{"id":445,"date":"2009-04-04T22:26:26","date_gmt":"2009-04-04T14:26:26","guid":{"rendered":"http:\/\/sinyalee.com\/blog\/?p=445"},"modified":"2009-04-04T22:26:26","modified_gmt":"2009-04-04T14:26:26","slug":"%e4%bb%8e%e4%b8%80%e9%81%93ural%e7%9a%84%e6%af%94%e8%b5%9b%e9%a2%98%ef%bc%8c%e8%ae%b2%e5%88%b0pascal%e7%9a%84math%e5%ba%93%ef%bc%8c%e5%86%8d%e8%ae%b2%e5%88%b0%e5%ad%a6%e4%b9%a0%e7%bc%96%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/sinyalee.com\/blog\/?p=445","title":{"rendered":"\u4ece\u4e00\u9053Ural\u7684\u6bd4\u8d5b\u9898\uff0c\u8bb2\u5230Pascal\u7684math\u5e93\uff0c\u518d\u8bb2\u5230\u5b66\u4e60\u7f16\u7a0b\u8bed\u8a00"},"content":{"rendered":"

\u521a\u521a\u90ed\u6653\u65ed\u6765\u5230\u6211\u5bb6\uff0c\u4e00\u8d77\u5237\u6708\u8d5b\uff0c\u6211\u672c\u6765\u5728\u505aUSACO\u7684The Bovine Journal, \u6682\u65f6\u653e\u4ed6\u4e00\u4e2a\u4eba\u505a\u3002\u540e\u6765\u53d1\u73b0MLE\u4e4b\u540e\u5c31\u8dd1\u53bb\u73a9FIFA 08, \u7136\u540e\u4e00\u8d77\u5403\u82cf\u5357\u9e45\u8089\uff0c\u5269\u4e0d\u52301\u5c0f\u65f6\u505a\u8fd9\u9053\u9898\uff0c\u6700\u540e\u6162\u4e862\u5206\u949f\u505a\u5b8c\u3002<\/p>\n

\u5730\u5740\uff1ahttp:\/\/acm.timus.ru\/problem.aspx?space=1&num=1705<\/a><\/p>\n

\u7b80\u8ff0\u5c31\u662f\u8f93\u5165n, 1<=n<=10^18, \u8981\u6c42\u5728O(1)\u7684\u590d\u6742\u5ea6\u5185\u7b97\u51fa\u4e00\u4e2a\u6700\u5c0f\u7684\u6570k, \u4f7f\u5f97[n\/k]=[n\/(k+1)]\u3002\u5f88\u660e\u663e\u662f\u4e00\u9053\u7eaf\u6570\u5b66\u9898\u3002\u6211\u7528\u627e\u89c4\u5f8b\u505a\u51fa\u6765\u4e86\uff0c\u8bc1\u660e\u5e94\u8be5\u4e5f\u4e0d\u96be\uff0c\u4f3c\u4e4e\u5f52\u7eb3\u4e00\u4e0b\u5c31\u53ef\u4ee5\u4e86\u2026\u2026<\/p>\n

\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

\/\/ For Junde Huang
\/\/ Written by Sinya in April, 2009 <\/p>\n

uses math; <\/p>\n

const
  pn=’hare’; <\/p>\n

var
  t:longint;
  n,l,r,m,dif,now,sol:int64; <\/p>\n

procedure work;begin
  readln(n); <\/p>\n

  l:=trunc(sqrt(n));
  r:=l+1; <\/p>\n

  if l*r>n then begin
    sol:=r;
    now:=l*r-n;
    dif:=ceil((-3+sqrt(1+4*now))\/2);
    sol:=sol+dif;
  end else begin
    sol:=r;
    now:=r*r-n;
    dif:=trunc(sqrt(now-1));
    sol:=sol+dif;
  end; <\/p>\n

  writeln(sol);
end; <\/p>\n

begin <\/p>\n

  readln(t);
  while t>0 do begin
    work;
    dec(t);
  end;
end. <\/p>\n

\u7ed3\u679c\u6211\u672c\u6765\u662f\u53ef\u4ee5\u5728\u6bd4\u8d5b\u7ed3\u675f\u524d\u901a\u8fc7\u7684\uff0c\u6211\u672c\u6765\u6ca1\u6709\u7528math, ceiling\uff08\u4e0a\u53d6\u6574\uff09\u51fd\u6570\u5199\u7684\u662fturnc(x-0.0000001)+1\uff0c\u7ed3\u679c\u5f88\u8be1\u5f02\u7684WA\u6389\u4e86\u3002\u540e\u6765\uff0c\u6211\u53d1\u73b0\uff0c\u539f\u6765\uff0ctrunc\u51fd\u6570\u4e0d\u662f\u9ad8\u65af\u51fd\u6570\uff08\u4e0b\u53d6\u6574\u51fd\u6570\uff09\u3002trunc\u51fd\u6570\u662f\u4e00\u4e2a\u5f88\u8be1\u5f02\u7684\u4e1c\u897f\uff1a\u5bf9\u4e8e\u6b63\u6570\u662f\u4e0b\u53d6\u6574\uff0c\u5bf9\u4e8e\u8d1f\u6570\u4fbf\u662f\u4e0a\u53d6\u6574\u2014\u2014\u5c31\u662f\u628a\u5c0f\u6570\u90e8\u5206\u53bb\u6389\u3002 <\/p>\n

