c++题库编程题

1、112-5#include#include#includeusingnamespacestd;classTriangleinta,b,c;public:doubleArea()doubles=(a+b+c)/2;returnsqrt(s*(s-a)*(s-b)*(s-c);intPerimeter()returna+b+c;voidInput()cinabc;voidmain()Trianglet1;t1.Input();coutt1.Area()t1.Perimeter();/2-3#includeinlineintmax(inta,intb)if(ab)returna;elsereturn

2、b;inlineintmax(inta,intb,intc)returnmax(a,max(b,c);voidmain()intx=21,y=15,z=22,d;d=max(x,max(y,z);coutd;/2-4#includeintoverload(intn);charoverload(charn);voidmain()intn;chars;coutn;coutn=overload(n)endl;cout输入as;couta=;coutoverload(s)endl;intoverload(intn)(returnn;charoverload(charn)(coutbendl;retur

3、n0;/2-2#includeiostream”usingnamespacestd;inlinechartrans(charch);intmain()(charch;while(ch=getchar()!=n)couttrans(ch);cout=a&ch=z)returnch-32;elsereturnch+32;/3-1#includeusingstd:cout;usingstd:endl;intMin(inta,intb)(return(ab?a:b);intMin(inta,intb,intc)(return(Min(a,b)c?Min(a,b):c);intMin(inta,intb

4、,intc,intd)(return(Min(a,b,c)d?Min(a,b,c):d);voidmain(void)(coutMIN(1,2)=Min(1,2)endl;coutMIN(3,4,5)=Min(3,4,5)endl;coutMIN(4,5,6,7)=Min(4,5,6,7)endl;/3-2#includeusingnamespacestd;voidArea(floatr)(coutthecirclesareais:3.14*r*rendl;voidArea(floata,floatb)(couttherectangles(squares)areais:a*bendl;void

5、Area(floata,floatb,floath)(coutthetrapzoidsareais:(a+b)*h/2endl;voidmain()(Area(5);Area(3,3);Area(3,5,4);/3-3#includeusingnamespacestd;voidSort(inta,intn)(boolflag;for(inti=0;in-1;i+)(flag=false;for(intj=1；jaj)(inttemp=aj-1;aj-1=aj;aj=temp;flag=true;if(!flag)break;for(intm=0;mn;m+)coutam;coutendl;vo

6、idSort(floatb,intn)(boolflag;for(inti=0;in-1;i+)(flag=false;for(intj=1;jbj)(floattemp=bj-1;bj-1=bj;bj=temp;flag=true;if(!flag)break;for(intm=0;mn;m+)coutbm;coutendl;voidmain()(inta10=3,5,1,2,9,0,8,6,4,7;floatb10=0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0;Sort(a,10);Sort(b,10);/3-4#includeusingnamespace

7、std;classRectanglefloata,b;public:Rectangle()coutinputthetwosideoftherectangle:ab;Rectangle(floatx,floaty):a(x),b(y)floatCir()return(2*(a+b);floatArea()return(a*b);voidmain()RectangleRe;couttherectanglescircumferenceis:Re.Cir()endltherectanglesareais:Re.Area()endl;/3-5#includeusingnamespacestd;class

8、Circlefloatr;public:Circle()coutinputtheradiusofthecircle:r;Circle(floatx):r(x)floatCir()return2*3.14*r;floatArea()(return3.14*r*r;；voidmain()(CircleC(5);couttheCirclescircumferenceis:C.Cir()endltheCirclesAreais:C.Area()endl;/4-1classstudent(intno;charname20;public:student();intgetno()const;char*get

9、name();#includestudent:student()(no=1;strcpy(name,wang);intstudent:getno()const(returnno;char*student:getname()(returnname;intmain()(students1;s1.getno();s1.getname();conststudents2;s2.getno();return0;/4-3#includeclassobjectfloata;floatweight;public:object(floatw);object()coutdestructweightendl;clas

10、sbox:publicobjectfloatb;floatheight,widt;public:box(floatw,floath,floatwi):object(w),height(h),widt(wi)coutconstructheightendl;coutconstructwidtendl;box()coutdestructheightendl;coutdestructwidtendl;object:object(floatw)weight=w;coutconstructweightendl;intmain()boxb(1.1,2.2,3.3);return0;/4-4#includei

11、ostreamusingnamespacestd;classbaseclasspublic:baseclass()couta.cendl;virtualbaseclass()coutadendl;classderivedclass:publicbaseclass(public:derivedclass()cout”b.cendl;derivedclass()cout”b.dendl;intmain()derivedclassobj;baseclass*p;p=&obj;return0;/4-5#includeiostream#includeusingnamespacestd;classDoum

