en/chapter_preface/about_the_book.md"
|
||
|
title="Edit this page"
|
||
|
class="md-content__button md-icon"
|
||
|
>
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M441 58.9 453.1 71c9.4 9.4 9.4 24.6 0 33.9L424 134.1 377.9 88 407 58.9c9.4-9.4 24.6-9.4 33.9 0zM209.8 256.2 344 121.9l46.1 46.1-134.3 134.2c-2.9 2.9-6.5 5-10.4 6.1L186.9 325l16.7-58.5c1.1-3.9 3.2-7.5 6.1-10.4zM373.1 25 175.8 222.2c-8.7 8.7-15 19.4-18.3 31.1l-28.6 100c-2.4 8.4-.1 17.4 6.1 23.6s15.2 8.5 23.6 6.1l100-28.6c11.8-3.4 22.5-9.7 31.1-18.3L487 138.9c28.1-28.1 28.1-73.7 0-101.8L474.9 25c-28.1-28.1-73.7-28.1-101.8 0zM88 64c-48.6 0-88 39.4-88 88v272c0 48.6 39.4 88 88 88h272c48.6 0 88-39.4 88-88V312c0-13.3-10.7-24-24-24s-24 10.7-24 24v112c0 22.1-17.9 40-40 40H88c-22.1 0-40-17.9-40-40V152c0-22.1 17.9-40 40-40h112c13.3 0 24-10.7 24-24s-10.7-24-24-24H88z"/></svg>
|
||
|
</a>
|
||
|
|
||
|
|
||
|
<!-- View button -->
|
||
|
|
||
|
|
||
|
|
||
|
<!-- Page content -->
|
||
|
<h1 id="01-the-book">0.1 The Book<a class="headerlink" href="#01-the-book" title="Permanent link">¶</a></h1>
|
||
|
<p>The aim of this project is to create an open source, free, novice-friendly introductory tutorial on data structures and algorithms.</p>
|
||
|
<ul>
|
||
|
<li>Animated graphs are used throughout the book to structure the knowledge of data structures and algorithms in a way that is clear and easy to understand with a smooth learning curve.</li>
|
||
|
<li>The source code of the algorithms can be run with a single click, supporting Java, C++, Python, Go, JS, TS, C#, Swift, Rust, Dart, Zig and other languages.</li>
|
||
|
<li>Readers are encouraged to help each other and make progress in the chapter discussion forums, and questions and comments can usually be answered within two days.</li>
|
||
|
</ul>
|
||
|
<h2 id="011-target-readers">0.1.1 Target Readers<a class="headerlink" href="#011-target-readers" title="Permanent link">¶</a></h2>
|
||
|
<p>If you are a beginner to algorithms, have never touched an algorithm before, or already have some experience brushing up on data structures and algorithms, and have a vague understanding of data structures and algorithms, repeatedly jumping sideways between what you can and can't do, then this book is just for you!</p>
|
||
|
<p>If you have already accumulated a certain amount of questions and are familiar with most of the question types, then this book can help you review and organize the algorithm knowledge system, and the repository source code can be used as a "brushing tool library" or "algorithm dictionary".</p>
|
||
|
<p>If you are an algorithm expert, we look forward to receiving your valuable suggestions or <a href="https://www.hello-algo.com/chapter_appendix/contribution/">participate in the creation together</a>.</p>
|
||
|
<div class="admonition success">
|
||
|
<p class="admonition-title">precondition</p>
|
||
|
<p>You will need to have at least a basic knowledge of programming in any language and be able to read and write simple code.</p>
|
||
|
</div>
|
||
|
<h2 id="012-content-structure">0.1.2 Content Structure<a class="headerlink" href="#012-content-structure" title="Permanent link">¶</a></h2>
|
||
|
<p>The main contents of the book are shown in the Figure 0-1 .</p>
