{"id":2752,"date":"2016-12-30T06:00:40","date_gmt":"2016-12-30T04:00:40","guid":{"rendered":"http:\/\/www.glc.us.es\/~jalonso\/exercitium\/?p=2752"},"modified":"2017-01-07T07:38:20","modified_gmt":"2017-01-07T05:38:20","slug":"segmentos-comunes-maximales","status":"publish","type":"post","link":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/segmentos-comunes-maximales\/","title":{"rendered":"Segmentos comunes maximales"},"content":{"rendered":"<p>Los segmentos de \u00ababcd\u00bb son<\/p>\n<pre lang=\"text\">\n   [\"\",\"a\",\"ab\",\"abc\",\"abcd\",\"b\",\"bc\",\"bcd\",\"c\",\"cd\",\"d\"]\n<\/pre>\n<p>Los segmentos comunes de \u00ababcd\u00bb y \u00abaxbce\u00bb son<\/p>\n<pre lang=\"text\">\n   [\"\",\"a\",\"b\",\"bc\",\"c\"]\n<\/pre>\n<p>Los segmentos comunes maximales (es decir, no contenidos en otros segmentos) de \u00ababcd\u00bb y \u00abaxbce\u00bb son<\/p>\n<pre lang=\"text\">\n   [\"a\",\"bc\"]\n<\/pre>\n<p>Definir la funci\u00f3n<\/p>\n<pre lang=\"text\">\n   segmentosComunesMaximales :: Eq a => [a] -> [a] -> [[a]]\n<\/pre>\n<p>tal que (segmentosComunesMaximales xs ys) es la lista de los segmentos comunes maximales de xs e ys. Por ejemplo,<\/p>\n<pre lang=\"text\">\n   segmentosComunesMaximales \"abcd\" \"axbce\"  ==  [\"a\",\"bc\"]\n   segmentosComunesMaximales [8,8] [8]       ==  [[8]]\n<\/pre>\n<h4>Soluciones<\/h4>\n<pre lang=\"haskell\">\nimport Data.List (inits, tails, isInfixOf)\n\nsegmentosComunesMaximales :: Eq a => [a] -> [a] -> [[a]]\nsegmentosComunesMaximales xs ys =\n  nub [zs | zs <- zss\n          , null [us | us <- zss, zs `isInfixOf` us, us \/= zs]]\n  where zss = segmentosComunes xs ys\n\nsegmentosComunes :: Eq a => [a] -> [a] -> [[a]]\nsegmentosComunes xs ys =\n  [zs | zs <- segmentos xs\n      , zs `isInfixOf` ys]\n\n-- (segmentos xs) es la lista de los segmentos de xs. Por ejemplo,\n--    segmentos \"abc\"  ==  [\"\",\"a\",\"ab\",\"abc\",\"b\",\"bc\",\"c\"]\nsegmentos :: [a] -> [[a]]\nsegmentos xs =\n  [] : concatMap (tail . inits) (init (tails xs))\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Los segmentos de \u00ababcd\u00bb son [\u00ab\u00bb,\u00bba\u00bb,\u00bbab\u00bb,\u00bbabc\u00bb,\u00bbabcd\u00bb,\u00bbb\u00bb,\u00bbbc\u00bb,\u00bbbcd\u00bb,\u00bbc\u00bb,\u00bbcd\u00bb,\u00bbd\u00bb] Los segmentos comunes de \u00ababcd\u00bb y \u00abaxbce\u00bb son [\u00ab\u00bb,\u00bba\u00bb,\u00bbb\u00bb,\u00bbbc\u00bb,\u00bbc\u00bb] Los segmentos comunes maximales (es decir, no contenidos en otros segmentos) de \u00ababcd\u00bb y \u00abaxbce\u00bb son [\u00aba\u00bb,\u00bbbc\u00bb] Definir la funci\u00f3n segmentosComunesMaximales :: Eq a => [a] -> [a] -> [[a]] tal que (segmentosComunesMaximales xs ys) es la lista de los&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"footnotes":"","_jetpack_memberships_contains_paid_content":false},"categories":[4],"tags":[8,58,285,74,316,24,141,11,45,75],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts\/2752"}],"collection":[{"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/comments?post=2752"}],"version-history":[{"count":5,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts\/2752\/revisions"}],"predecessor-version":[{"id":2793,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts\/2752\/revisions\/2793"}],"wp:attachment":[{"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/media?parent=2752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/categories?post=2752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/tags?post=2752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}