{"id":300,"date":"2019-09-27T12:00:53","date_gmt":"2019-09-27T04:00:53","guid":{"rendered":"http:\/\/www.guanhaobo.cn\/?p=300"},"modified":"2019-09-27T12:00:53","modified_gmt":"2019-09-27T04:00:53","slug":"vijos-1041-%e7%a5%9e%e9%a3%8e%e5%a0%82%e4%ba%ba%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.guanhaobo.cn\/?p=300","title":{"rendered":"Vijos 1041 \u2014 \u795e\u98ce\u5802\u4eba\u6570"},"content":{"rendered":"<h3>\u80cc\u666f<\/h3>\n<p>\u300a\u98ce\u4e91\u300b\u91cc\u6709\u8be6\u7ec6\u8bb0\u8f7d\uff0c\u81ea\u5df1\u53bb\u770b\u5427^_^&#8230;<\/p>\n<h3>\u63cf\u8ff0<\/h3>\n<p>\u5929\u4e0b\u4f1a\u8bc4\u9009\u4e00\u7ea7\u5f1f\u5b50\uff0c\uff08\u505a\u51fa10\u9898\u4ee5\u4e0a\u7684\u6709\u673a\u4f1a\u53c2\u52a0\u8bc4\u9009\uff09\u3002\u6700\u540e\u8bc4\u9009\u7ed3\u679c\u795e\u98ce\u5802\u6709\u8d85\u8fc7P%\u4f46\u4e0d\u8db3Q%\u7684\u4eba\u88ab\u8bc4\u4e0a\u4e86\uff08\u5f1f\u5b50\u4e00\uff1a\u542c\u8d77\u6765\u50cf\u662fURAL\u4e0a\u76841011\u3002\u98ce\uff1a\u95ed\u5634\uff01\uff01\uff01\uff09\u3002\u73b0\u5728\u7ed9\u4f60P\u548cQ\uff0c\u4f60\u8981\u7b97\u51fa\u795e\u98ce\u5802\u6700\u5c11\u6709\u591a\u5c11\u4eba\u3002\uff08\u6570\u636e\u5f31\u4e86\u4e00\u70b9\uff0c\u6240\u4ee5\u597d\u901a\u8fc7\uff09\u3002<\/p>\n<h3>\u9898\u76ee\u94fe\u63a5<\/h3>\n<p><a href=\"https:\/\/vijos.org\/p\/1041\" title=\"https:\/\/vijos.org\/p\/1041\">https:\/\/vijos.org\/p\/1041<\/a><\/p>\n<h3>\u8f93\u5165\u683c\u5f0f<\/h3>\n<p>\u4e24\u4e2a\u5b9e\u6570P\uff0cQ\u3002\u7528\u7a7a\u683c\u9694\u5f00\u3002\u6bcf\u4e2a\u6570\u6700\u591a\u6709\u4e24\u4f4d\u5c0f\u6570\u30020.00&lt;=p&lt;q&lt;=99.99<\/p>\n<h3>\u8f93\u51fa\u683c\u5f0f<\/h3>\n<p>\u795e\u98ce\u5802\u6700\u5c11\u7684\u4eba\u6570\u3002<\/p>\n<h3>\u6837\u4f8b\u8f93\u5165<\/h3>\n<p><code>13 14.1<\/code><\/p>\n<h3>\u6837\u4f8b\u8f93\u51fa<\/h3>\n<p><code>15<\/code><\/p>\n<h3>\u9898\u76ee\u5206\u6790<\/h3>\n<p>\u8bbe\u795e\u98ce\u5802\u6700\u5c11\u7684\u4eba\u6570\u662fi\uff0c\u5219 <code>i * p * 0.01<\/code>\u5230<code>i * q * 0.01<\/code>\u4e4b\u95f4\u81f3\u5c11\u6709\u4e00\u4e2a\u6b63\u6574\u6570\u3002<br \/>\n\u7531\u4e8e\u5c06\u6d6e\u70b9\u6570\u5f3a\u5236\u8f6c\u6362\u4e3aint\u662f\u4e0d\u4f1a\u56db\u820d\u4e94\u5165\u7684\uff0c\u6240\u4ee5\u53ef\u4ee5\u5f97\u5230<br \/>\n<code>(int)(i * q * 0.01) - (int)(i * p * 0.01) &gt;= 