|
||
|
<ul>
|
||
|
<li><strong>Complexity Analysis</strong>: dimensions and methods of evaluation of data structures and algorithms. Methods of deriving time complexity, space complexity, common types, examples, etc.</li>
|
||
|
<li><strong>Data Structures</strong>: basic data types, classification methods of data structures. Definition, advantages and disadvantages, common operations, common types, typical applications, implementation methods of data structures such as arrays, linked lists, stacks, queues, hash tables, trees, heaps, graphs, etc.</li>
|
||
|
<li><strong>Algorithms</strong>: definitions, advantages and disadvantages, efficiency, application scenarios, solution steps, sample topics of search, sorting algorithms, divide and conquer, backtracking algorithms, dynamic programming, greedy algorithms, and more.</li>
|
||
|
</ul>
|
||
|
<p><a class="glightbox" href="../about_the_book.assets/hello_algo_mindmap.jpg" data-type="image" data-width="100%" data-height="auto" data-desc-position="bottom"><img alt="Hello Algo content structure" class="animation-figure" src="../about_the_book.assets/hello_algo_mindmap.jpg" /></a></p>
|
||
|
<p align="center"> Figure 0-1 Hello Algo content structure </p>
|
||
|
|
||
|
<h2 id="013-acknowledgements">0.1.3 Acknowledgements<a class="headerlink" href="#013-acknowledgements" title="Permanent link">¶</a></h2>
|
||
|
<p>During the creation of this book, I received help from many people, including but not limited to:</p>
|
||
|
<ul>
|
||
|
<li>Thank you to my mentor at the company, Dr. Shih Lee, for encouraging me to "get moving" during one of our conversations, which strengthened my resolve to write this book.</li>
|
||
|
<li>I would like to thank my girlfriend Bubbles for being the first reader of this book, and for making many valuable suggestions from the perspective of an algorithm whiz, making this book more suitable for newbies.</li>
|
||
|
<li>Thanks to Tengbao, Qibao, and Feibao for coming up with a creative name for this book that evokes fond memories of writing the first line of code "Hello World!".</li>
|
||
|
<li>Thanks to Sutong for designing the beautiful cover and logo for this book and patiently revising it many times under my OCD.</li>
|
||
|
<li>Thanks to @squidfunk for writing layout suggestions and for developing the open source documentation theme <a href="https://github.com/squidfunk/mkdocs-material/tree/master">Material-for-MkDocs</a>.</li>
|
||
|
</ul>
|
||
|
<p>During the writing process, I read many textbooks and articles on data structures and algorithms. These works provide excellent models for this book and ensure the accuracy and quality of its contents. I would like to thank all my teachers and predecessors for their outstanding contributions!</p>
|
||
|
<p>This book promotes a hands-on approach to learning, and in this respect is heavily inspired by <a href="https://github.com/d2l-ai/d2l-zh">"Hands-On Learning for Depth"</a>. I highly recommend this excellent book to all readers.</p>
|
||
|
<p>A heartfelt thank you to my parents, it is your constant support and encouragement that gives me the opportunity to do this fun-filled thing.</p>
|
||
|
|
||
|
