{"id":983,"date":"2015-12-10T11:35:20","date_gmt":"2015-12-10T11:35:20","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/?p=983"},"modified":"2015-12-10T11:47:16","modified_gmt":"2015-12-10T11:47:16","slug":"higher-gchqs-christmas-card-and-rle","status":"publish","type":"post","link":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2015\/12\/10\/higher-gchqs-christmas-card-and-rle\/","title":{"rendered":"Higher &#8211; GCHQ&#8217;s Christmas Card and RLE"},"content":{"rendered":"<p>So I was reading the BBC news website which has an article on <a href=\"http:\/\/www.bbc.co.uk\/news\/uk-35058761\" target=\"_blank\">GCHQ&#8217;s Christmas card<\/a>.<\/p>\n<p><a href=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2015\/12\/GCHQ.png\"><img decoding=\"async\" data-attachment-id=\"985\" 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150w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2015\/12\/GCHQ.png 660w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>This led me to wonder what is was as I hadn&#8217;t seen one before, it turns out it is a <a href=\"https:\/\/en.wikipedia.org\/wiki\/Nonogram\" target=\"_blank\">nonogram<\/a> or <a href=\"https:\/\/en.wikipedia.org\/wiki\/Picross_DS\" target=\"_blank\">picross<\/a>. Then it suddenly hit me, this is a form of <a href=\"https:\/\/en.wikipedia.org\/wiki\/Run-length_encoding\" target=\"_blank\">run length encoding<\/a>, that we will be covering later in the course. It&#8217;s just that in this case the encoding is only for black squares. Anyway I just wanted to share it now while it was topical.<\/p>\n<div class=\"jetpack-video-wrapper\">\n<div class=\"ttfmake-embed-wrapper aligncenter\" style=\"max-width: 960px;\"><iframe loading=\"lazy\" width=\"960\" height=\"720\" src=\"https:\/\/www.youtube.com\/embed\/ypdNscvym_E?feature=oembed\" frameborder=\"0\" allowfullscreen><\/iframe><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>So I was reading the BBC news website which has an article on GCHQ&#8217;s Christmas card. This led me to wonder what is was as I hadn&#8217;t seen one before, it turns out it is a nonogram or picross. Then it suddenly hit me, this is a form of run length encoding, that we will &hellip;<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17008,17007,319],"tags":[9741,125743],"class_list":["post-983","post","type-post","status-publish","format-standard","hentry","category-graphics-media-types","category-media-types","category-oldhigher","tag-rle","tag-run-length-encoding"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/983","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/comments?post=983"}],"version-history":[{"count":4,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/983\/revisions"}],"predecessor-version":[{"id":988,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/983\/revisions\/988"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/media?parent=983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/categories?post=983"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/tags?post=983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}