12、entchar*name;public:Doument(char*na)name=newcharstrlen(na)+1;strcpy(name,na);virtualvoidprint()constcout姓名:nameendl;classBook:publicDoumentintpagecount;char*name;public:Book(intp,char*na):Doument(na)p=pagecount;name=newcharstrlen(na)+1;strcpy(name,na);voidprint()constcout页码：pagecount”姓名:nameendl;voi

13、ddisp(Doument&i)(i.print();intmain()(Bookb(23,小明);disp(b);return0;/5-1#includeiostream”usingnamespacestd;classpoint(private:intx;inty;intz;staticintnum;public:point(inta,intb,intc);intprint();intpoint:num=0;intmain()(pointp1(1,2,3);p1.print();pointp2(5,3,2);p1.print();pointp3(3,6,4);p1.print();retur

14、n0;point:point(inta,intb,intc)(x=a;y=b;z=c;num+;intpoint:print()cout第num个点x”,y”,zendl;return0;/5-2#include#includeusingnamespacestd;classStucharname15;intage;floatscore;public:staticintcount;staticfloatsum;Stu(char*p,inta,floats):age(a),score(s)strcpy(name,p);count+;sum+=score;Stu()coutinputthestude

15、ntsname,age,score:nameagescore;count+;sum+=score;intStu:count=0;floatStu:sum=0;voidmain()Stup(子机,19,98),q;coutthenumberofstudentsis:Stu:countendlthetotalscoreis:Stu:sumendl;/5-3#includeusingnamespacestd;classPointfloatx,y,z;public:Point(floata=0,floatb=0,floatc=0):x(a),y(b),z(c)Pointoperator+();Poin

16、toperator-();Pointoperator+(int);Pointoperator-(int);voidshow()cout”(x,y,z)=(x,y,z)endl;PointPoint:operator+()returnPoint(+x,+y,+z);PointPoint:operator-()returnPoint(-x,-y,-z);PointPoint:operator+(int)Pointtemp;temp.x=x+;temp.y=y+;temp.z=z+;returntemp;PointPoint:operator-(int)Pointtemp;temp.x=x-;tem

17、p.y=y-;temp.z=z-;returntemp;voidmain()Pointa(1,1,1),b(2,2,2),c,d;couta:;a. show();coutb:;b. show();coutendl;c=a+;coutc=a+n;coutc:;c. show();coutendl;d=+b;coutd=+bn;coutd:;d. show();coutNewaandb:n;a. show();b. show();coutendl;c=a-;coutc=a-n;coutc:;c. show();coutendl;d=-b;coutd=-bn;coutd:;d. show();co

18、utNewaandb:n;a. show();show();/5-4#includeusingnamespacestd;classComplexfloatreal,image;public:Complex(floata,floatb):real(a),image(b)Complex()friendbooloperator=(Complex&x,Complex&y)return(x.real=y.real&x.image=y.image);voidmain()ComplexCp1(1,2),Cp2(3,4),Cp3(1,2);cout(Cp1=Cp2)endl(Cp1=Cp3)endl;/6-1

19、#includeusingnamespacestd;classComplex(floatreal,image;public:Complex(floatx,floaty):real(x),image(y)Complex()Complexoperator+(Complex&a)returnComplex(real+a.real,image+a.image);Complexoperator-(Complex&b)returnComplex(real-b.real,image-b.image);friendostream&operator(ostream&output,Complex&c)output

20、(c.real,c.image);returnoutput;voidmain()ComplexCp1(1,-2),Cp2(2,5),Cp3,Cp4;Cp3=Cp1+Cp2;Cp4=Cp1-Cp2;coutCp1+Cp2=Cp3endlCp1-Cp2=Cp4endl;/6-2#includeusingnamespacestd;classcomputerfloatx,y;public:computer(floata=0,floatb=0):x(a),y(b)computeroperator+();computeroperator-();computeroperator+(int);computer

21、operator-(int);voidshow()cout(x,y)=(x,y)endl;computercomputer:operator+()(returncomputer(+x,+y);computercomputer:operator-()(returncomputer(-x,-y);computercomputer:operator+(int)(computertemp;temp.x=x+;temp.y=y+;returntemp;computercomputer:operator-(int)(computertemp;temp.x=x-;temp.y=y-;returntemp;v

22、oidmain()(computera(1,1),b(2,2),c,d;couta:;a. show();coutb:;b. show();coutendl;c=a+;coutc=a+n;coutc:;c. show();coutendl;d=+b;coutd=+bn;coutd:;d. show();coutNewaandb:n;a. show();b. show();coutendl;c=a-;coutc=a-n;coutc:;c. show();coutendl;d=-b;coutd=-bn;coutd:;d. show();coutNewaandb:n;a. show();show()