<!-- Source file information -->
|
||
|
|
||
|
|
||
|
<!-- Was this page helpful? -->
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<!-- Previous and next pages link -->
|
||
|
<nav
|
||
|
class="md-footer__inner md-grid"
|
||
|
aria-label="Footer"
|
||
|
|
||
|
>
|
||
|
|
||
|
<!-- Link to previous page -->
|
||
|
|
||
|
|
||
|
<a
|
||
|
href="../"
|
||
|
class="md-footer__link md-footer__link--prev"
|
||
|
aria-label="Previous: 第 0 章 &nbsp; Preface"
|
||
|
rel="prev"
|
||
|
>
|
||
|
<div class="md-footer__button md-icon">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
|
||
|
</div>
|
||
|
<div class="md-footer__title">
|
||
|
<span class="md-footer__direction">
|
||
|
Previous
|
||
|
</span>
|
||
|
<div class="md-ellipsis">
|
||
|
第 0 章 Preface
|
||
|
</div>
|
||
|
</div>
|
||
|
</a>
|
||
|
|
||
|
|
||
|
<!-- Link to next page -->
|
||
|
|
||
|
|
||
|
<a
|
||
|
href="../suggestions/"
|
||
|
class="md-footer__link md-footer__link--next"
|
||
|
aria-label="Next: 0.2 How to Read"
|
||
|
rel="next"
|
||
|
>
|
||
|
<div class="md-footer__title">
|
||
|
<span class="md-footer__direction">
|
||
|
Next
|
||
|
</span>
|
||
|
<div class="md-ellipsis">
|
||
|
0.2 How to Read
|
||
|
</div>
|
||
|
</div>
|
||
|
<div class="md-footer__button md-icon">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11H4Z"/></svg>
|
||
|
</div>
|
||
|
</a>
|
||
|
|
||
|
</nav>
|
||
|
|
||
|
<!-- Comment system -->
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5 align="center" id="__comments">Feel free to drop your insights, questions or suggestions</h5>
|
||
|
|
||
|
<!-- Insert generated snippet here -->
|
||
|
<script
|
||
|
src="https://giscus.app/client.js"
|
||
|
data-repo="krahets/hello-algo"
|
||
|
data-repo-id="R_kgDOIXtSqw"
|
||
|
data-category="Announcements"
|
||
|
data-category-id="DIC_kwDOIXtSq84CSZk_"
|
||
|
data-mapping="pathname"
|
||
|
data-strict="1"
|
||
|
data-reactions-enabled="1"
|
||
|
data-emit-metadata="0"
|
||
|
data-input-position="top"
|
||
|
data-theme="preferred_color_scheme"
|
||
|
data-lang="en"
|
||
|
crossorigin="anonymous"
|
||
|
async
|
||
|
>
|
||
|
</script>
|
||
|
<!-- Synchronize Giscus theme with palette -->
|
||
|
<script>
|
||
|
var giscus = document.querySelector("script[src*=giscus]")
|
||
|
|
||
|
/* Set palette on initial load */
|
||
|
var palette = __md_get("__palette")
|
||
|
if (palette && typeof palette.color === "object") {
|
||
|
var theme = palette.color.scheme === "slate" ? "dark_dimmed" : "light"
|
||
|
giscus.setAttribute("data-theme", theme)
|
||
|
}
|
||
|
|
||
|
/* Register event handlers after documented loaded */
|
||
|
document.addEventListener("DOMContentLoaded", function() {
|
||
|
var ref = document.querySelector("[data-md-component=palette]")
|
||
|
ref.addEventListener("change", function() {
|
||
|
var palette = __md_get("__palette")
|
||
|
if (palette && typeof palette.color === "object") {
|
||
|
var theme = palette.color.scheme === "slate" ? "dark_dimmed" : "light"
|
||
|
|
||
|
/* Instruct Giscus to change theme */
|
||
|
var frame = document.querySelector(".giscus-frame")
|
||
|
frame.contentWindow.postMessage(
|
||
|
{ giscus: { setConfig: { theme } } },
|
||
|
"https://giscus.app"
|
||