\u7ed3\u679c\uff0c\u6211\u5728\u8d1f\u6570\u7684\u5730\u65b9\u9519\u4e86\u2026\u2026fuck<\/font> <\/p>\n

\u6bd4\u8d5b\u7ed3\u675f2\u5206\u949f\uff0c\u6211\u53d1\u73b0\u9519\u8bef\u7684\u5730\u65b9\u3002\u7528\u4e86math\uff0c\u6539\u6210ceil(x)\uff0c\u5c31\u8fc7\u4e86\u2026\u2026 <\/p>\n

================================================================== <\/p>\n

\u8fd9\u4ef6\u4e8b\u544a\u8bc9\u6211\u4eec\uff0cFree Pascal\u7684math\u5e93\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u4e1c\u897f\u3002\u800c\u4e14\u6bd4\u8d5b\u7684\u65f6\u5019\u4e5f\u662f\u53ef\u4ee5\u7528\u7684\u3002\u867d\u7136\u6709\u65f6\u5019\u8bc4\u59d4\u4eec\u53ef\u80fd\u4f1a\u5fd8\u4e86\u7ed9\u4f60\u7f16\u8bd1\uff0c\u5c31\u50cf\u6211\u7684NOIp 2008<\/a>\u4e00\u6837\uff0c\u4f1a\u5413\u6b7b\u4eba\u7684\u3002 <\/p>\n

math\u5e93\u7684\u7528\u6cd5\u5728\u201c\u5b89\u88c5\u76d8:FPC2.2.0docrtl.pdf\u201d \u91cc\u9762\u4e66\u7b7e\u70b9Reference for unit \u2019math\u2019\u5c31\u6709\u4ecb\u7ecd\uff08\u867d\u7136\u662f\u5168\u82f1\u7684\uff09\u3002\u8fd9\u91cc\u6458\u5f55\u51e0\u4e2a\u5230\u76ee\u524d\u4e3a\u6b62\u89c9\u5f97\u6709\u7528\u7684\u4e1c\u897f\uff1a <\/p>\n

ceil (694) Round to infinity
floor (699) Round to minus infinity <\/p>\n

log10 (705) calculate 10-base log
log2 (705) calculate 2-base log
logn (706) calculate N-base log <\/p>\n

arccos (690) calculate reverse cosine
arcsin (691) calculate reverse sine
arctan2 (692) calculate reverse tangent
cotan (696) calculate cotangent
tan (725) calculate tangent<\/p>\n

degtorad (698) convert degrees to radians
radtodeg (716) convert radians to degrees<\/p>\n

max (706) Maximum of 2 values
min (710) Minimum of 2 values <\/p>\n

\u6709\u4e2d\u6587\u4ecb\u7ecd\uff0c\u4e0d\u8fc7\u4f3c\u4e4e\u4e0d\u5168\uff1ahttp:\/\/zhidao.baidu.com\/question\/15304957.html?fr=qrl3<\/a> <\/p>\n

\u6240\u4ee5\uff0cmath\u5e93\u8981\u7ecf\u5e38\u7528\uff0c\u6700\u597d\u6240\u6709\u7684\u7a0b\u5e8f\u90fd\u7528\u3002 <\/p>\n

=================================================================== <\/p>\n

\u8fd9\u4e2a\u6559\u8bad\u5176\u5b9e\u544a\u8bc9\u6211\u4eec\uff1a\u5b66\u4e601\u79cd\u7f16\u7a0b\u8bed\u8a00\uff0c\u9664\u4e86\u8bed\u6cd5\u4e4b\u5916\uff0c\u8fd8\u8981\u5b66\u5f88\u591a\u4e1c\u897f\u3002\u5305\u62ec\u5f88\u591a\u5c0f\u7279\u6027\u548c\u7f16\u8bd1\u539f\u7406\u7b49\u7b49\uff0c\u5f88\u591a\u90fd\u8981\u9760\u5b9e\u9a8c\u6765\u53d1\u73b0\u3002\u6bd4\u5982\u73b0\u5728\uff0c\u6211\u8fd8\u6ca1\u6709\u6ce8\u610f\u5230Pascal\u7684trunc\u51fd\u6570\u4e0d\u662f\u4e0b\u53d6\u6574\u51fd\u6570\u3002\u6240\u4ee5\uff0c\u8981\u8f6cC++\u4e0d\u662f\u5f88\u7b80\u5355\uff0c\u9ad8\u4e2d\u9636\u6bb5\u4e0d\u5b9e\u73b0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u521a\u521a\u90ed\u6653\u65ed\u6765\u5230\u6211\u5bb6\uff0c\u4e00\u8d77\u5237\u6708\u8d5b\uff0c\u6211\u672c\u6765\u5728\u505aUSACO\u7684The Bovine Journal, \u6682\u65f6\u653e\u4ed6\u4e00\u4e2a\u4eba\u505a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,13],"tags":[70,131,225],"class_list":["post-445","post","type-post","status-publish","format-standard","hentry","category-8","category-13","tag-pascal","tag-131","tag-225"],"_links":{"self":[{"href":"https:\/\/sinyalee.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/445","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinyalee.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinyalee.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinyalee.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sinyalee.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=445"}],"version-history":[{"count":0,"href":"https:\/\/sinyalee.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/445\/revisions"}],"wp:attachment":[{"href":"https:\/\/sinyalee.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinyalee.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinyalee.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}