c++题库编程题

1、/2-5#include<iostream>#include<string>#include<math.h>using namespace std;class Triangle int a,b,c;public: double Area() double s=(a+b+c)/2; return sqrt(s*(s-a)*(s-b)*(s-c); ; int Perimeter() return a+b+c; void Input() cin>>a>>b>>c; ; void main() Triangle t1; t1.I

2、nput(); cout<<t1.Area()<<" "<<t1.Perimeter(); /2-3#include<iostream.h>inline int max(int a,int b)if(a>b)return a;else return b;inline int max(int a,int b,int c)return max(a,max(b,c);void main()int x=21,y=15,z=22,d;d=max(x,max(y,z);cout<<d;/2-4#include<io

3、stream.h>int overload(int n);char overload(char n);void main()int n;char s;cout<<"输入5"cin>>n;cout<<"n="<<overload(n)<<endl;cout<<"输入a"<<endl;cin>>s;cout<<"a="cout<<overload(s)<<endl;int overl

4、oad(int n)return n;char overload(char n)cout<<"b"<<endl;return 0;/2-2#include"iostream"using namespace std;inline char trans(char ch);int main()char ch;while(ch=getchar()!='n')cout<<trans(ch);cout<<endl;return 0;inline char trans(char ch)if(ch>=

5、'a'&&ch<='z')return ch-32;else return ch+32;/3-1#include<iostream>using std:cout;using std:endl;int Min(int a,int b)return (a<b?a:b);int Min(int a,int b,int c)return (Min(a,b)<c?Min(a,b):c);int Min(int a,int b,int c,int d)return (Min(a,b,c)<d?Min(a,b,c):d);v

6、oid main(void)cout<<"MIN(1,2)="<<Min(1,2)<<endl;cout<<"MIN(3,4,5)="<<Min(3,4,5)<<endl;cout<<"MIN(4,5,6,7)="<<Min(4,5,6,7)<<endl;/3-2#include<iostream>using namespace std;void Area(float r)cout<<"the

7、circle's area is: "<<3.14*r*r<<endl;void Area(float a,float b)cout<<"the rectangle's(square's) area is: "<<a*b<<endl;void Area(float a,float b,float h)cout<<"the trapzoid's area is: "<<(a+b)*h/2<<endl;void main(

8、)Area(5);Area(3,3);Area(3,5,4);/3-3#include<iostream>using namespace std;void Sort(int a,int n)bool flag;for(int i=0;i<n-1;i+)flag=false;for(int j=1;j<n-i;j+)if(aj-1>aj)int temp=aj-1;aj-1=aj;aj=temp;flag=true;if(!flag)break;for(int m=0;m<n;m+)cout<<am<<' 'cout&l

9、t;<endl;void Sort(float b,int n)bool flag;for(int i=0;i<n-1;i+)flag=false;for(int j=1;j<n-i;j+)if(bj-1>bj)float temp=bj-1;bj-1=bj;bj=temp;flag=true;if(!flag)break;for(int m=0;m<n;m+)cout<<bm<<' 'cout<<endl;void main()int a10=3,5,1,2,9,0,8,6,4,7;float b10=0.1,

10、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#include<iostream>using namespace std;class Rectanglefloat a,b;public:Rectangle()cout<<"input the two side of the rectangle:"<<endl;cin>>a>>b;Rectangle(float x,float y):a(x),b(y)float Cir()return (2

11、*(a+b);float Area()return (a*b);void main()Rectangle Re;cout<<"the rectangle's circumference is:"<<Re.Cir()<<endl<<"the rectangle's area is:"<<Re.Area()<<endl;/3-5#include<iostream>using namespace std;class Circlefloat r;public:Ci

12、rcle()cout<<"input the radius of the circle:"<<endl;cin>>r;Circle(float x):r(x)float Cir()return 2*3.14*r;float Area()return 3.14*r*r;void main()Circle C(5);cout <<"the Circle's circumference is:"<<C.Cir()<<endl<<"the Circle'

13、s Area is:"<<C.Area()<<endl;/4-1class studentint no;char name20;public:student();int getno()const; char*getname();#include<string.h>student:student()no=1;strcpy(name,"wang");int student:getno ()constreturn no; char*student:getname()return name;int main()student s1;s1

14、.getno();s1.getname();const student s2;s2.getno();return 0;/4-3#include<iostream.h>class objectfloat a;float weight;public:object(float w);object()cout<<"destruct weight"<<endl;class box:public objectfloat b;float height,widt;public:box(float w,float h,float wi):object(w)

15、,height(h),widt(wi)cout<<"construct height"<<endl;cout<<"construct widt"<<endl;box()cout<<"destruct height"<<endl;cout<<"destruct widt"<<endl;object:object(float w)weight=w;cout<<"construct weight"

16、;<<endl;int main()box b(1.1,2.2,3.3);return 0;/4-4#include"iostream"using namespace std;class baseclasspublic:baseclass()cout<<"a.c"<<endl;virtual baseclass()cout<<"a.d"<<endl;class derivedclass:public baseclasspublic:derivedclass()cout<