1<\/code><br \/>\n\u9898\u76ee\u4e2d\u8bf4\u8d85\u8fc7P%\u4f46\u4e0d\u8db3Q%\uff0c\u4e5f\u5c31\u662f\u8bf4\u4e0d\u5305\u62ecP%\u548cQ%<br \/>\n\u6240\u4ee5\u5f53<code>i * q * 0.01<\/code>\u548c<code>i * p * 0.01<\/code>\u6070\u597d\u90fd\u662f\u6574\u6570\u4e14\u4e24\u6570\u4e4b\u5dee\u4e3a1\u65f6\uff0c\u8fd9\u65f6\u662f\u4e0d\u53ef\u53d6\u7684\uff0c\u56e0\u4e3a\u4e24\u8005\u4e4b\u95f4\u5e76\u6ca1\u6709\u4e00\u4e2a\u6574\u6570\u3002<br \/>\n\u56e0\u6b64\u6211\u4eec\u9700\u8981\u4ee4<code>i * q * 0.01<\/code>\u51cf\u53bb\u4e00\u4e2a\u6570\uff0c\u4ee4<code>i * p * 0.01<\/code>\u52a0\u4e0a\u4e00\u4e2a\u6570\uff0c\u5c06\u521a\u624d\u7684\u7279\u6b8a\u60c5\u51b5\u8fdb\u884c\u6392\u9664\u3002\u8fd9\u4e2a\u6570\u53ea\u8981\u5c0f\u4e8e0.0001\u5373\u53ef\uff0c\u56e0\u4e3a p% \u548c q% \u7684\u7cbe\u5ea6\u662f0.0001\uff0c\u53ea\u8981\u5c0f\u4e8e0.0001\u5c31\u4e0d\u4f1a\u5bf9\u6b63\u5e38\u7684\u60c5\u51b5\u4ea7\u751f\u5f71\u54cd\u3002<\/p>\n<p>\u53ea\u8981\u4ece1\u5f00\u59cb\u679a\u4e3e\uff0c\u7b2c\u4e00\u4e2a\u7b26\u5408\u6761\u4ef6\u7684i\u5c31\u662f\u7b54\u6848\u3002<\/p>\n<h3>AC\u4ee3\u7801<\/h3>\n<pre><code class=\"language-cpp line-numbers\">#include &lt;stdio.h&gt;\n#include &lt;math.h&gt;\nint main()\n{\n    int i;\n    double p, q;\n    scanf(\"%lf%lf\", &amp;p, &amp;q);\n    for (i = 1;; i++)\n    {\n        if ((int)(q * i \/ 100 - 0.00000001) - (int)(p * i \/ 100 + 0.00000001) &gt;= 1)\n        {\n            printf(\"%d\", i);\n            break;\n        }\n    }\n    return 0;\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u80cc\u666f \u300a\u98ce\u4e91\u300b\u91cc\u6709\u8be6\u7ec6\u8bb0\u8f7d\uff0c\u81ea\u5df1\u53bb\u770b\u5427^_^&#8230; \u63cf\u8ff0 \u5929\u4e0b\u4f1a\u8bc4\u9009\u4e00\u7ea7\u5f1f\u5b50\uff0c\uff08\u505a\u51fa10\u9898\u4ee5\u4e0a\u7684\u6709\u673a\u4f1a [&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":[29,53,54],"class_list":["post-300","post","type-post","status-publish","format-standard","hentry","category-algo","tag-vijos","tag-53","tag-54"],"_links":{"self":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/300","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=300"}],"version-history":[{"count":0,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/300\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}