{"id":705,"date":"2020-06-23T16:23:44","date_gmt":"2020-06-23T08:23:44","guid":{"rendered":"http:\/\/www.guanhaobo.cn\/?p=705"},"modified":"2020-06-23T16:23:44","modified_gmt":"2020-06-23T08:23:44","slug":"jz12-%e6%95%b0%e5%80%bc%e7%9a%84%e6%95%b4%e6%95%b0%e6%ac%a1%e6%96%b9","status":"publish","type":"post","link":"https:\/\/www.guanhaobo.cn\/?p=705","title":{"rendered":"JZ12 \u2014 \u6570\u503c\u7684\u6574\u6570\u6b21\u65b9"},"content":{"rendered":"<h3>\u9898\u76ee\u63cf\u8ff0<\/h3>\n<p>\u7ed9\u5b9a\u4e00\u4e2adouble\u7c7b\u578b\u7684\u6d6e\u70b9\u6570base\u548cint\u7c7b\u578b\u7684\u6574\u6570exponent\u3002\u6c42base\u7684exponent\u6b21\u65b9\u3002<br \/>\n\u4fdd\u8bc1base\u548cexponent\u4e0d\u540c\u65f6\u4e3a0<\/p>\n<h3>\u9898\u76ee\u5206\u6790<\/h3>\n<p>\u5feb\u901f\u5e42\uff0c\u4e0d\u518d\u8d58\u8ff0\u3002<br \/>\n\u53c2\u8003\uff1a<a href=\"http:\/\/www.guanhaobo.cn\/?p=688\">http:\/\/www.guanhaobo.cn\/?p=688<\/a><br \/>\n\u9700\u8981\u6ce8\u610f\uff0c\u5982\u679c<code>exponent<\/code>\u4e3a\u8d1f\u6570\uff0c\u9700\u8981\u5c06\u5b83\u8f6c\u4e3a\u6b63\u6570\uff0c\u6700\u540e\u7ed3\u679c\u662f<code>1 \/ ans<\/code><\/p>\n<h3>C++<\/h3>\n<pre><code class=\"language-cpp line-numbers\">class Solution\n{\npublic:\n    double Power(double base, int exponent)\n    {\n        if (base == 0)\n            return 0;\n        int flag = exponent &lt; 0 ? 1 : 0; \/\/exponent\u662f\u5426\u4e3a\u8d1f\u6570\n        exponent = abs(exponent);\n        double ans = 1;\n        while (exponent)\n        {\n            if (exponent &amp; 1)\n                ans *= base;\n            base *= base;\n            exponent &gt;&gt;= 1;\n        }\n        return flag ? 1 \/ ans : ans;\n    }\n};\n<\/code><\/pre>\n<h3>Java<\/h3>\n<pre><code class=\"language-java line-numbers\">public class Solution {\n    public double Power(double base, int exponent) {\n        if (base == 0)\n            return 0;\n        boolean flag = exponent &lt; 0;\n        exponent = Math.abs(exponent);\n        double ans = 1;\n        while (exponent &gt; 0) {\n            if ((exponent &amp; 1) == 1)\n                ans *= base;\n            base *= base;\n            exponent &gt;&gt;= 1;\n        }\n        return flag ? 1 \/ ans : ans;\n    }\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u9898\u76ee\u63cf\u8ff0 \u7ed9\u5b9a\u4e00\u4e2adouble\u7c7b\u578b\u7684\u6d6e\u70b9\u6570base\u548cint\u7c7b\u578b\u7684\u6574\u6570exponent\u3002\u6c42base\u7684expone [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[39,49],"class_list":["post-705","post","type-post","status-publish","format-standard","hentry","category-algo","tag-offer","tag-49"],"_links":{"self":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/705","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=705"}],"version-history":[{"count":0,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/705\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}