{"id":1267,"date":"2015-04-01T05:00:22","date_gmt":"2015-04-01T03:00:22","guid":{"rendered":"http:\/\/www.glc.us.es\/~jalonso\/exercitium\/?p=1267"},"modified":"2015-05-01T08:52:37","modified_gmt":"2015-05-01T06:52:37","slug":"ramas-a-las-que-pertenece-un-elemento","status":"publish","type":"post","link":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/ramas-a-las-que-pertenece-un-elemento\/","title":{"rendered":"Ramas a las que pertenece un elemento"},"content":{"rendered":"<p>Representamos los \u00e1rboles binarios con elementos en las hojas y en los nodos mediante el tipo de dato<\/p>\n<pre lang=\"text\">\n   data Arbol a = H a | N a (Arbol a) (Arbol a) deriving Show\n<\/pre>\n<p>Por ejemplo,<\/p>\n<pre lang=\"text\">\n   ej1 :: Arbol Int\n   ej1 = N 5 (N 2 (H 1) (H 2)) (N 3 (H 4) (H 2))\n<\/pre>\n<p>Definir la funci\u00f3n<\/p>\n<pre lang=\"text\">\n   ramasCon :: Eq a => Arbol a -> a -> [[a]]\n<\/pre>\n<p>tal que (ramasCon a x) es la lista de las ramas del \u00e1rbol a en las que aparece el elemento x. Por ejemplo,<\/p>\n<pre lang=\"text\">\n  ramasCon ej1 2 ==  [[5,2,1],[5,2,2],[5,3,2]]\n<\/pre>\n<h4>Soluciones<\/h4>\n<pre lang=\"haskell\">\ndata Arbol a = H a | N a (Arbol a) (Arbol a) deriving Show\n\nej1 :: Arbol Int\nej1 = N 5 (N 2 (H 1) (H 2)) (N 3 (H 4) (H 2))\n\n-- 1\u00aa definici\u00f3n\n-- =============\n\nramasCon :: Eq a => Arbol a -> a -> [[a]]\nramasCon a x = [ys | ys <- ramas a, x `elem` ys]\n\nramas :: Arbol a -> [[a]]\nramas (H x)     = [[x]]\nramas (N x i d) = [x:ys | ys <- ramas i ++ ramas d]\n\n-- 2\u00aa definici\u00f3n\n-- =============\n\nramasCon2 :: Eq a => Arbol a -> a -> [[a]]\nramasCon2 a x = filter (x `elem`) (ramas2 a)\n\nramas2 :: Arbol a -> [[a]]\nramas2 (H x)     = [[x]]\nramas2 (N x i d) = map (x:) (ramas2 i ++ ramas2 d)\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Representamos los \u00e1rboles binarios con elementos en las hojas y en los nodos mediante el tipo de dato data Arbol a = H a | N a (Arbol a) (Arbol a) deriving Show Por ejemplo, ej1 :: Arbol Int ej1 = N 5 (N 2 (H 1) (H 2)) (N 3 (H 4) (H 2))&#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":[5],"tags":[269,8,26,38,10,11,6],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts\/1267"}],"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=1267"}],"version-history":[{"count":3,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts\/1267\/revisions"}],"predecessor-version":[{"id":1309,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts\/1267\/revisions\/1309"}],"wp:attachment":[{"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/media?parent=1267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/categories?post=1267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/tags?post=1267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}