{"id":2184,"date":"2011-09-06T12:52:07","date_gmt":"2011-09-06T09:52:07","guid":{"rendered":"http:\/\/daimon.me\/blog\/?p=2184"},"modified":"2011-09-06T12:52:07","modified_gmt":"2011-09-06T09:52:07","slug":"o-problema-de-matematica","status":"publish","type":"post","link":"http:\/\/daimon.me\/blog\/2011\/09\/o-problema-de-matematica\/","title":{"rendered":"O problem\u0103 de matematic\u0103"},"content":{"rendered":"<div class=\"entry\">\n<p style=\"text-align: justify;\">Am descoperit o \u00eentrebare interesant\u0103 pe Softpedia:<\/p>\n<blockquote><p><a href=\"http:\/\/forum.softpedia.com\/index.php?showtopic=801321\" target=\"_blank\">S\u0103 se g\u0103seasc\u0103 num\u0103rul total de aranj\u0103ri invalide a pieselor pe tabla de \u0219ah<\/a><\/p><\/blockquote>\n<p style=\"text-align: justify;\">Ce \u00een\u0163elegem prin &#8220;aranjare invalid\u0103&#8221;? O stare &#8211; o pozi\u0163ionare a pieselor de \u015fah care nu ar fi putut rezulta dintr-un joc care s\u0103 fi urmat regulile. C\u00e2teva exemple care vin \u00een minte sunt:<\/p>\n<ul>\n<li>cei doi regi pozi\u0163iona\u0163i unul l\u00e2ng\u0103 altul<\/li>\n<li>o tur\u0103, regin\u0103 sau un nebun \u00een fa\u0163a pionilor proprii &#8211; f\u0103r\u0103 ca vreun pion s\u0103 fi fost mutat<\/li>\n<li>existen\u0163a a doi nebuni de aceea\u015fi culoare <em>(ignor\u00e2nd posibilitatea de promovare a pionilor pentru simplitate)<\/em><\/li>\n<li>existen\u0163a a mai mult de 2 regine sau 4 ture <em>(ignor\u00e2nd posibilitatea de promovare a pionilor, din nou)<\/em><\/li>\n<li>\u00eentreaga linie de pioni negri plasat\u0103 pe un r\u00e2nd mai jos dec\u00e2t \u00eentreaga linie de pioni albi <em>(negri pe C1-C8 \u00een timp ce to\u0163i cei albi sunt pe D1-D8)<\/em><\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Nu se cere generarea tuturor situa\u0163iilor concrete, ci doar o estimare a complexit\u0103\u0163ii unui asemenea algoritm. <a href=\"http:\/\/en.wikipedia.org\/wiki\/Ballpark_estimate\" target=\"_blank\">Ballpark estimate<\/a>, cel mai probabil. Eu unul recunosc c\u0103 nu-mi dau seama cum s-ar putea face a\u015fa ceva, da&#8217; poate mai e cineva plictisit c\u0103ruia i se pare interesant\u0103 problema :)<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Am descoperit o \u00eentrebare interesant\u0103 pe Softpedia: S\u0103 se g\u0103seasc\u0103 num\u0103rul total de aranj\u0103ri invalide a pieselor pe tabla de \u0219ah Ce \u00een\u0163elegem prin &#8220;aranjare invalid\u0103&#8221;? O stare &#8211; o pozi\u0163ionare a pieselor de \u015fah care nu ar fi putut rezulta dintr-un joc care s\u0103 fi urmat regulile. C\u00e2teva exemple care vin \u00een minte sunt: &#8230;<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-2184","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-fara","7":"anons"},"_links":{"self":[{"href":"http:\/\/daimon.me\/blog\/wp-json\/wp\/v2\/posts\/2184","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/daimon.me\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/daimon.me\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/daimon.me\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/daimon.me\/blog\/wp-json\/wp\/v2\/comments?post=2184"}],"version-history":[{"count":1,"href":"http:\/\/daimon.me\/blog\/wp-json\/wp\/v2\/posts\/2184\/revisions"}],"predecessor-version":[{"id":2186,"href":"http:\/\/daimon.me\/blog\/wp-json\/wp\/v2\/posts\/2184\/revisions\/2186"}],"wp:attachment":[{"href":"http:\/\/daimon.me\/blog\/wp-json\/wp\/v2\/media?parent=2184"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/daimon.me\/blog\/wp-json\/wp\/v2\/categories?post=2184"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/daimon.me\/blog\/wp-json\/wp\/v2\/tags?post=2184"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}