c++题库编程题

1、112-5#in clude#in clude#in cludeusing n amespace std;class Trian gle int a,b,c;public: double Area() double s=(a+b+c)/2;return sqrt(s*(s-a)*(s-b)*(s-c); ;int Perimeter() retur n a+b+c;void In put() cin abc; ;void mai n() Triangle t1;t1.I nput();coutt1.Area() t1.Perimeter(); /2-3#in cludein li ne int

2、 max(i nt a,i nt b)if(ab)return a;else return b;in li ne int max(i nt a,i nt b,i nt c)return max(a,max(b,c);void mai n()int x=21,y=15,z=22,d; d=max(x,max(y,z);coutd;/2-4#in cludeint overload(i nt n);char overload(char n);void mai n()int n;char s;cout输入 5;cinn;cout n= overload( n)en dl; cout输入 a s;co

3、uta=; coutoverload(s)e ndl;int overload(i nt n)return n;char overload(char n)coutbe ndl;return 0;112-2#i ncludeiostreamusing n amespace std;in li ne char tran s(char ch);int mai n()char ch;while(ch=getchar()!=n) couttra ns(ch);cout=a&ch=z)return ch-32;elsereturn ch+32;3-1#in cludeusing std:cout;usin

4、g std:e ndl;int Min(int a,int b)retur n (ab?a:b);int Mi n(i nt a,i nt b,i nt c)return (Mi n(a,b)c?Mi n(a,b):c);int Min (i nt a,i nt b,i nt c,i nt d)return (Mi n(a,b,c)d?Mi n(a,b,c):d);void mai n(void)coutMIN(1,2)=Mi n(1,2)e ndl; coutMIN(3,4,5)=Mi n(3,4,5)e ndl; coutMIN(4,5,6,7)=Mi n(4,5,6,7)e ndl;3-

5、2#in cludeusing n amespace std;void Area(float r)coutthe circles area is: 3.14*r*re ndl;void Area(float a,float b)coutthe recta ngles(squares) area is: a*be ndl;void Area(float a,float b,float h)coutthe trapzoids area is: (a+b)*h/2e ndl;void mai n()Area(5);Area(3,3);Area(3,5,4);3-3#in cludeusing n a

6、mespace std;void Sort(int a,int n)bool flag;for(i nt i=0;i n-1;i+)flag=false;for(i nt j=1;jaj)int temp=aj-1;aj-1=aj;aj=temp;flag=true;if(!flag)break;for(i nt m=0;m n ;m+)coutam;coute ndl;void Sort(float b,i nt n)bool flag;for(i nt i=0;i n-1;i+)flag=false;for(i nt j=1;jbj)float temp=bj-1;bj-1=bj;bj=t

7、emp;flag=true;if(!flag) break;for(i nt m=0;m n ;m+)coutbm;coute ndl;void mai n()int a10=3,5,1,2,9,0,8,6,4,7;float b10=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);113-4#in cludeusing n amespace std;class Recta nglefloat a,b;public:Recta ngle()couti nput the two side of the recta ngl

8、e: ab;Recta ngle(float x,float y):a(x),b(y)float Cir()return (2*(a+b);float Area()return (a*b);void mai n()Recta ngle Re;coutthe recta ngles circumfere nee is:Re.Cir()e ndl the recta ngles area is:Re.Area()e ndl;3-5#in cludeusing n amespace std;class Circlefloat r;public:Circle()couti nput the radiu

9、s of the circle:e ndl; cinr;Circle(float x):r(x)float Cir()return 2*3.14*r;float Area()return 3.14*r*r; ；void mai n()Circle C(5);cout the Circles circumfere nee is:C.Cir()e ndl the Circles Area is:C.Area()endl;4-1class stude ntint no;char n ame20;public:stude nt();int get no ()c on st;char*get name(

10、);#in cludestude nt:stude nt()n o=1;strcpy (n ame,wa ng);int stude nt:get no ()c onstreturn no;char*stude nt:get name()return n ame;int mai n()stude nt s1;sl.get no ();sl.get name();const stude nt s2;s2.get no();return 0;4-3#in cludeclass objectfloat a;float weight;public:object(float w);object()cou

11、tdestruct weighte ndl;class box:public objectfloat b;float height,widt;public:box(float w,float h,float wi):object(w),height(h),widt(wi)coutc on struct heighte ndl;coutc on struct widte ndl;box()coutdestruct heighte ndl;coutdestruct widte ndl;object:object(float w)weight=w;coutc on struct weighte nd

12、l;int mai n()box b(1.1,2.2,3.3);return 0;4-4#i ncludeiostreamusing n amespace std;class baseclasspublic:baseclass()couta.ce ndl;virtual baseclass()coutade ndl;class derivedclass:public baseclasspublic:derivedclass()coutb.ce ndl;derivedclass()coutb.de ndl;int mai n()derivedclass obj;baseclass *p;p=&o

