the 3rd jilin provincial collegiate programming contest

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1、The3rdJiLinProvincialCollegiateProgrammingContestJilinUniversity,2009-5-30No.ProblemTitleBalloonAWelcometoJL2009RedBFractionSubtractionPinkCRoadReconstructionProjectS.RedDCutCornerS.PinkEFindNewHouseGreenFTypewritingOrangeGDividedbyElevenPurpleHBranchPipeWhiteIW-ShapeDataBlueJEnglishWordYellowNot

2、ice:Ifthecontenthasbeenpatched,pleaserefertothewebpage注：如有修改，以网上实时页面为准。rdThe3JiLinProvincialCollegiateProgrammingContestProblemA:WelcometoJL2009Color:RedWelcometothe3rdJiLinProvincialCollegiateProgrammingContest.AlicewantstodrawaposterlikeSeven-SegmentLEDdisplay.Eachcharacterisdisplayedusingaster

3、isksasthesample.Shewantstousedifferentfonttocompleteherwork,thatis,eachletterholdsn+2columnsand2*n+3rows.ThereisjustonecolumnofblanksbetweentwoadjacentlettersInput:Theinputfilehasseveraltestcases.Thefirstlineofeachtestcasecontainsanintegern(0

4、andthestringiswhatyoushouldoutputusethegivenfontsize.Thecharactersofthestringshouldonlyuse'J','L','2','0'and'9'.Thelengthofthestringisnomorethan10.Output:Foreachinputcase,outputthestringbythegivenfont.Don'toutputuselessblanklinesoruselessspaceaftereachline,otherwiseyouwillgeta"PresentationError".

5、Betweentwocases,outputablankline.SampleInput2JL2009SampleOutputPage1of15rdThe3JiLinProvincialCollegiateProgrammingContestProblemB:FractionSubtractionColor:PinkCalculatingthedifferenceoftwofractions,andtheresultisalsoexpressedinfractioninlowestterms.Afractioninwhichthenumeratoranddenominatorhaveno

6、factorsincommon(otherthan1)issaidtobeinitslowestorsimplestterms.Outputthenumeratoronlywhentheresultisinteger.InputEachlinehasfourpositiveintegerswhichareabcd,respectively.Allofthemarelessthan40000.OutputForeachcase,calculatethevalueofa/b-c/d,andprintitinoneline.Theoutputformatsareasfollows:Ifther

7、esultisinteger,printitonaline.Otherwise,printtheresultinthreelines.Thefirstlineisthenumerator,thesecondisseveralsignsof'='expressingthevinculum(fractionbar),andthethirdlineisdenominator.Thewidthoftheoutputshouldbeequal