{"id":153,"date":"2012-05-18T23:48:17","date_gmt":"2012-05-18T15:48:17","guid":{"rendered":"http:\/\/wangkaixuan.tech\/?p=153"},"modified":"2020-06-03T23:49:06","modified_gmt":"2020-06-03T15:49:06","slug":"poj-1001-%e9%ab%98%e7%b2%be%e5%ba%a6%e4%b9%98%e6%96%b9-java","status":"publish","type":"post","link":"http:\/\/www.wangkaixuan.tech\/?p=153","title":{"rendered":"poj 1001 \u9ad8\u7cbe\u5ea6\u4e58\u65b9 java"},"content":{"rendered":"\n<p>BigDecimal \u65e0\u538b\u529b \u5904\u7406\u4e00\u4e0b\u5b57\u7b26\u4e32\u5c31\u597d\u4e86~<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.io.IOException;\nimport java.util.Scanner;\n \npublic class Main {\n \n\tpublic static void main(String&#91;] args) throws IOException {\n\t\tScanner in = new Scanner(System.in);\n\t\twhile (in.hasNextBigDecimal()) {\n\t\t\tString str = in.nextBigDecimal().pow(in.nextInt()).toPlainString();\n\t\t\tint point = str.indexOf('.');\n\t\t\tint len = str.length();\n\t\t\tif (point == 1 &amp;&amp; str.charAt(0) == '0') {\n\t\t\t\tstr = str.substring(1, len);\n\t\t\t\tlen--;\n\t\t\t}\n\t\t\tint i = len - 1;\n\t\t\twhile (i > 0 &amp;&amp; str.charAt(i) == '0')\n\t\t\t\ti--;\n\t\t\tif (i != len - 1)\n\t\t\t\tstr = str.substring(0, i + 1);\n\t\t\tlen=str.length();\n\t\t\tif(str.charAt(len-1)=='.'){\n\t\t\t\tstr=str.substring(0,len-1);\n\t\t\t\tif(str.length()==0)\n\t\t\t\t\tstr=\"0\";\n\t\t\t}\n\t\t\tSystem.out.println(str);\n\t\t}\n\t}\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>BigDecimal \u65e0\u538b\u529b \u5904\u7406\u4e00\u4e0b\u5b57\u7b26\u4e32\u5c31\u597d\u4e86~<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-153","post","type-post","status-publish","format-standard","hentry","category-06-01-acm"],"_links":{"self":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/posts\/153","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=153"}],"version-history":[{"count":0,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/posts\/153\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=153"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}