{"id":471,"date":"2018-12-12T17:05:07","date_gmt":"2018-12-12T09:05:07","guid":{"rendered":"http:\/\/SmokeyDays.top\/wordpress\/?p=471"},"modified":"2018-12-12T17:05:32","modified_gmt":"2018-12-12T09:05:32","slug":"lp5077-tweetuzki-%e7%88%b1%e7%ad%89%e5%b7%ae%e6%95%b0%e5%88%97","status":"publish","type":"post","link":"http:\/\/SmokeyDays.top\/wordpress\/2018\/12\/12\/lp5077-tweetuzki-%e7%88%b1%e7%ad%89%e5%b7%ae%e6%95%b0%e5%88%97\/","title":{"rendered":"lp5077 Tweetuzki \u7231\u7b49\u5dee\u6570\u5217"},"content":{"rendered":"\n<p>\u4ee4\u9996\u9879\u4e3a\\(x\\)\uff0c\u957f\u5ea6\u4e3a\\(l\\)\u7531\u7b49\u5dee\u6570\u5217\u6c42\u548c\u5f0f\u53ef\u5f97\uff1a<br>$$s=\\frac{l(l-1)}{2}+l*x$$<br>\u6545\uff0c\u9898\u610f\u7b49\u4ef7\u4e8e\u6c42\uff1a<br>\u4f7f\u5f97\u5f0f\u5b50\uff1a<br>$$2s=l(l-1+2x)$$<br>\u6210\u7acb\u7684\u6700\u5c0f\\(x\\)<br>\u5373\u6c42\u4f7f\u5f97\u5f0f\u5b50\u6210\u7acb\u7684\u6700\u5927\\(l\\)<br>\u53c8\uff0c\u6613\u77e5\uff1a<br>$$l&lt;\\sqrt{2s},s\\le10^{12}$$<br>\u6545\uff0c<br>$$l&lt;10^{6}$$<br>\u663e\u7136\u8fd9\u4e2a\u590d\u6742\u5ea6\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include&lt;iostream>\n#include&lt;cstdio>\n#include&lt;cmath>\nlong long s;\ninline void init(){\n\tscanf(\"%lld\",&amp;s);\n\tlong long ans=0,len;\n\tfor(long long i=1;i*i&lt;=2*s;++i){\n\t\tif((2*s%i==0)&amp;&amp;(2*s\/i-i+1>0)&amp;&amp;((s-(i*(i-1)\/2))%i==0)){\n\t\t\tlen=i;ans=((2*s)\/i-i+1)>>1;\n\t\t}\n\t}\n\tprintf(\"%lld %lld\",ans,ans+len-1);\n}\n\nint main(){\n\tinit();\n\treturn 0;\n} <\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4ee4\u9996\u9879\u4e3a\\(x\\)\uff0c\u957f\u5ea6\u4e3a\\(l\\)\u7531\u7b49\u5dee\u6570\u5217\u6c42\u548c\u5f0f\u53ef\u5f97\uff1a$$s=\\frac{l(l-1)}{2}+l*x$$ &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/SmokeyDays.top\/wordpress\/2018\/12\/12\/lp5077-tweetuzki-%e7%88%b1%e7%ad%89%e5%b7%ae%e6%95%b0%e5%88%97\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201clp5077 Tweetuzki \u7231\u7b49\u5dee\u6570\u5217\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[35,24,27,6],"tags":[],"_links":{"self":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/471"}],"collection":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/comments?post=471"}],"version-history":[{"count":2,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/471\/revisions"}],"predecessor-version":[{"id":473,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/471\/revisions\/473"}],"wp:attachment":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/media?parent=471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/categories?post=471"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/tags?post=471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}