叠拓C语言笔试题目

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1、Telecom&MediaRecruitmentTestTietoInformationTechnology(Beijing)Co.,Ltd.SoftwareDeveloper叠拓信息技术（北京）有限公司杭州分公司CompanyConfidentialName:TelephoneNo.:Date:InstructionsPleaseanswerfollowingquestionsinEnglish,youcanonlyuselessthan60minutesforthistest1.Preprocessor10points)a)PleasedefineaMacrobyusing

2、preprocessinstruction#definein16-bitmachine,theconstantisusedtoindicatehowmanysecondsinoneyear.(Toignoretheleapyear)#defineSEC_PER_YEAR(365*24*60*60UL)(Note:Ifyoudefineittobe(365*24*60*60)UL,youmaybefindthatitdoesnotcompilewell.)b)PleasedefineaMacro,whichisusedtocomparetwoparametersandreturn

3、thesmallerparameter.#defineMIN(a,b)((a)<=(b)?(a):(b))2.Whatistheproblemofthebelowcode(5points)#includechar*Func(void){charp[10];strcpy(p,"111");returnp;}Thisfunctioncannotreturnthestringof“111”.3.Datadeclarations(10points)Pleasedefineavariableaccordingtothebelowrequirement,forexamp

4、leRequirement:AnintegerAnswer:inta;a)Apointertoaninteger(1point)int*a;b)Apointertoapointertoaninteger(1point)int**a;c)Anarrayof10integers(1point)inta[10];d)Anarrayof10pointerstointegers(1point)Copyright©2021TietoCorporationTelecom&MediaRecruitmentTestTietoInformationTechnology(Beijing)Co.,Lt

5、d.SoftwareDeveloper叠拓信息技术（北京）有限公司杭州分公司CompanyConfidentialint*a[10];e)Apointertoanarrayof10integers(2points)int(*a)[10];f)Apointertoafunctionthattakesanintegerasanargumentandreturnsaninteger(2points)int(*a)(int)g)Anarrayoftenpointerstofunctionsthattakeanintegerargumentandreturnaninteger(2poin

6、ts)int(*a[10])(int)4.What’stheoutputofthefunctionandwhy?(6points)voidfoo(void){unsignedinta=6;intb=-20;(a+b>6)?puts(">6"):puts("<=6");}Result:“>6”Reason:Whenavariableofintegeroperateswithavariableofunsignedinteger,theintegerwillbeautomaticallyconvertedtounsignedinteger,sothe“-20”willbeconver

7、tedtobealargeunsignedinteger.5.Const(9points)Inthefollowingcodes,therearesome“const”,whatismeaningofeachthem?a)constchar*pa;Thecontentofpaisread-only. b)char*constpc=&ca;Theaddressofpcisread-only. c)constchar*constpd=&cb;Boththeaddressandcontentofp