{"id":12612,"date":"2016-12-11T09:00:34","date_gmt":"2016-12-11T00:00:34","guid":{"rendered":"http:\/\/www.techscore.com\/blog\/?p=12612"},"modified":"2018-11-14T16:33:44","modified_gmt":"2018-11-14T07:33:44","slug":"%e3%80%8c%e8%aa%95%e7%94%9f%e6%97%a5%e3%81%ae%e3%83%91%e3%83%a9%e3%83%89%e3%83%83%e3%82%af%e3%82%b9%e3%80%8d%e3%82%92%e6%a4%9c%e8%a8%bc%e3%81%97%e3%81%a6%e3%81%bf%e3%81%9f%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.techscore.com\/blog\/2016\/12\/11\/%e3%80%8c%e8%aa%95%e7%94%9f%e6%97%a5%e3%81%ae%e3%83%91%e3%83%a9%e3%83%89%e3%83%83%e3%82%af%e3%82%b9%e3%80%8d%e3%82%92%e6%a4%9c%e8%a8%bc%e3%81%97%e3%81%a6%e3%81%bf%e3%81%9f%e3%80%82\/","title":{"rendered":"\u300c\u8a95\u751f\u65e5\u306e\u30d1\u30e9\u30c9\u30c3\u30af\u30b9\u300d\u3092\u691c\u8a3c\u3057\u3066\u307f\u305f\u3002"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u938c\u7530\u3067\u3059\u3002<br \/>\n\u3053\u308c\u306f\u3001<a href=\"http:\/\/www.techscore.com\/blog\/2016\/11\/30\/techscore-advent-calendar-2016\/\">TECHSCORE Advent Calendar 2016<\/a> \u306e11\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002<\/p>\n<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p>Advent Calendar\u3068\u3044\u3048\u3070\u3001\u30af\u30ea\u30b9\u30de\u30b9\u3002<br \/>\n\u30af\u30ea\u30b9\u30de\u30b9\u3068\u3044\u3048\u3070\u3001<span style=\"color: #ff0000;\">\u30a4\u30a8\u30b9\u30fb\u30ad\u30ea\u30b9\u30c8\u306e\u8a95\u751f\u65e5<\/span>\uff01(\u00b4\u2200`pq)\uff8a\uff9f\uff81\uff8a\uff9f\uff81<\/p>\n<p>\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u4eca\u56de\u306e\u30c6\u30fc\u30de\u306f\u300c\u8a95\u751f\u65e5\u306e\u30d1\u30e9\u30c9\u30c3\u30af\u30b9\u300d\u3067\u3059\u3002<br \/>\n\u3061\u306a\u307f\u306b\u300c\u8a95\u751f\u65e5\u306e\u30d1\u30e9\u30c9\u30c3\u30af\u30b9\u300d\u306f\u885d\u7a81\u653b\u6483\uff08\u8a95\u751f\u65e5\u653b\u6483\uff09\u3068\u3044\u3046\u653b\u6483\u624b\u6cd5\u306e\u8003\u3048\u65b9\u306e\u3082\u3068\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<br \/>\n\u885d\u7a81\u653b\u6483\u3068\u306f\u3001\u3042\u308b\u95a2\u6570 f \u306b\u5bfe\u3057\u3066\u306e f(a) \uff1d f(b) \u3068\u306a\u308b\u3088\u3046\u306a\u3001\u540c\u3058\u7d50\u679c\u3092\u8fd4\u3059 a \u3068 b \u3092\u6c42\u3081\u308b\u3082\u306e\u3067\u3059\u3002<br \/>\n\u7d50\u679c\u7684\u306b\u306f\u7dcf\u5f53\u305f\u308a\u653b\u6483\u3092\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3059\u304c\u3001\u3069\u306e\u304f\u3089\u3044\u306e\u653b\u6483\u56de\u6570\u3067\u6c42\u3081\u308b\u7d50\u679c\u304c\u5f97\u3089\u308c\u308b\u306e\u304b\u3002\u3092\u8003\u3048\u308b\u3068\u304d\u306b\u975e\u5e38\u306b\u6709\u52b9\u306a\u624b\u6cd5\u3067\u3059\u3002<br \/>\n\u3053\u306e\u300c\u8a95\u751f\u65e5\u306e\u30d1\u30e9\u30c9\u30c3\u30af\u30b9\u300d\u304c\u672c\u5f53\u306b\u6b63\u3057\u3044\u306e\u304b\uff1f\u3068\u3044\u3046\u691c\u8a3c\u306e\u7d50\u679c\u3092\u8a18\u4e8b\u306b\u3057\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<h2>\u8a95\u751f\u65e5\u306e\u30d1\u30e9\u30c9\u30c3\u30af\u30b9\u3068\u306f\uff1f<\/h2>\n<p>\u7c21\u5358\u306b\u8a95\u751f\u65e5\u306e\u30d1\u30e9\u30c9\u30c3\u30af\u30b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p>\u8a95\u751f\u65e5\u306e\u30d1\u30e9\u30c9\u30c3\u30af\u30b9\u3068\u306f\u300c\u3007\u4eba\u306e\u4eba\u304c\u96c6\u307e\u308c\u3070\u3001\u8a95\u751f\u65e5\u304c\u540c\u3058\u4eba\u304c\u5b58\u5728\u3059\u308b\u78ba\u7387\u304c50%\u3092\u8d85\u3048\u308b\u304b\u300d\u3068\u3044\u3046\u554f\u984c\u306b\u5bfe\u3057\u3066\u3001\u3053\u306e\u3007\u304c\u4f55\u4eba\u304b\u3092\u8003\u3048\u308b\u3082\u306e\u3067\u3059\u3002<br \/>\n\u76f4\u611f\u7684\u306b\u8003\u3048\u308b\u3068\u30011\u5e74\u306f365\u65e5\u306a\u306e\u3067(\u3046\u308b\u3046\u5e74\u306e\u6642\u306f366\u65e5)\u3001180\u4eba\u304f\u3089\u3044...\u5c11\u306a\u304f\u3068\u308250 ~ 60\u4eba\u304f\u3089\u3044\u306f\u5fc5\u8981\u305d\u3046\u306a\u6c17\u304c\u3057\u307e\u3059\u3088\u306d\u3002<\/p>\n<p>\u3067\u3082\u5b9f\u969b\u306f\u3001<strong>\u301023\u4eba\u3011\u96c6\u307e\u308b\u3060\u3051<\/strong>\u3067\u3044\u3044\u3093\u3067\u3059\u3002<br \/>\n<a href=\"https:\/\/www.techscore.com\/blog\/wp\/wp-content\/uploads\/2016\/12\/2aa8015fe7f85d0af01fe986a7792eb9.jpg\" rel=\"facebox\" rel=\"attachment wp-att-12673\"><img loading=\"lazy\" class=\"alignnone size-medium wp-image-12673\" src=\"https:\/\/www.techscore.com\/blog\/wp\/wp-content\/uploads\/2016\/12\/2aa8015fe7f85d0af01fe986a7792eb9-300x189.jpg\" alt=\"%e7%84%a1%e9%a1%8c%ef%bc%92\" width=\"300\" height=\"189\" srcset=\"https:\/\/www.techscore.com\/blog\/wp\/wp-content\/uploads\/2016\/12\/2aa8015fe7f85d0af01fe986a7792eb9-300x189.jpg 300w, https:\/\/www.techscore.com\/blog\/wp\/wp-content\/uploads\/2016\/12\/2aa8015fe7f85d0af01fe986a7792eb9.jpg 480w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><br \/>\n\u672c\u5f53\u306b\uff1f<\/p>\n<h2>\u3055\u3063\u305d\u304f\u691c\u8a3c<\/h2>\n<p>\u3053\u3053\u304b\u3089Ruby\u3092\u4f7f\u3063\u3066\u3001\u4ee5\u4e0b\u306eA. ~ E.\u306e\u3088\u3046\u306a\u904e\u7a0b\u3067\u691c\u8a3c\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<h3>A.1\u4eba\u5206\u306e\u8a95\u751f\u65e5\u76f8\u5f53\u306e\u6570\u5b57\u3092\u3001\u4e71\u6570\u3092\"rand\"\u3092\u4f7f\u3063\u3066\u751f\u6210\u3059\u308b\u3002<\/h3>\n<pre class=\"lang:ruby decode:true \">&gt; puts rand(365)\r\n86<\/pre>\n<h3><\/h3>\n<h3>B.A.