13、bj;return 0;4-5#i ncludeiostream#in cludeusing n amespace std;class Doume ntchar *n ame;public:Doume nt(char *na)n ame=new char strle n (n a)+1;strcpy( name ,n a);n amee ndl;virtual void prin t() const cout姓名:;class Book:public Doume ntint pageco unt;char *n ame;public:Book(i nt p,char *n a):Doume n

14、t(na)p=pageco unt;n ame=new char strle n (n a)+1;strcpy (n ame ,n a);页码:pagecount姓名:nameendl;void prin t() const cout;void disp(Doume nt& i)i.pri nt();int mai n()Book b(23, 小明); disp(b);return 0;5-1#i ncludeiostreamusing n amespace std;class pointprivate:int兀int y;int乙static int num;public:poin t(i

15、nt a,i nt b,i nt c); int prin t();int poin t: num=0;int mai n()poi nt p1(1,2,3);pl.pri nt();poi nt p2(5,3,2);pl.pri nt();poi nt p3(3,6,4);pl.pri nt();return 0;poin t:po in t(i nt a,i nt b,i nt c) x=a;y=b;z=c;nu m+;int poin t:pri nt()cout第num个点x,y,zendl; return 0;5-2#in clude#in cludeusing n amespace

16、 std;class Stuchar n ame15;int age;float score;public:static int count;static float sum;Stu(char *p,i nt a,float s):age(a),score(s)strcpy( name,p);coun t+;sum+=score;Stu()couti nput the stude nts n ame,age,score:agescore;coun t+;sum+=score;int Stu:co un t=0;float Stu:sum=0;void mai n()Stu p(子机,19,98

17、),q;coutthe nu mber of stude nts is: Stu:co un te ndlthe total score is: Stu:sume ndl;5-3#in cludeusing n amespace std;class Pointfloat x,y,z;public:Poi nt(float a=0,float b=0,float c=0):x(a),y(b),z(c)Point operator +();Point operator -();Point operator +(i nt);Point operator -(i nt);void show()cout

18、( x , y , z )=( x , y , z )e ndl;Point Poin t:operator +()return Poin t(+x,+y,+z);Point Poin t:operator -()return Poi nt(-x,-y,-z);Point Poin t:operator +(i nt)Point temp;temp.x=x+;temp.y=y+;temp.z=z+;return temp;Point Poin t:operator -(i nt)Point temp;temp.x=x-;temp.y=y-;temp.z=z-;return temp;void

19、mai n()Poi nt a(1,1,1),b(2,2,2),c,d;couta :;a. show();coutb :;b. show();coute ndl;c=a+;coutc = a+n;coutc :;c. show();coute ndl;d=+b;coutd = +bn;coutd :;d. show();coutNew a and b :n;a. show();b. show();coute ndl;c=a-;coutc = a-n;coutc :;c. show();coute ndl;d=_b;coutd = -bn;coutd :;d. show();coutNew a

20、 and b :n;a. show();b. show();5-4#in cludeusing n amespace std;class Complexfloat real,image;public:Complex(float a,float b):real(a),image(b)Complex()friend bool operator =(Complex &x,Complex &y)retur n (x.real=y.rea I& x.image=y.image);void mai n()Complex Cp1(1,2),Cp2(3,4),Cp3(1,2);cout(Cp1=Cp2)e n

21、dl(Cp1=Cp3)e ndl;6-1#in cludeusing n amespace std;class Complexfloat real,image;public:Complex(float x,float y):real(x),image(y)Complex()Complex operator +(Complex &a)retur n Complex(real+a.real,image+a.image);Complex operator -(Complex &b)return Complex(real-b.real,image-b.image);friend ostream & o

22、perator (ostream &output,Complex &c) output(c.real,c.image);return output;void mai n()Complex Cp1(1,-2),Cp2(2,5),Cp3,Cp4;Cp3=Cp1+Cp2;Cp4=Cp1-Cp2; coutCp1+Cp2=Cp3e ndl Cp1-Cp2=Cp4e ndl;6-2#in cludeusing n amespace std;class computerfloat x,y;public:computer(float a=0,float b=0):x (a) ,y(b)computer op

23、erator +();computer operator -();computer operator +(i nt);computer operator -(i nt);void show()cout( x , y )=( x , y )e ndl;computer computer:operator +()retur n computer(+x,+y);computer computer:operator -()return computer(_x,_y);computer computer:operator +(i nt)computer temp;temp.x=x+;temp.y=y+;

24、return temp;computer computer:operator -(i nt)computer temp;temp.x=x-;temp.y=y_;return temp;void mai n()computer a(1,1),b(2,2),c,d;couta :;a. show();coutb :;b. show();coute ndl;c=a+;coutc = a+n;coutc :;c. show();coute ndl;d=+b;coutd = +bn;coutd :;d. show();coutNew a and b :n;a. show();b. show();cout

