Yahoo

<style>/*<meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/>
<meta name='google-adsense-platform-domain' content='blogspot.com'/>

</head><body>*/</style>

<style>/*
<script type="text/javascript" src="https://www.blogger.com/static/v1/widgets/432983155-widgets.js"></script>
<script type='text/javascript'>
window['__wavt'] = 'AOuZoY7dmQG3_o_z4YZFqArwU3n-nf_uFQ:1772738054957';_WidgetManager._Init('//www.blogger.com/rearrange?blogID\x3d2867285051074112547','//www.codinginterview.net/search/label/Yahoo?max-results\x3d10','2867285051074112547');
_WidgetManager._SetDataContext([{'name': 'blog', 'data': {'blogId': '2867285051074112547', 'title': 'Prepare For Coding Interview', 'url': 'https://www.codinginterview.net/search/label/Yahoo?max-results\x3d10', 'canonicalUrl': 'https://www.codinginterview.net/search/label/Yahoo?max-results\x3d10', 'homepageUrl': 'https://www.codinginterview.net/', 'searchUrl': 'https://www.codinginterview.net/search', 'canonicalHomepageUrl': 'https://www.codinginterview.net/', 'blogspotFaviconUrl': 'https://www.codinginterview.net/favicon.ico', 'bloggerUrl': 'https://www.blogger.com', 'hasCustomDomain': true, 'httpsEnabled': true, 'enabledCommentProfileImages': true, 'gPlusViewType': 'FILTERED_POSTMOD', 'adultContent': false, 'analyticsAccountNumber': 'G-PD5EXTME17', 'analytics4': true, 'encoding': 'UTF-8', 'locale': 'en', 'localeUnderscoreDelimited': 'en', 'languageDirection': 'ltr', 'isPrivate': false, 'isMobile': false, 'isMobileRequest': false, 'mobileClass': '', 'isPrivateBlog': false, 'isDynamicViewsAvailable': true, 'feedLinks': '\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Prepare For Coding Interview - Atom\x22 href\x3d\x22https://www.codinginterview.net/feeds/posts/default\x22 /\x3e\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/rss+xml\x22 title\x3d\x22Prepare For Coding Interview - RSS\x22 href\x3d\x22https://www.codinginterview.net/feeds/posts/default?alt\x3drss\x22 /\x3e\n\x3clink rel\x3d\x22service.post\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Prepare For Coding Interview - Atom\x22 href\x3d\x22https://www.blogger.com/feeds/2867285051074112547/posts/default\x22 /\x3e\n', 'meTag': '', 'adsenseHostId': 'ca-host-pub-1556223355139109', 'adsenseHasAds': false, 'adsenseAutoAds': false, 'boqCommentIframeForm': true, 'loginRedirectParam': '', 'view': '', 'dynamicViewsCommentsSrc': '//www.blogblog.com/dynamicviews/4224c15c4e7c9321/js/comments.js', 'dynamicViewsScriptSrc': '//www.blogblog.com/dynamicviews/6beca970cf22277c', 'plusOneApiSrc': 'https://apis.google.com/js/platform.js', 'disableGComments': true, 'interstitialAccepted': false, 'sharing': {'platforms': [{'name': 'Get link', 'key': 'link', 'shareMessage': 'Get link', 'target': ''}, {'name': 'Facebook', 'key': 'facebook', 'shareMessage': 'Share to Facebook', 'target': 'facebook'}, {'name': 'BlogThis!', 'key': 'blogThis', 'shareMessage': 'BlogThis!', 'target': 'blog'}, {'name': 'X', 'key': 'twitter', 'shareMessage': 'Share to X', 'target': 'twitter'}, {'name': 'Pinterest', 'key': 'pinterest', 'shareMessage': 'Share to Pinterest', 'target': 'pinterest'}, {'name': 'Email', 'key': 'email', 'shareMessage': 'Email', 'target': 'email'}], 'disableGooglePlus': true, 'googlePlusShareButtonWidth': 0, 'googlePlusBootstrap': '\x3cscript type\x3d\x22text/javascript\x22\x3ewindow.___gcfg \x3d {\x27lang\x27: \x27en\x27};\x3c/script\x3e'}, 'hasCustomJumpLinkMessage': false, 'jumpLinkMessage': 'Read more', 'pageType': 'index', 'searchLabel': 'Yahoo', 'pageName': 'Yahoo', 'pageTitle': 'Prepare For Coding Interview: Yahoo'}}, {'name': 'features', 'data': {}}, {'name': 'messages', 'data': {'edit': 'Edit', 'linkCopiedToClipboard': 'Link copied to clipboard!', 'ok': 'Ok', 'postLink': 'Post Link'}}, {'name': 'template', 'data': {'name': 'custom', 'localizedName': 'Custom', 'isResponsive': true, 'isAlternateRendering': false, 'isCustom': true}}, {'name': 'view', 'data': {'classic': {'name': 'classic', 'url': '?view\x3dclassic'}, 'flipcard': {'name': 'flipcard', 'url': '?view\x3dflipcard'}, 'magazine': {'name': 'magazine', 'url': '?view\x3dmagazine'}, 'mosaic': {'name': 'mosaic', 'url': '?view\x3dmosaic'}, 'sidebar': {'name': 'sidebar', 'url': '?view\x3dsidebar'}, 'snapshot': {'name': 'snapshot', 'url': '?view\x3dsnapshot'}, 'timeslide': {'name': 'timeslide', 'url': '?view\x3dtimeslide'}, 'isMobile': false, 'title': 'Prepare For Coding Interview', 'description': 'Welcome to codinginterview.net, your ultimate resource for mastering coding interviews! Whether you\x27re a novice or an experienced programmer, our site provides comprehensive guides, expert tips, and practical coding challenges to help you excel. Enhance your problem-solving abilities, become proficient in algorithms and data structures, and gain the confidence to ace technical interviews. With our curated question bank, detailed explanations, and interactive coding exercises, you\x27ll be well-prep', 'url': 'https://www.codinginterview.net/search/label/Yahoo?max-results\x3d10', 'type': 'feed', 'isSingleItem': false, 'isMultipleItems': true, 'isError': false, 'isPage': false, 'isPost': false, 'isHomepage': false, 'isArchive': false, 'isSearch': true, 'isLabelSearch': true, 'search': {'label': 'Yahoo', 'resultsMessage': 'Showing posts with the label Yahoo', 'resultsMessageHtml': 'Showing posts with the label \x3cspan class\x3d\x27search-label\x27\x3eYahoo\x3c/span\x3e'}}}, {'name': 'widgets', 'data': [{'title': 'Social Links', 'type': 'HTML', 'sectionId': 'upload-image', 'id': 'HTML1'}, {'title': 'Logo', 'type': 'HTML', 'sectionId': 