17、<"b.c"<<endl;derivedclass()cout<<"b.d"<<endl;int main()derivedclass obj;baseclass *p;p=&obj;return 0;/4-5#include"iostream"#include<string.h>using namespace std;class Doumentchar *name;public: Doument(char *na)name=new char strlen (na)+1;s

18、trcpy(name,na); virtual void print() const cout<<"姓名："<<name<<endl;class Book:public Doumentint pagecount;char *name;public:Book(int p,char *na):Doument(na)p=pagecount; name=new char strlen (na)+1; strcpy(name,na);void print() const cout<<"页码:"<<page

19、count<<"姓名:"<<name<<endl;void disp(Doument& i)i.print();int main()Book b(23,"小明");disp(b);return 0;/5-1#include"iostream"using namespace std;class pointprivate:int x;int y;int z;static int num;public:point(int a,int b,int c);int print();int point:n

20、um=0;int main()point p1(1,2,3);p1.print();point p2(5,3,2);p1.print();point p3(3,6,4);p1.print();return 0; point:point(int a,int b,int c)x=a;y=b;z=c;num+; int point:print()cout<<"第"<<num<<"个点"<<x<<","<<y<<","<<z&l

21、t;<endl;return 0;/5-2#include<iostream>#include<cstring>using namespace std;class Stuchar name15;int age;float score;public:static int count;static float sum;Stu(char *p,int a,float s):age(a),score(s)strcpy(name,p);count+;sum+=score;Stu()cout<<"input the student's name,

22、age,score:"<<endl;cin>>name>>age>>score;count+;sum+=score;int Stu:count=0;float Stu:sum=0;void main()Stu p("子机",19,98),q;cout<<"the number of students is: "<<Stu:count<<endl<<"the total score is: "<<Stu:sum<&

23、lt;endl;/5-3#include<iostream>using namespace std;class Pointfloat x,y,z;public:Point(float a=0,float b=0,float c=0):x(a),y(b),z(c)Point operator +();Point operator -();Point operator +(int);Point operator -(int);void show()cout<<"( x , y , z ) = "<<"( "<<

24、x<<" , "<<y<<" , "<<z<<" )"<<endl;Point Point:operator +()return Point(+x,+y,+z);Point Point:operator -()return Point(-x,-y,-z);Point Point:operator +(int)Point temp;temp.x=x+;temp.y=y+;temp.z=z+;return temp;Point Point:operator -(int

25、)Point temp;temp.x=x-;temp.y=y-;temp.z=z-;return temp;void main()Point a(1,1,1),b(2,2,2),c,d;cout<<"a :"a.show();cout<<"b :"b.show();cout<<endl;c=a+;cout<<"c = a+n"cout<<"c :"c.show();cout<<endl;d=+b;cout<<"d = +b

26、n"cout<<"d :"d.show();cout<<"New a and b :n"a.show();b.show();cout<<endl;c=a-;cout<<"c = a-n"cout<<"c :"c.show();cout<<endl;d=-b;cout<<"d = -bn"cout<<"d :"d.show();cout<<"New a

27、 and b :n"a.show();b.show();/5-4#include<iostream>using namespace std;class Complexfloat real,image;public:Complex(float a,float b):real(a),image(b)Complex()friend bool operator =(Complex &x,Complex &y)return (x.real=y.real&&x.image=y.image);void main()Complex Cp1(1,2),Cp2

28、(3,4),Cp3(1,2);cout<<(Cp1=Cp2)<<endl<<(Cp1=Cp3)<<endl;/6-1#include<iostream>using namespace std;class Complexfloat real,image;public:Complex(float x,float y):real(x),image(y)Complex()Complex operator +(Complex &a)return Complex(real+a.real,image+a.image);Complex ope

29、rator -(Complex &b)return Complex(real-b.real,image-b.image);friend ostream & operator <<(ostream &output,Complex &c)output<<'('<<c.real<<','<<c.image<<')'return output;void main()Complex Cp1(1,-2),Cp2(2,5),Cp3,Cp4;Cp3=Cp1+C

30、p2;Cp4=Cp1-Cp2;cout<<Cp1<<'+'<<Cp2<<'='<<Cp3<<endl<<Cp1<<'-'<<Cp2<<'='<<Cp4<<endl;/6-2#include<iostream>using namespace std;class computerfloat x,y;public:computer(float a=0,float b=0):x(a),

31、y(b)computer operator +();computer operator -();computer operator +(int);computer operator -(int);void show()cout<<"( x , y ) = "<<"( "<<x<<" , "<<y<<" )"<<endl;computer computer:operator +()return computer(+x,+y);comp

32、uter computer:operator -()return computer(-x,-y);computer computer:operator +(int)computer temp;temp.x=x+;temp.y=y+;return temp;computer computer:operator -(int)computer temp;temp.x=x-;temp.y=y-;return temp;void main()computer a(1,1),b(2,2),c,d;cout<<"a :"a.show();cout<<"b

33、 :"b.show();cout<<endl;c=a+;cout<<"c = a+n"cout<<"c :"c.show();cout<<endl;d=+b;cout<<"d = +bn"cout<<"d :"d.show();cout<<"New a and b :n"a.show();b.show();cout<<endl;c=a-;cout<<"c = a-n&q