25、e ndl;c=a-;coutc = a-n;coutc :;c. show();coute ndl;d=_b;coutd = -bn;coutd :;d. show();coutNew a and b :n;a. show();b. show();6-3#in clude#in cludeclass stri ngchar *xstri ng;public:stri ng(char *str);stri ng();string &operator=(const string &); void prin t();stri ng:stri ng(char *str)xstri ng=new ch

26、ar strle n( str)+1; strcpy(xstri ng,str);stri ng:stri ng()delete xstri ng;void stri ng:pri nt()coutxstri nge ndl;int mai n()stri ng s1(hello);stri ng s2(ya ngche nhua n); s2.pri nt();s2=s1;cout修改后：;s2.pri nt();return 0;string & string :operator=(const string &s)if(this=&s)return *this;delete xstri n

27、g;xstring=new char strlen(s.xstring)+1;strcpy(xstri ng,s.xstri ng);return *this;6-4#in clude #in clude using n amespace std;class String public:String() p=NULL;Strin g(char *str);friend bool operator=(String &string1,String &string2); void display();private:char *p; ;Strin g:Stri ng(char *str) p=str

28、; void Strin g:display() coutp; II 输出P所指向的字符串bool operator=(String &string1,String &string2) if(strcmp(stri ng1.p,stri ng2.p)=0)return true;elsereturn false; void compare(String &string1,String &string2)if(operator=(stri ng1,stri ng2)=0) stri ng1.display();cout=;stri ng2.display();else couterror!e n

29、dl;int mai n() Stri ng stri ng1(Hello),stri ng2(chi na);compare(stri ng1,stri ng2);return 0;6-5#in clude#in cludeusing n amespace std;class Stringchar *p;public:Stri ng()p=NULL;Strin g(c onst char *s)p=new char(strle n( s)+1);strcpy(p,s);char * operator +(c onst char *s)char *temp=new char(strle n(

30、p)+strle n( s)+1); strcpy(temp,p);strcat(temp,s);return temp;friend bool operator =(c onst String &a,c onst String &b) return (!strcmp(a.p,b.p);friend ostream &operator (ostream &output,c onst String &d) outputd.p;retur n output;void mai n()Stri ng Str1(Malagebi!),Str2(Ready,Go!),Str3;Str3=Str1+ ni

31、shi;coutStr3e ndl(Str1=Str2)e ndl;7-1#in cludeusing n amespace std;class Carint wnum;float weight;public:Car(i nt a,float b):w nu m(a),weight(b)void Cshow()cout轮子个数：wnum个endl车重：weight Te ndl;class SmallCar:private Carint s_cnum;public:SmallCar(i nt a,float b,i nt c):Car(a,b),s_cnum(c)void Sshow()Csh

32、ow();cout载客量：s_cnum 人次endl;class BigCar:private Carint b_cnum;float b_cweight;public:BigCar(int a,float b,int c,float d):Car(a,b),b_cnum(c),b_cweight(d)void Bshow()Cshow();cout载客量： b_cnum人 次endl载重量 b_cweightTe ndl;int mai n()Car car(4,8);SmallCar smallcar(8,16,8);BigCar bigcar(16,32,16,32);cout汽车：en

33、dl;car.Cshow();coutn 小车：e ndl;smallcar.Sshow();coutn 卡车：e ndl;bigcar.Bshow();return 0;7-2#in clude#in cludeusing n amespace std;class Shapefloat x,y;public:Shape(float a,float b):x(a),y(b)void show()cout左上角坐标(x,y)= (x,y)n;virtual float GetArea()=0;class Rec:virtual public Shapefloat high,width;publi

34、c:Rec(float a,float b,float c,float d):Shape(a,b),high(c),width(d) void show()cout矩形：n;Shape:show();cout矩形宽、高：width highendl;float GetArea()show();return high*width;class Ell:virtual public Shapefloat xx,yy;public:Ell(float a,float b,float c,float d):Shape(a,b),xx(c),yy(d)void show()cout椭圆：n;Shape:s

35、how();cout椭圆 x 轴，y 轴：xx yyendl;float GetArea()show();return 4*ata n(1)*xx*yy;int mai n()Rec rec(5,5,5,5);Ell ell(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; return 0;7-3#in clude #in clude using n amespace std;class mammal int m;public:mammal(i nt i=0)

36、:m(i)coutmammal is con structe ndl;mammal()coutmammal is destructive ndl;class cat:public mammalint c;public:cat( int j=0):c(j)cout cat is con structe ndl;cat()coutcat is destructive ndl;；class dog:public mammalint d;public:dog(int k=O):d(k)cout dog is con structe ndl;dog()coutdog is destructe ndl;int mai n()cat c;dog d;return 0;7-4p39.78-1#in cludeusing n amespace std;template double sum(T1 a,T2 b)return (a+b);void mai n()coutsum(1,3)e ndl;coutsum(1.2,3)e ndl;coutsum(1,3.1)e ndl; coutsum(1.2,3.34)e ndl;8-2P 课本 179118-3#in cludeusing n amespace std;con st int M=100;template class