'header-main', 'id': 'HTML10'}, {'title': 'Icons, Dark, Search', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList10'}, {'title': 'Menu', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList11'}, {'title': 'Featured Post', 'type': 'FeaturedPost', 'sectionId': 'before-blog', 'id': 'FeaturedPost1', 'postId': '3616294414488708011'}, {'title': '', 'type': 'HTML', 'sectionId': 'before-post', 'id': 'HTML4'}, {'title': 'Blog Posts', 'type': 'Blog', 'sectionId': 'blog-post', 'id': 'Blog1', 'posts': [{'id': '4112803038051652302', 'title': 'Serialize and Deserialize Binary Tree', 'showInlineAds': false}], 'headerByline': {'regionName': 'header1', 'items': [{'name': 'share', 'label': ''}]}, 'footerBylines': [{'regionName': 'footer2', 'items': [{'name': 'labels', 'label': 'Labels:'}]}], 'allBylineItems': [{'name': 'share', 'label': ''}, {'name': 'labels', 'label': 'Labels:'}]}, {'title': '#You may also like', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML15'}, {'title': '', 'type': 'HTML', 'sectionId': 'after-blog', 'id': 'HTML5'}, {'title': 'DIFFICULTY', 'type': 'Label', 'sectionId': 'sidebar-static', 'id': 'Label1'}, {'title': 'COMPANY', 'type': 'Label', 'sectionId': 'sidebar-static', 'id': 'Label2'}, {'title': '', 'type': 'HTML', 'sectionId': 'sidebar-static', 'id': 'HTML3'}, {'title': 'About Us', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML21'}, {'title': 'Learn More', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList13'}, {'title': 'Languages', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList3'}, {'title': 'Learn', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList4'}, {'title': 'Roadmap', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList5'}, {'title': 'Course', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList6'}, {'title': 'Interview', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList7'}, {'title': 'Company', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList8'}, {'title': 'Newsletter', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML22'}, {'title': 'Follow Us', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList14'}, {'title': 'Copyright', 'type': 'HTML', 'sectionId': 'copyright', 'id': 'HTML23'}, {'title': 'SVG Icons', 'type': 'HTML', 'sectionId': 'jet-options', 'id': 'HTML24'}]}]);
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML1', 'upload-image', document.getElementById('HTML1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML10', 'header-main', document.getElementById('HTML10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList10', 'header-main', document.getElementById('LinkList10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList11', 'header-main', document.getElementById('LinkList11'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_FeaturedPostView', new _WidgetInfo('FeaturedPost1', 'before-blog', document.getElementById('FeaturedPost1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML4', 'before-post', document.getElementById('HTML4'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_BlogView', new _WidgetInfo('Blog1', 'blog-post', document.getElementById('Blog1'), {'cmtInteractionsEnabled': false, 'navMessage': 'Showing posts with label \x3cb\x3eYahoo\x3c/b\x3e. \x3ca href\x3d\x22https://www.codinginterview.net/\x22\x3eShow all posts\x3c/a\x3e', 'lightboxEnabled': true, 'lightboxModuleUrl': 'https://www.blogger.com/static/v1/jsbin/611711711-lbx.js', 'lightboxCssUrl': 'https://www.blogger.com/static/v1/v-css/828616780-lightbox_bundle.css'}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML15', 'ads-post', document.getElementById('HTML15'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML5', 'after-blog', document.getElementById('HTML5'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LabelView', new _WidgetInfo('Label1', 'sidebar-static', document.getElementById('Label1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LabelView', new _WidgetInfo('Label2', 'sidebar-static', document.getElementById('Label2'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML3', 'sidebar-static', document.getElementById('HTML3'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML21', 'footer-widget', document.getElementById('HTML21'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList13', 'footer-widget', document.getElementById('LinkList13'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList3', 'footer-widget', document.getElementById('LinkList3'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList4', 'footer-widget', document.getElementById('LinkList4'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList5', 'footer-widget', document.getElementById('LinkList5'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList6', 'footer-widget', document.getElementById('LinkList6'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList7', 'footer-widget', document.getElementById('LinkList7'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList8', 'footer-widget', document.getElementById('LinkList8'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML22', 'footer-widget', document.getElementById('HTML22'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList14', 'footer-widget', document.getElementById('LinkList14'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML23', 'copyright', document.getElementById('HTML23'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML24', 'jet-options', document.getElementById('HTML24'), {}, 'displayModeFull'));
</script>
</body>*/</style>

Serialize and Deserialize Binary Tree

DIFFICULTY

COMPANY

Data Structures