\u3092\"times\"\u306723\u56de\u7e70\u308a\u8fd4\u3057\u3001\"map\"\u3067\u914d\u5217\u3068\u3057\u3066\u307e\u3068\u3081\u3066\u300123\u4eba\u5206\u306e\u8a95\u751f\u65e5\u3092\u751f\u6210\u3059\u308b\u3002<\/h3>\n<pre class=\"lang:ruby decode:true \">&gt; puts 23.times.map{rand(365)}\r\n100\r\n207\r\n83\r\n\u22ee\r\n&gt; puts 23.times.map{rand(365)}.size # \u751f\u6210\u3057\u305f\u4e71\u6570\u306e\u6570\u3092\u30ab\u30a6\u30f3\u30c8\r\n23\r\n<\/pre>\n<h3><\/h3>\n<h3>C.23\u4eba\u306e\u4e2d\u306b\u8a95\u751f\u65e5\u304c\u540c\u3058\u4eba\u304c\u3044\u308b\u304b\u3092\u691c\u51fa\u3059\u308b\u305f\u3081\u306b\u3001\"uniq\"\u3067\u91cd\u8907\u3092\u7701\u304f\u3002<\/h3>\n<pre class=\"lang:ruby decode:true \">&gt; puts 23.times.map{rand(365)}.uniq\r\n139\r\n88\r\n243\r\n\u22ee\r\n&gt; puts 23.times.map{rand(365)}.uniq.size \r\n22\u3000# 22\u3060\u3063\u305f\u3089\u8a95\u751f\u65e5\u304c\u540c\u3058\u4eba\u304c\u3044\u308b\r\n<\/pre>\n<h3><\/h3>\n<h3>D.\u91cd\u8907\u3092\u7701\u3044\u305f\u7d50\u679c\u304c23\u3088\u308a\u5c11\u306a\u3051\u308c\u3070\u300123\u4eba\u306e\u4e2d\u306b\u8a95\u751f\u65e5\u304c\u540c\u3058\u4eba\u304c\u3044\u308b\u3053\u3068\u306b\u306a\u308a\u3001true\u304c\u51fa\u529b\u3055\u308c\u308b\u3002<\/h3>\n<pre class=\"lang:ruby decode:true\">&gt; puts 23.times.map{rand(365)}.uniq.size &lt; 23\r\ntrue # \u8a95\u751f\u65e5\u304c\u540c\u3058\u4eba\u304c\u3044\u308b \r\n&gt; puts 23.times.map{rand(365)}.uniq.size &lt; 23\r\nfalse # \u8a95\u751f\u65e5\u304c\u540c\u3058\u4eba\u304c\u3044\u306a\u3044\r\n<\/pre>\n<h3><\/h3>\n<h3>E.A. ~ D.\u306e\u904e\u7a0b\u309210,000\u56de\u307b\u3069\u30eb\u30fc\u30d7\u3055\u305b\u3001\"select\"\u3067true\u3092\u51fa\u529b\u3057\u305f\u6570\u3092\u3068\u308b\u3002<br \/>\n5,000\u56de\u4ee5\u4e0a\u91cd\u8907\u3057\u3066\u3044\u308c\u3070\u300150%\u306e\u78ba\u7387\u3067\u8a95\u751f\u65e5\u304c\u91cd\u8907\u3057\u305f\u4eba\u304c\u3044\u308b\u3053\u3068\u306b\u306a\u308b\u3002<\/h3>\n<pre class=\"lang:ruby decode:true\">&gt; puts 10000.times.select{ 23.times.map{rand(365)}.uniq.size &lt; 23 }.size\r\n5150\r\n<\/pre>\n<h2>\u691c\u8a3c\u7d50\u679c<\/h2>\n<p>22\u4eba\u306e\u3068\u304d\u306823\u4eba\u306e\u3068\u304d\u3067\u30015\u56de\u305a\u3064\u30eb\u30fc\u30d7\u3055\u305b\u3066\u691c\u8a3c\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li>22\u4eba\u306e\u3068\u304d<\/li>\n<\/ul>\n<pre class=\"lang:ruby decode:true \">&gt; 5.times{puts 10000.times.select{ 22.times.map{rand(365)}.uniq.size &lt; 22 }.size}\r\n4810\r\n4743\r\n4721\r\n4706\r\n4717\r\n<\/pre>\n<p>22\u4eba\u3060\u30685,000\u56de\u8fd1\u304f\u306b\u306f\u306a\u308a\u307e\u3059\u304c\u3001\u5c11\u3057\u5c4a\u304b\u306a\u3044\u3067\u3059\u306d...