|
)
|
||
|
}
|
||
|
})
|
||
|
})
|
||
|
</script>
|
||
|
|
||
|
|
||
|
</article>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
<script>var tabs=__md_get("__tabs");if(Array.isArray(tabs))e:for(var set of document.querySelectorAll(".tabbed-set")){var tab,labels=set.querySelector(".tabbed-labels");for(tab of tabs)for(var label of labels.getElementsByTagName("label"))if(label.innerText.trim()===tab){var input=document.getElementById(label.htmlFor);input.checked=!0;continue e}}</script>
|
||
|
|
||
|
<script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script>
|
||
|
</div>
|
||
|
|
||
|
<button type="button" class="md-top md-icon" data-md-component="top" hidden>
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8v12Z"/></svg>
|
||
|
Back to top
|
||
|
</button>
|
||
|
|
||
|
</main>
|
||
|
|
||
|
<footer class="md-footer">
|
||
|
|
||
|
|
||
|
|
||
|
<nav class="md-footer__inner md-grid" aria-label="Footer" >
|
||
|
|
||
|
|
||
|
<a href="../" class="md-footer__link md-footer__link--prev" aria-label="Previous: 第 0 章 &nbsp; Preface">
|
||
|
<div class="md-footer__button md-icon">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
|
||
|
</div>
|
||
|
<div class="md-footer__title">
|
||
|
<span class="md-footer__direction">
|
||
|
Previous
|
||
|
</span>
|
||
|
<div class="md-ellipsis">
|
||
|
第 0 章 Preface
|
||
|
</div>
|
||
|
</div>
|
||
|
</a>
|
||
|
|
||
|
|
||
|
|
||
|
<a href="../suggestions/" class="md-footer__link md-footer__link--next" aria-label="Next: 0.2 How to Read">
|
||
|
<div class="md-footer__title">
|
||
|
<span class="md-footer__direction">
|
||
|
Next
|
||
|
</span>
|
||
|
<div class="md-ellipsis">
|
||
|
0.2 How to Read
|
||
|
</div>
|
||
|
</div>
|
||
|
<div class="md-footer__button md-icon">
|
||
|
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11H4Z"/></svg>
|
||
|
</div>
|
||
|
</a>
|
||
|
|
||
|
</nav>
|
||
|
|
||
|
|
||
|
<div class="md-footer-meta md-typeset">
|
||
|
<div class="md-footer-meta__inner md-grid">
|
||
|
<div class="md-copyright">
|
||
|
|
||
|
<div class="md-copyright__highlight">
|
||
|
Copyright © 2022 - 2023 Krahets
|
||
|
</div>
|
||
|
|
||
|
|
||
|
</div>
|
||
|
|
||
|
<div class="md-social">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<a href="https://github.com/krahets" target="_blank" rel="noopener" title="github.com" class="md-social__link">
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 496 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M165.9 397.4c0 2-2.3 3.6-5.2 3.6-3.3.3-5.6-1.3-5.6-3.6 0-2 2.3-3.6 5.2-3.6 3-.3 5.6 1.3 5.6 3.6zm-31.1-4.5c-.7 2 1.3 4.3 4.3 4.9 2.6 1 5.6 0 6.2-2s-1.3-4.3-4.3-5.2c-2.6-.7-5.5.3-6.2 2.3zm44.2-1.7c-2.9.7-4.9 2.6-4.6 4.9.3 2 2.9 3.3 5.9 2.6 2.9-.7 4.9-2.6 4.6-4.6-.3-1.9-3-3.2-5.9-2.9zM244.8 8C106.1 8 0 113.3 0 252c0 110.9 69.8 205.8 169.5 239.2 12.8 2.3 17.3-5.6 17.3-12.1 0-6.2-.3-40.4-.3-61.4 0 0-70 15-84.7-29.8 0 0-11.4-29.1-27.8-36.6 0 0-22.9-15.7 1.6-15.4 0 0 24.9 2 38.6 25.8 21.9 38.6 58.6 27.5 72.9 20.9 2.3-16 8.8-27.1 16-33.7-55.9-6.2-112.3-14.3-112.3-110.5 0-27.5 7.6-41.3 23.6-58.9-2.6-6.5-11.1-33.3 2.6-67.9 20.9-6.5 69 27 69 27 20-5.6 41.5-8.5 62.8-8.5s42.8 2.9 62.8 8.5c0 0 48.1-33.6 69-27 13.7 34.7 5.2 61.4 2.6 67.9 16 