23、;/6-3#include#includeclassstringchar*xstring;public:string(char*str);string();string&operator=(conststring&);voidprint();string:string(char*str)xstring=newcharstrlen(str)+1;strcpy(xstring,str);string:string()deletexstring;voidstring:print()coutxstringendl;intmain()strings1(hello);strings2(yangchenhu

24、an);s2.print();s2=s1;cout修改后：;s2.print();return0;string&string:operator=(conststring&s)(if(this=&s)return*this;deletexstring;xstring=newcharstrlen(s.xstring)+1;strcpy(xstring,s.xstring);return*this;/6-4#include#includeusingnamespacestd;classString(public:String()(p=NULL;String(char*str);friendboolop

25、erator=(String&string1,String&string2);voiddisplay();private:char*p;String:String(char*str)(p=str;voidString:display()(coutp;输出P所指向的字符串booloperator=(String&string1,String&string2)(if(strcmp(string1.p,string2.p)=0)returntrue;elsereturnfalse;voidcompare(String&string1,String&string2)(if(operator=(stri

26、ng1,string2)=0)(string1.display();cout=;string2.display();elsecouterror!endl;intmain()(Stringstring1(Hello),string2(china);compare(string1,string2);return0;/6-5#include#includeusingnamespacestd;classString(char*p;public:String()p=NULL;String(constchar*s)p=newchar(strlen(s)+1);strcpy(p,s);char*operat

27、or+(constchar*s)char*temp=newchar(strlen(p)+strlen(s)+1);strcpy(temp,p);strcat(temp,s);returntemp;friendbooloperator=(constString&a,constString&b)return(!strcmp(a.p,b.p);friendostream&operator(ostream&output,constString&d)outputd.p;returnoutput;voidmain()StringStr1(Malagebi!”),Str2(Ready,Go!”),Str3;

28、Str3=Str1+nishi”;coutStr3endl(Str1=Str2)endl;/7-1#includeusingnamespacestd;classCar(intwnum;floatweight;public:Car(inta,floatb):wnum(a),weight(b)voidCshow()cout轮子个数：wnum个endl车重：weightTendl;classSmallCar:privateCarints_cnum;public:SmallCar(inta,floatb,intc):Car(a,b),s_cnum(c)voidSshow()Cshow();cout载客

29、量：s_cnum人次endl;classBigCar:privateCarintb_cnum;floatb_cweight;public:BigCar(inta,floatb,intc,floatd):Car(a,b),b_cnum(c),b_cweight(d)voidBshow()Cshow();cout载客量：b_cnum人次endl载重量b_cweightTendl;intmain()Carcar(4,8);SmallCarsmallcar(8,16,8);BigCarbigcar(16,32,16,32);cout汽车：endl;car.Cshow();coutn小车：endl;sm

30、allcar.Sshow();coutn卡车：endl;bigcar.Bshow();return0;/7-2#include#includeusingnamespacestd;classShapefloatx,y;public:Shape(floata,floatb):x(a),y(b)voidshow()cout左上角坐标(x,y)=(x,y”)n”;virtualfloatGetArea()=0;classRec:virtualpublicShapefloathigh,width;public:Rec(floatafloatb,floatc,floatd):Shape(a,b),high

31、(c),width(d)voidshow()cout矩形：n;Shape:show();cout矩形宽、高：widthhighendl;floatGetArea()show();returnhigh*width;classEll:virtualpublicShapefloatxx,yy;public:Ell(floata,floatb,floatc,floatd):Shape(a,b),xx(c),yy(d)voidshow()(cout椭圆：n;Shape:show();cout椭圆x轴，y轴：xxyyendl;floatGetArea()(show();return4*atan(1)*xx

32、*yy;intmain()(Recrec(5,5,5,5);Ellell(8,8,12,10);Shape*s;s=&rec;cout矩形的面积：GetArea()endlendl;s=ℓcout椭圆的面积：GetArea()endlendl;return0;/7-3#include/#includeusingnamespacestd;classmammal(intm;public:mammal(inti=0):m(i)(coutmammalisconstructendl;mammal()(coutmammalisdestructendl;classcat:publicmammal(i

33、ntc;public:cat(intj=0):c(j)coutcatisconstructendl;cat()(coutcatisdestructendl;classdog:publicmammal(intd;public:dog(intk=0):d(k)(coutdogisconstructendl;dog()(coutdogisdestructendl;intmain()(catc;dogd;return0;/7-4p39.7/8-1#includeusingnamespacestd;templatedoublesum(T1a,T2b)(return(a+b);voidmain()(coutsum(1,3)endl;coutsum(1.2,3)endl;coutsum(1,3.1)endl;coutsum(1.2,3.34)endl;/8-2P课本179/8-3#includeusingnamespacestd;constintM=100;templ