{"id":216,"date":"2013-06-17T21:37:54","date_gmt":"2013-06-17T13:37:54","guid":{"rendered":"http:\/\/coderbee.net\/?p=216"},"modified":"2013-06-17T16:40:12","modified_gmt":"2013-06-17T08:40:12","slug":"%e8%ae%a1%e7%ae%97%e6%95%b4%e6%95%b0%e7%9a%84%e4%ba%8c%e8%bf%9b%e5%88%b6%e8%a1%a8%e7%a4%ba%e9%87%8c1%e7%9a%84%e4%bd%8d%e6%95%b0","status":"publish","type":"post","link":"https:\/\/coderbee.net\/index.php\/algorithm\/20130617\/216","title":{"rendered":"\u8ba1\u7b97\u6574\u6570\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u91cc1\u7684\u4f4d\u6570"},"content":{"rendered":"<h2>\u9898<\/h2>\n<p>\u7f16\u7a0b\u8ba1\u7b97\u7ed9\u5b9a\u7684\u6574\u6570\u5728\u7528\u4e8c\u8fdb\u5236\u6765\u8868\u793a\u65f6\u542b\u6709\u591a\u5c11\u4e2a 1\u3002<\/p>\n<h3>\u5206\u6790<\/h3>\n<p>\u5047\u5b9a\u4ee5\u9ad8\u4f4d\u5728\u524d\u3001\u4f4e\u4f4d\u5728\u540e\u7684\u5f62\u5f0f\uff0c\u4e00\u4e2a\u6574\u6570\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u4e3a\uff1a<code>000110100<\/code>\uff1b\u5f53\u8be5\u6574\u6570\u51cf1\u65f6\uff0c\u7531\u4e8e\u4f4e\u4f4d\u662f0\uff0c\u6240\u4ee5\u4f1a\u4e00\u76f4\u5f80\u9ad8\u4f4d\u501f\u4f4d\uff0c\u76f4\u81f3\u78b0\u5230\u6700\u4f4e\u4f4d\u76841\uff08\u7ad6\u7ebf\u540e\u9762\u7684\u90a3\u4e2a1\uff09\uff1a<code>000110|100<\/code>\uff1b\u51cf1\u4e4b\u540e\u6574\u6570\u90a3\u4e2a\u6700\u4f4e\u4f4d1\u53d8\u4e3a0\uff0c\u4e4b\u540e\u7684\u4f4d\u90fd\u53d8\u4e3a1\uff1a<code>000110|011<\/code>\uff1b\u6b64\u65f6\u8fdb\u884c <code>i &amp; (i-1)<\/code> \u5c31\u4f1a\u8ba9\u7ad6\u7ebf\u540e\u9762\u7684\u90fd\u53d8\u4e3a0\uff1a<\/p>\n<pre><code>\n000110|100\u3000\u3000i\n000110|011\u3000\u3000i-1\n000110|000\u3000\u3000i&(i-1)\n\n1110\u3000\u3000-2\n1101\u3000\u3000-2 - 1\n1100\u3000\u3000-2 & (-2 - 1)\n<\/code><\/pre>\n<p>\u6240\u4ee5 <code>i = i &amp; (i-1)<\/code> \u90fd\u4f1a\u8ba9 i \u91cc\u7684\u4f4d\u4e3a 1 \u7684\u4e2a\u6570\u51cf\u4e00\u3002\u5bf9\u4e8e\u8d1f\u6570\uff0c\u540c\u6837\u5177\u6709\u8fd9\u6837\u7684\u6027\u8d28\u3002<br \/>\n<!--more--><\/p>\n<h3>\u5b9e\u73b0<\/h3>\n<pre><code language=\"go\">\nfunc CountBitsInInteger(integer int) int {\n     count := 0\n    for integer != 0 {\n        count++\n        integer = integer & (integer - 1)\n    }\n\n    return count\n}\n<\/pre>\n<p><\/code><\/p>\n<hr\/>\n<p>\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7: <strong>coderbee\u7b14\u8bb0<\/strong>\uff0c\u53ef\u4ee5\u66f4\u53ca\u65f6\u56de\u590d\u4f60\u7684\u8ba8\u8bba\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"258\" height=\"258\" src=\"https:\/\/coderbee.net\/wp-content\/uploads\/2019\/01\/coderbee-note.jpg\" class=\"alignnone size-full wp-image-1707\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9898 \u7f16\u7a0b\u8ba1\u7b97\u7ed9\u5b9a\u7684\u6574\u6570\u5728\u7528\u4e8c\u8fdb\u5236\u6765\u8868\u793a\u65f6\u542b\u6709\u591a\u5c11\u4e2a 1\u3002 \u5206\u6790 \u5047\u5b9a\u4ee5\u9ad8\u4f4d\u5728\u524d\u3001 &hellip; <a href=\"https:\/\/coderbee.net\/index.php\/algorithm\/20130617\/216\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[55],"_links":{"self":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/216"}],"collection":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/comments?post=216"}],"version-history":[{"count":6,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/216\/revisions"}],"predecessor-version":[{"id":219,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/216\/revisions\/219"}],"wp:attachment":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/media?parent=216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/categories?post=216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/tags?post=216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}