17.7 25.8 31.5 25.8 58.9 0 96.5-58.9 104.2-114.8 110.5 9.2 7.9 17 22.9 17 46.4 0 33.7-.3 75.4-.3 83.6 0 6.5 4.6 14.4 17.3 12.1C428.2 457.8 496 362.9 496 252 496 113.3 383.5 8 244.8 8zM97.2 352.9c-1.3 1-1 3.3.7 5.2 1.6 1.6 3.9 2.3 5.2 1 1.3-1 1-3.3-.7-5.2-1.6-1.6-3.9-2.3-5.2-1zm-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9 1.6 1 3.6.7 4.3-.7.7-1.3-.3-2.9-2.3-3.9-2-.6-3.6-.3-4.3.7zm32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2 2.3 2.3 5.2 2.6 6.5 1 1.3-1.3.7-4.3-1.3-6.2-2.2-2.3-5.2-2.6-6.5-1zm-11.4-14.7c-1.6 1-1.6 3.6 0 5.9 1.6 2.3 4.3 3.3 5.6 2.3 1.6-1.3 1.6-3.9 0-6.2-1.4-2.3-4-3.3-5.6-2z"/></svg>
|
||
|
</a>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<a href="https://twitter.com/krahets" target="_blank" rel="noopener" title="twitter.com" class="md-social__link">
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M459.37 151.716c.325 4.548.325 9.097.325 13.645 0 138.72-105.583 298.558-298.558 298.558-59.452 0-114.68-17.219-161.137-47.106 8.447.974 16.568 1.299 25.34 1.299 49.055 0 94.213-16.568 130.274-44.832-46.132-.975-84.792-31.188-98.112-72.772 6.498.974 12.995 1.624 19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z"/></svg>
|
||
|
</a>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<a href="https://leetcode.cn/u/jyd/" target="_blank" rel="noopener" title="leetcode.cn" class="md-social__link">
|
||
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M392.8 1.2c-17-4.9-34.7 5-39.6 22l-128 448c-4.9 17 5 34.7 22 39.6s34.7-5 39.6-22l128-448c4.9-17-5-34.7-22-39.6zm80.6 120.1c-12.5 12.5-12.5 32.8 0 45.3l89.3 89.4-89.4 89.4c-12.5 12.5-12.5 32.8 0 45.3s32.8 12.5 45.3 0l112-112c12.5-12.5 12.5-32.8 0-45.3l-112-112c-12.5-12.5-32.8-12.5-45.3 0zm-306.7 0c-12.5-12.5-32.8-12.5-45.3 0l-112 112c-12.5 12.5-12.5 32.8 0 45.3l112 112c12.5 12.5 32.8 12.5 45.3 0s12.5-32.8 0-45.3L77.3 256l89.4-89.4c12.5-12.5 12.5-32.8 0-45.3z"/></svg>
|
||
|
</a>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
</div>
|
||
|
</div>
|
||
|
</footer>
|
||
|
|
||
|
</div>
|
||
|
<div class="md-dialog" data-md-component="dialog">
|
||
|
<div class="md-dialog__inner md-typeset"></div>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
<script id="__config" type="application/json">{"base": "../..", "features": ["content.action.edit", "content.code.annotate", "content.code.copy", "content.tabs.link", "content.tooltips", "navigation.indexes", "navigation.top", "navigation.footer", "navigation.tracking", "search.highlight", "search.share", "search.suggest", "toc.follow"], "search": "../../assets/javascripts/workers/search.f886a092.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
|
||
|
|
||
|
|
||
|
<script src="../../assets/javascripts/bundle.d7c377c4.min.js"></script>
|
||
|
|
||
|
<script src="../../javascripts/mathjax.js"></script>
|
||
|
|
||
|
<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
|
||
|
|
||
|
<script src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
|
||
|
|
||
|
|
||
|
<script>document$.subscribe(() => {const lightbox = GLightbox({"touchNavigation": true, "loop": false, "zoomable": true, "draggable": false, "openEffect": "zoom", "closeEffect": "zoom", "slideEffect": "none"});})</script></body>
|
||
|
</html>
|