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....

Illustration for Free ASIA Domain: CrazyDomains.Com.Au

Free ASIA Domain: CrazyDomains.Com.Au

Most of you probably have free .CO.CC or .TK domains (I personally use CO.CC). Recently, an Australian domain registrar has been offering free .ASIA domains valid for one year. First, open the homepage: http://www.crazydomains.com.au/ . Find the domain search box on the homepage, select ASIA, as shown below. 0 ! C l i c k S e a r c h . Y o u ′ l l t h e n s e e " 0! Click Search. You'll then see " 0 ! Cl i c k S e a rc h . Y o u ′ llt h e n see " 0" next to yourname.asia. If it shows $1, you'll need to modify your IP address. Next, click Add To Cart, then Register Selected. After that, create an account (I won't detail this). Click Next. You'll then be prompted to purchase add-on services—note these cost money! Deselect all options! Keep clicking NEXT! Finally,...

Host1Free VPS Application Successful

I saw the news about Host1Free VPS online long ago and wanted to apply. However, when I tried from my home computer, it showed "Only registrations from unique IPs allowed." Then I used Go^_^Agent, submitted successfully, but got rejected. After repeated attempts, I wasted Gmail + Hotmail 2 + QQ 2 accounts... Later I told imbushuo about it. He applied directly from the school computer lab and succeeded. Just like that... Eventually I realized it was a dynamic IP issue—applications from dynamic IPs would fail. This time I applied from my dad's office and succeeded. 128MB RAM, 10GB hard drive—only good for tinkering. Probably can't even handle WordPress. IP: 94.249.250....

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)...