题库语言历年试卷2007b

开课学院：计算机学院 考试形式：闭考试时间：2008年1月21日,所需时间：120分钟，任课教师考生： Section1:SingleChoice（2markforeachitem,total20Thefollowingcodefragmentprintsout charc[20]=“\time\\\0will\n”; Inthefollowingassignmentsorinitialization, iswrong.A．chars[]=" B．chars[10];s="C．char*p=" D．char*p;p="Ifallvariableshavebeendefinedanddeclaredinthefollowingprogram,allthevariableswhichcanbeusedinfunctionfun()are voidfun(intx) staticint}intvoidmain( int}x, B．x,y, C． Thefollowingcodefragmentprintsout char*c[3]={“FIRST”,“SECOND”,“THIRD”};printf(“%s”, Theexpressiontojudge“whetherthevariablechisanalphabeticcharacterornot”is A．('a'<=ch<='z')||('A'<=ch<='Z')B．(ch>='a'&&ch<='z')&&(ch>='A'&&ch<=C．(ch>='a'&&ch<='z')||(ch>='A'&&ch<='Z')D．('a'<=ch<='z')&&('A'<=ch<='Z')Therewillbeanerrorifexecutingstatementprintf(" ","A"); D．%ecisacharactervariable.Whichexpressionmakesthevalueofcbeeither1or C．c= D．c=WhichprecedenceofthefollowingoperatorsranksA！ B．[ C．? TheoutputofthefollowingCprogramis #include<stdio.h>voidmain( intdoubled=3.4,x;printf("(%0.2f,%d)",x,}A．(0.00, B．(0.85, C．(0.50, D．noneofAfterthefollowingcodefragmentisexecuted,thevalueofvariablesis inti=5,s=0;while(i-->0){if(i%2)s+=i;elses+=i-- Section2:Fillintheblanks（2markforeachitem,total30Thevalueof Thefollowingcodefragmentprintsout Writethedeclaration withtypedefwhichmakesPAasynonym(同义词foracharacterpointerarray,whichcontains10elements.Thefollowingprogramprintsout #include<stdio.h>intf(int{staticintk=0;ints=0;for(;k<m;k++)++s;returns;}voidmain({ints=1;printf("%d#%d#",s,}Thefollowingprogramprintsout voidf(intn,chars[]){staticinti=0; }}{

intx=12345,i=0; }Thefollowingcodefragmentprints for(s=0,p=*(a+1);p<*(a+3);p=p+2)s+=*p;printf(“%d”,Assumethenameoftheexecutablefileoftheprogrambelowis“prog”:#include<stdio.h>intmain(intargc,char*argv[])printf("%s#%s#",argv[0],argv[argc-return}Theoutputis afterexecutingthecommand:progoThefollowingprogramprintsout #definemy_square_add(a,b)(a*a+b*b)#definemy_square_sub(a,b)(a*a-b*b)intmain(){inta=1,b=printf("%d#",my_square_add(a+b,b));printf("%d#",my_square_sub(a+b,b));return0;}Giventhefunctionprototypevoidprint(FILE*input,constcharwhichtakeinputastheinputstreamandoutputasthenameoftheoutputfile.Nowyouneedtoprintthethestandardinputstream(stdin)tothefile“temp.txt”inyourprogram,writethestatementtohandlethattask. Givenathefunctionbelow:voidfoo(intx){for(;x<10;x+=}Nowassumexissetto1,what'sthevalueofxaftercallingfoo(x)somewhere Iftheassociativitiesoftheoperators*and/areright-to-left,thevalueofexpression10*6/5 Thefollowingcodefragmentprintsoutthereverseduppercaseletters(fromZtoA). Thefunctionofthefollowingcodefragmentinti=0,s=0,a[10];s,a[10],*p=a; if(*p<0)Thefollowingcodefragmentprintsout charc='d';intsum=0,k=-1<0<1;switch(c){switch(k)casecase}case'a':case'b':sum+=20;break;case'c':sum+=30;}Thefunctionoff1()isequivalenttothefunctionoff2().voidf1(chars[],chart[]) intwhile(t[i]!='\0'){s[i]=t[i];i++;}}voidf2(char*s,char{while }Section3:Readeachofthefollowingprogramsandanswerquestions(５marksforeachitem,totalmarks:30)Theoutputofthefollowingprogramis #include<stdio.h>void{inti,for(i=0;i<3;i++) for(i=0;i<3;i++)for(j=0;p[i][j]>=’0’&&p[i][j]<=’9’;if((p[i][j]%3)&&(p[i][j]%2==0)) s=10*s+p[i][j]-‘0’;printf(“%d\n”,s);}Theoutputofthefollowingprogramis #include<stdio.h>intf(inta[],int{intthis,that,i,j;for(i=0;i<n;i++){for(j=i;j<n;j++){this+=a[j];if(this>thatthat=}}return}void }Theoutputofthefollowingprogramis #include<stdio.h> intfor(i=0;i<3;i++)s+=*(*a+i);printf("%d#",s);for(i=0;i<3;i++)s+=**(a+i);printf("%d#",}Wheninput:HowAreYou?<ENTER>,theoutputofthefollowingprogramis voidst(chars[]){inti;charch;if(strlen(s)>2)for(i=1;s[i]!='\0';i++){s[i]=ch;}}{charsh[20];}Theoutputofthefollowingprogramis #include<stdio.h>intvoidp(int*x,int{++yz=*x+y;printf("%d,%d,%d#",*x,y,z);}void{intx=1,y=2,z=3;p(&y,x);}Theoutputofthefollowingprogramis #include<stdio.h>intf(inta[],intn,int{inti,j,sum,for(j=0;j<m;j++)max+=a[j];for(i=1;i<n;i++){for(j=0;j<m;j++)sum+=*(a+i*m+j);if(sum>max)}return}void{staticintprintf(“%d”,f(a,3,}Section4:Accordingtothespecification,completeeachprogram(2marksforeachblank,total:20marks)Giventwochaininglisth1andh2,thefollowingfunctionfjointsthelisth2afterlisth1.Forexample,ifh1={1,2,3,4},h2=(5,6,7,8),afterthefunction,h1willbe(1,2,3,4,5,6,7,8):43214321876587321after87321structnodeintstructnodevoidf(structnode*h1,structnode structnodeif(h1==NULL)(1)}while((2)!=NULL)p->next=(3)}Thereisatextfile,whichcontainsanumber(lessthan100)ofpositivedecimalintegers.Writeacommand-lineprogramprog.ctosearchthefileforaninteger.Ifthisintegerisinthefile,theprogramwilloutput“Found”;Otherwise,willoutput”Notfound”Requirements:taketheinputfilenameandthesearchedintegerascommand-lineparameters.ForThecommand-lineproginfile.txtIftheinputtextfileinfile.txtcontainsthefollowing1223745266791933theoutputwillbeIftheinputtextfileinfile.txtcontainsthefollowing TheoutputwillbeNot#include<stdio.h> voidsort(inta[],int /*sortanintegerarrayintotheincreased{inti,index,k,temp;for(k=0;k<n-1;k++){for(i=k+1;i<n;i++) }}intatoi(char /*convertastringto{inti,n,for(i=0;sign=(s[i]=='-')?-if(s[i]=='+'||s[i]=='-')for(n=0;isdigit(s[i]);n=10*n+(s