C++面向对象大题

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1.编写一个函数，用来实现对3个数按由小到大的顺序排序，并在主函数中调用此函数。要求函数的形参用以下两种形式实现：（1）使用指针形参（2）使用引用形参(1)#includevoidswap(int*,int*,int*);voidmain(){inta,b,c;cout<<"请输入三个正整数"<>a>>b>>c;swap(&a,&b,&c);cout<<"a="<*y)if(*x>*z)if(*y>*z){{{t=*x;t=*x;t=*y;*x=*y;*x=*z;*y=*z;*y=t;*z=t;*z=t;}}}}(2)#includevoidmain(){inta,b,c;cout<<"请输入三个正整数"<>a>>b>>c;swap(a,b,c);cout<<"a="<y)if(x>z)if(y>z){{{t=x;t=x;t=y;x=y;x=z;y=z;y=t;z=t;z=t;}}} }2.使用重载函数求不同类型（int、double）的三个数的最大值（含缺省参数的函数）#includeintswap(int,int,int=84);doubleswap(double,double,double);voidmain(){cout<usingnamespacestd;templateTmax(Ta,Tb,Tc){if(a，采用直接插入排序方式对数据进行排序，并对整数序列和字符序列排序。#includeusingnamespacestd;templatevoidbubble(T*item,intn){Tt;for(inti=1;i=i;j--)if(item[j-1]>item[j]){t=item[j-1];item[j-1]=item[j];item[j]=t;}}intmain(){chars[]="myfriend";bubble(s,strlen(s));cout<<"Thesortedstringis:"<#includeclassStudent{private:charnumber[80];charname[80];intage;public: voidsetvalue(char*nu,char*na,intag){strcpy(number,nu);strcpy(name,na);age=ag;}voidprint(){cout<#includeusingnamespacestd;classGraph{protected:intheight,width;public:Graph(inthei,intwid){height=hei;width=wid;}};classRectangle:publicGraph（继承） {public:Rectangle(inthei,intwid):Graph(hei,wid){}intarea(){returnheight*width;}voidprint(){cout<#includeusingnamespacestd;classCPeople{protected:stringname;charsex;intage;public:CPeople(char*na,chars,intag):name(na),sex(s),age(ag){cout<<"调用cpeople构造函数"< #include#includeusingnamespacestd;classStud{private:stringno;stringname;doublescore;staticdoublesum;staticintnum;public:Stud(){no="";name="";score=0;sum=0;num=0;}voidsetdate(){stringn;stringna;doublesc;cin>>n>>na>>sc;no=n;name=na;score=sc;}voiddisp(){cout<>size;Stud*s=newStud[size];assert(s!=NULL);for(inti=1;i<=size;i++){ s[i].setdate();};for(i=1;i<=size;i++){s[i].disp();};s[i].avg();}9.设计一个学生类student,包括姓名和三门课程成绩，利用重载运算符”+“将所有学生的成绩相加放在一个对象中，再对该对象求各门课程的平均分。#include#includeclassstudent{charname[10];intdeg1,deg2,deg3;public:student(){}student(charna[],intd1,intd2,intd3){strcpy(name,na);deg1=d1;deg2=d2;deg3=d3;}friendstudentoperator+(students1,students2){staticstudentst;st.deg1=s1.deg1+s2.deg1;st.deg2=s1.deg2+s2.deg2;st.deg3=s1.deg3+s2.deg3;returnst;}voiddisp(){cout<usingnamespacestd;classSquare{protected:doublea;public:Square(doubleaa):a(aa){}virtualdoublearea(){returna*a;}};classCuboid:publicSquare{protected:doubleb;public:Cuboid(doubleaa,doublebb):Square(aa),b(bb){}doublearea(){returna*a*b;}};voidmain(){Squares(3);Square*sq;Cuboidc(3,8); sq=&s;sq->area();cout<area();cout<