Recently, feeling bored, I searched for XJOI on Bing, and... it actually showed up in the results... http://cn.bing.com/search?q=www.hzxjhs.com%3A83&go=&qs=n&form=QBLH&pq=www.hzxjhs.com%3A83&sc=0-3&sp=-1&sk= http://cn.bing.com/search?q=%2Bxjoi&go=&qs=n&form=QBRE&pq=%2Bxjoi&sc=0-0&sp=-1&sk= Then I immediately wondered: if Bing indexed it, would Yahoo? And sure enough... it was indexed... http://search.yahoo.com/search;_ylt=A2KLf7U8vblQtAIASlKbvZx4?p=XJOI&toggle=1&cop=mss&ei=UTF-8&fr=yfp-t-701 http://search.yahoo.com/search;_ylt=A0oGdUdIvblQiAMAUcRXNyoA?p=www.hzxjhs.com%3A83&fr2=sb-top&fr=yfp-t-701&type_param= Then Tencent Soso: http://www.soso.com/q?pid=s.idx&cid=s.idx....
Reflections on the NOIP Finals
NOIP gets easier every year. After being crushed by problems on XJOJ before, it was finally my turn to dominate the questions. First, Friday. Rumors spread all morning that XXY would rescue us from class. We went to ask our homeroom teacher for leave. Then we AC'd (got Accepted). After lunch, we took our parents' car to XJ. In the car, my dad told me he installed Win8 for me to try. When I booted it up – x64... Turns out my sound card has bugs under Win8 x64 and won't work... Arrived at XJ, downloaded the x86 ISO, and reinstalled. While reinstalling, I pulled out my Nokia N81 to browse XJOJ... Just arrived at XJ, the computer lab was packed. I immediately spotted JC and DZY – those two beasts heading to crush the advanced division....
A Genius in the Informatics Olympiad Class
Every time the teacher asks us to explain problems, the first-year students always shout the name of Guo. I never knew why they did this; maybe Guo is particularly outstanding. But today, I saw this post on the Xuejun OJ discussion board: Title: Genius! 1st floor: yujialuo2011 "guoyuqi11" (Note: Guo) solved 11 problems in 3 minutes, averaging 16 seconds per problem. What a legend! Everyone should learn from him! How does one cultivate such godlike skills! 2012-07-18 16:27:11 2nd floor: Wuao11 Even more amazing than Carmen! 2012-07-18 16:28:48 3rd floor: cyf2 36119 zhaoyq2011 P1341 Accepted 2012-07-18 16:07:16 36118 guoyuqi11 P1547 Accepted 2012-07-18 15:55:56 36117 guoyuqi11 P1336 Accepted 2012-07-18 15:55:37 36116 guoyuqi11 P1317 Accepted 2012-07-18 15:55:...
Quicksort Implementations by Various OIers (Pascal Language)
OIer 1: procedure qsort (l,r: longint ); var i,j,m,t: longint ; begin i:=l; j:=r; m:=a[(l+r) div 2 ]; repeat while a[i]m do dec(j); if ij; if l <j then qsort(l,j); if i <r then qsort(i,r); end ; OIer 2: Procedure QuickSort (Left, Right : Longint ); Var LeftPointer, RightPointer, Medium, Temp : Longint ; Begin LeftPointer := Left; RightPointer := Right; Medium := a[(Left + Right) Shr 1 ]; Repeat While a[LeftPointer] Medium Do Dec(RightPointer); If LeftPointer j; If Left < RightPointer Then QuickSort(Left,RightPointer); If LeftPointer < Right Then QuickSort(LeftPointer,Right); End ; {End Procedure} OIer 3: procedure kuaipai (z,y: longint ); var i,j,m,t: longint ; begin i:=z;j:=y;m:=a[(z+y) div 2 ]; repeat while a[i]m do dec(j); if ij; if z <j then kuaipai(z,j)...