\u3002<br \/>\n\u3060\u3044\u305f\u3044\u300147%\u304f\u3089\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>23\u4eba\u306e\u3068\u304d<\/li>\n<\/ul>\n<pre class=\"lang:ruby decode:true\">&gt; 5.times{puts 10000.times.select{ 23.times.map{rand(365)}.uniq.size &lt; 23 }.size}\r\n5023\r\n5149\r\n5062\r\n5081\r\n5143\r\n<\/pre>\n<p>23\u4eba\u306b\u3059\u308b\u30685,000\u56de\u3092\u8d85\u3048\u3066\u304d\u307e\u3057\u305f\uff01<br \/>\n\u305f\u3057\u304b\u306b\u25cb\u4eba\u306e\u306a\u304b\u306b\u8a95\u751f\u65e5\u304c\u540c\u3058\u4eba\u304c\u3044\u308b\u78ba\u7387\u306f\u300123\u4eba\u3092\u5883\u306b\u3057\u306650%\u4ee5\u4e0a\u306b\u306a\u308b\u3088\u3046\u3067\u3059\uff01<\/p>\n<h2>\u4f59\u8ac7...<\/h2>\n<p>\u3061\u306a\u307f\u306b70\u4eba\u4ee5\u4e0a\u3044\u308c\u307099.9%\u306e\u78ba\u7387\u3067\u8a95\u751f\u65e5\u304c\u885d\u7a81\u3059\u308b\u30da\u30a2\u304c\u3044\u308b\u305d\u3046\u3067\u3059\uff01<\/p>\n<p>\u6c17\u306b\u306a\u3063\u305f\u65b9\u306f\u3001\u305c\u3072\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u938c\u7530\u3067\u3059\u3002<br \/>\n\u3053\u308c\u306f\u3001TECHSCORE Advent Calendar 2016 \u306e11\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002<br \/>\n\u306f\u3058\u3081\u306b<br \/>\nAdvent Calendar\u3068\u3044\u3048\u3070\u3001\u30af\u30ea\u30b9\u30de\u30b9\u3002<br \/><a href=\"https:\/\/www.techscore.com\/blog\/2016\/12\/11\/%e3%80%8c%e8%aa%95%e7%94%9f%e6%97%a5%e3%81%ae%e3%83%91%e3%83%a9%e3%83%89%e3%83%83%e3%82%af%e3%82%b9%e3%80%8d%e3%82%92%e6%a4%9c%e8%a8%bc%e3%81%97%e3%81%a6%e3%81%bf%e3%81%9f%e3%80%82\/\">\u7d9a\u304d\u3092\u8aad\u3080...<\/a><\/p>\n","protected":false},"author":63,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[239],"tags":[141],"_links":{"self":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/12612"}],"collection":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/users\/63"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/comments?post=12612"}],"version-history":[{"count":57,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/12612\/revisions"}],"predecessor-version":[{"id":17277,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/12612\/revisions\/17277"}],"wp:attachment":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/media?parent=12612"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/categories?post=12612"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/tags?post=12612"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}