34、uot;cout<<"c :"c.show();cout<<endl;d=-b;cout<<"d = -bn"cout<<"d :"d.show();cout<<"New a and b :n"a.show();b.show();/6-3#include<iostream.h>#include<string.h>class stringchar *xstring;public: string(char *str); string()

35、; string &operator=(const string &);void print();string:string(char *str)xstring=new char strlen(str)+1;strcpy(xstring,str);string:string()delete xstring;void string:print()cout<<xstring<<endl;int main()string s1("hello");string s2("yangchenhuan");s2.print();s

36、2=s1;cout<<"修改后："s2.print();return 0;string & string :operator=(const string &s)if(this=&s)return *this;delete xstring;xstring=new char strlen(s.xstring)+1;strcpy(xstring,s.xstring);return *this;/6-4#include <iostream>#include <string>using namespace std;class

37、 String public:String() p=NULL;String(char *str);friend bool operator=(String &string1,String &string2);void display();private:char *p; ;String:String(char *str) p=str; void String:display() cout<<p; /输出P所指向的字符串bool operator=(String &string1,String &string2) if(strcmp(string1.p

38、,string2.p)=0) return true; else return false; void compare(String &string1,String &string2) if(operator=(string1,string2)=0) string1.display(); cout<<"=" string2.display(); else cout<<"error!"<<endl; int main() String string1("Hello"),string2(

39、"china"); compare(string1,string2); return 0; /6-5#include<cstring>#include<iostream>using namespace std;class Stringchar *p;public:String()p=NULL;String(const char *s)p=new char(strlen(s)+1);strcpy(p,s);char * operator +(const char *s)char *temp=new char(strlen(p)+strlen(s)+1)

40、;strcpy(temp,p);strcat(temp,s);return temp;friend bool operator =(const String &a,const String &b)return (!strcmp(a.p,b.p);friend ostream &operator <<(ostream &output,const String &d)output<<d.p;return output;void main()String Str1("Malagebi!"),Str2("Re

41、ady,Go!"),Str3;Str3=Str1+"nishi"cout<<Str3<<endl<<(Str1=Str2)<<endl;/7-1#include<iostream>using namespace std;class Carint wnum;float weight;public:Car(int a,float b):wnum(a),weight(b)void Cshow()cout<<"轮子个数： "<<wnum<<" 个&

42、quot;<<endl<<"车重： "<<weight<<" T"<<endl;class SmallCar:private Carint s_cnum;public:SmallCar(int a,float b,int c):Car(a,b),s_cnum(c)void Sshow()Cshow();cout<<"载客量： "<<s_cnum<<" 人次"<<endl;class BigCar:privat

43、e 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_cweight<<" T"<<endl;int main()Car car(4,

44、8);SmallCar smallcar(8,16,8);BigCar bigcar(16,32,16,32);cout<<"汽车： "<<endl;car.Cshow();cout<<"n小车： "<<endl;smallcar.Sshow();cout<<"n卡车： "<<endl;bigcar.Bshow();return 0;/7-2#include<iostream>#include<cmath>using namespace s

45、td;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;public:Rec(float a,float b,float c,float d):Shape(a,b),h

46、igh(c),width(d)void show()cout<<"矩形 ： n"Shape:show();cout<<"矩形宽、高： "<<width<<' '<<high<<endl;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),

47、yy(d)void show()cout<<"椭圆 ： n"Shape:show();cout<<"椭圆x轴，y轴： "<<xx<<' '<<yy<<endl;float GetArea()show();return 4*atan(1)*xx*yy;int main()Rec rec(5,5,5,5);Ell ell(8,8,12,10);Shape *s;s=&rec;cout<<"矩形的面积： "<<s->

48、GetArea()<<endl<<endl;s=&ell;cout<<"椭圆的面积： "<<s->GetArea()<<endl<<endl;return 0;/7-3#include <iostream>/#include <string>using namespace std;class mammal int m;public:mammal(int i=0):m(i)cout<<"mammal is construct"<&

49、lt;endl;mammal() cout<<"mammal is destruct"<<endl;class cat:public mammal int c;public:cat(int j=0):c(j)cout<<" cat is construct"<<endl;cat() cout<<"cat is destruct"<<endl;class dog:public mammal int d;public:dog(int k=0):d(k)cout<

50、<" dog is construct"<<endl;dog() cout<<"dog is destruct"<<endl;int main()cat c;dog d; return 0;/7-4p39.7/8-1#include<iostream>using namespace std;template <class T1,class T2>double sum(T1 a,T2 b)return (a+b);void main()cout<<sum(1,3)<<

51、endl;cout<<sum(1.2,3)<<endl;cout<<sum(1,3.1)<<endl;cout<<sum(1.2,3.34)<<endl;/8-2P课本179/8-3#include<iostream>using namespace std;const int M=100;template <class T>class ArrayT arrayM;int len;public:Array();void sort();void search()cout<<"the num you want to search is : "T x;cin>>x;for(int i=0;i<len;i+)if(x=arrayi)cout<<"nthe