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1、长安大学ACM-2013暑期集训队说明：本次队内赛旨在考察大家上阶段训练情况，让大家体验一下现场的赛制。比赛通过PC^2系统进行，这也是windows环境下ACM的标准比赛系统。大家通过账号密码自行登陆，完成题目内容之后，选择题目，语言无论是C还是C++都选择GUNC++，并提交文件（.c/.cpp），文件名不限。程序中不需要使用文件输入输出，按照正常的程序提交即可。注意主函数intmain()结束时返回0。题目难度不会很大，关键在于读懂题意。另外需要多注意输入输出格式等细节问题。要特别注意以下几题的输出格式可能很像但是有区别（因为是多个人出的题）。题
2、目：A:MagicalPrimeNumberByJcf【Description】MhasalittlebrothernamedR.Oneday,R’smathteachertellshimanewword–primenumber.Risreallyinterestedintheprimenumber,soafterhereturnstohome,heaskedMforhelp.Mtellshimthatprimenumbercannotbedividedexactlybyanyothernumberexceptitselfandthenumber1,f
3、orexample,2,3,5,7,11areprimenumbers,but4isnotaprimenumber.R:So,isXaprimenumber?M:YES.R:HowaboutY?M:……Rissointerestedinitthathehasaskedmanynumbers.YourtaskiswritingaprogramtohelpManswerR’squestions.RwillaskNnumbers,foreachnumber,ifitisaprimenumber,justtellhim‘YES’.Butifitisnotapr
4、imenumber,youhavetotellhim‘NO’,thenfindthenearestprimenumberforhim.【InputFormat】Line1:Asingleinteger,N;Line2ton+1:eachlinehasanumberX,youhavetojudgewhetherXisaprimenumber.(1<=N<=15000,1<=X<=32767)【OutputFormat】WrittenByJcf长安大学ACM-2013暑期集训队ForeachX,firstyoushouldoutputthecasenumb
5、er.Output‘Case’,thenablank,then‘#’,thenablank,thenthenumberand‘:’.(Toseethesampleoutout)IfXisaprimenumber,justprint‘YES’.ButifXisnotaprimenumber,pleaseprint‘NO’inthefirstlineandthenprintaninteger(thenearestprimenumber)inthenextline.Iftherearetwoprimenumbersthathavesamedistancest
6、oX,printthebiggerone.Forexample,ifXis9,youfind7and11,boththeirdistanceis2from9,print11.Thereneedsanewlinebetweentwocases.【SampleInput】59111436【SampleOutput】Case#1:NO11Case#2:YESCase#3:NO13Case#4:YESCase#5:NO7【Hits】Takeiteasy,justusethesimplewaytosolveit,thereisnoneedforyoutousea
7、dvancedalgorithm.ButpayattentiontoyourOutputFormat.B:HelloWorld!ByLqWrittenByJcf长安大学ACM-2013暑期集训队【Description】Weallknowthatthesimplestprogramisthe“HelloWorld!”program.Thisisaproblemjustassimpleasthe“HelloWorld!”Inalargematrix,therearesomeelementshasbeenmarked.Foreverymarkedeleme
8、nt,returnamarkedelementwhoserowandcolumnarelarg
