C++机试答案.doc

10书名：C+语句。(1)Book(const char *theTitle, int pages) : num_ pages(pages) (2)void openAtPage(int page_no) /把书翻到指定页 (3)cur_page = 0;办公室房间号308(1)return length * width; (2)Room(the room_no, the_length, the_width) (3)depart, the_depart (4)an office(308,5.6,4.8,会计科Hello！length = otherString.length; setString(otherString.sPtr); return *this;11constructor called(1)MyClass(int i = 10) (2)MyClass(const MyClass & p) (3)MyClass()12345 2345634567(1)getElement(i, j) (2)MatrixBase(rows, cols) (3)new doublerows*cols (4)r = c两个数据表for( int i=0; i color = color; (2)const char getName() const return *name; (3)Dog dog1(Hoho, WHITE), dog2(Haha, BLACK), dog3(Hihi, OTHER);(1)const Point& p (2)p1(p1), p2(p2) (3)Point p1, Point p2, Point p3 (4)(length1() + length2() + length3()/2for(int i = 0; i len; +i) for(int j = i; j dj) int temp = di; di = dj; dj = temp; 13(1)Line(double x1, double y1, double x2, double y2) (2)cout ),length = length(*this) 。 endl; (3)return sqrt(l.getX1() - l.getX2() * (l.getX1() - l.getX2() + (l.getY1() - l.getY2() * (l.getY1() - l.getY2();【参考答案】 (1)getElement(length()-1) (2)delete val (3)s += vali (4)return 0.0;for( int i = 0; i len; +i) if (data i; k-) ddk = dk-1; ddi = data; for (int j = 0; j i; j+) j = dj; delete d; d = new doublelen; for (int index = 0; index len; +index) dindex = ddindex; delete dd; break; 14 (1)char *Name; (2)StudentInfo() (3)StudentInfo:StudentInfo(char *name, int age, int ID, int courseNum, float record)【参考答案】 (1)MaxSpeed(maxspeed), Weight(weight) ; (2)virtual (3)virtual (4)public bicycle, public motorcar【参考答案】 n = r.n; delete p; p = new intn; for (int i = 0; i n; i+) pi = r.pi; return *this;15 (1)MyClass(int val) : N(1) (2)MyClass() delete p; (3)void print(MyClass & obj)【参考答案】 (1)virtual void print() const = 0 (2)Component* child (3)cout Leaf Node endl; 【参考答案】 int temp = 0; for (int i = 0; i M; i+) for (int j = 0; j N; j+) if (temp num = num; (2)if(!closed) (3)void lock()【参考答案】 (1)is_male(is_male), birth_date(birth_date) (2)return strcmp(name, p.getName(); (3)birth_date.getMonth() 月【参考答案】 for (int i = 0; i counter; i+) if (element = elemi) for (int j = i; j counter-1; j+) elemj = elemj+1; counter-; return; 17 (1)TVSet(int size) : size(size) (2)void turnOnOff() (3)cout规格: getSize()英寸【参考答案】 (1)x1(root), x2(root), num_of_roots(1) (2)cout 无实根 ; break; (3)a(a), b(b), c(c) (4)return Quadratic(a - x.a, b - x.b, c - x.c);【参考答案】 for (int i = 0; i i; j-) if (elemi elemj) int temp = elemi; elemi = elemj; elemj = temp; 18【参考答案】 (1)int Foo:y_= 42; (2)Foo f(a); (3)cout X = f.getX() endl; 【参考答案】 (1)point.getX() + width, point.getY() + height (2)radius * radius (3)center.getX() - radius, center.getY() - radius (4)2 * radius;【参考答案】 int length = strlen(str); for (int i = 0, j = length -1; i j; i+, j-) char temp = stri; stri = strj; strj = temp; 【参考答案】 int length = strlen(str); for (int i = 0, j = length -1; i type = type; (2)delete name; (3)strcpy(this-name,); 【参考答案】 (1)virtual int area(void) = 0; (2)area() (3)length * height (4)CPolygon【参考答案】 size = other.size; v = new intsize; for (int i = 0; i x=x,this-y=y; (2)void show() const cout ( x , ynext = top;【参考答案】 for (int i = 0; i =1 & inten = 3) intensity = inten;【参考答案】 (1)strcpy(brand, the_brand); (2)number = new charstrlen(the_number) + 1; (3)theBrand() (4)const return 卡车; /返回汽车类别【参考答案】 int min = x.a x.b ? x.a : x.b; for (int i = 2; i = min; i+) if (x.a%i = 0 & x.b%i = 0) return i; return -1;22 (1):base(the_base), bonus(the_bonus), tax(the_tax) (2)Salary() delete staff_id; (3)cout实发工资:pay.getNetPay()office, office); (2)return office (3)dept(my_dept) (4)dept.changeOfficeTo(311);【参考答案】 if (income lower limitsi) tax payable += (taxable - lower limitsi)*ratesi; taxable = lower limitsi; 23 (1)ABC() : a(0), b(0), c(0) (2)int s1 = x.Sum() + y.Sum(); (3)int s2 = s1 + w-Sum();【参考答案】 (1)public Base (2)Base:sum() (3)Derived: (4)Base(m1, m2)【参考答案】 for (int i = 0, j = m-1; i j; i+, j-) Type temp = ai; ai = aj; aj = temp; 24【参考答案】 (1)strcpy(student_id,the_id); (2)const char *getID()const return student_id; /返回学号 (3)int Score:getFinal() const 【参考答案】 (1)strcpy(classroom, room); (2)return classroom; (3)my_class(the_class) (4)cla.changeRoomTo(311);【参考答案】 for (int i = 1; i 0) x value *= x; j-; value += coefi*x value; 25【参考答案】 (1)void Clock:print() const (2)set(+total_sec); (3)return *this;【参考答案】 (1)charstrlen(str) + 1; (2)Mammal(str) (3)return outputMOUSE; (4)Elephant 【参考答案】 sListItem* temp = new sListItem; temp-data = c; temp-next = h; h = temp;26【参考答案】 (1)public: (2)SetDate(d,m,y); (3)cout m_nYear - m_nMonth - m_nDay; 【参考答案】 (1)name_(name), dept_(dept) (2)return dept_; (3)Employee(name, dept), level_(level) (4)Employee:print(); 【参考答案】 (1)cout firstname surname (2)headi = starti (3)return new Name2(s); else return new Name1(s)27【参考答案】 (1)public: (2)for(int i=0; in; i+) ai=aai; (3)for(int i=0; iimagPart + otherComplex.imagPart; sum.realPart = this-realPart + otherComplex.realPart28 (1)delete array; (2)cout arrayiname,name); (2)PetType getType() const return type; (3)return an unkown animal;【参考答案】 (1)item _size【参考答案】 void doc:count() for (int i = 0; i =a&striA&stri=Z) counerstri-A+; for (int index = 0; index 26; +index) cout (char)(index + 65) or (char)(index + 97) 出现的次数是: counterindexlink = head (2)p = new node (3)Insert(p)【参考答案】 for (int i = 0; i size-1; i+) int temp = vi; vi = vi+1; vi+1 = temp; 34 (1)MyClass() (2)int value; (3)void MyClass:Print() const【参考答案】 (1)virtual const char* toString()const = 0 (2)HexNumber(int k) : Number(k) (3)cout number.toString() (4) show(HexNumber(11) 【参考答案】 MiniString( const char *s = ) length = strlen(s); sPtr = new charlength+1; strcpy(sPtr, s); MiniString() delete sPtr; 35 (1)Circle(int r) : radius(r) (2)void Circle:Display() (3)c.Display();【参考答案】 (1)x = y (2)Sort(a0, n0) (3)swap(aj, aj-1) (4)break 【参考答案】 MiniString& operator+=(const MiniString& s) char *pt = new char length+1; strcpy(pt, sPtr); int blength = length; length += s.length; delete sPtr; sPtr = new charlength+1; strcpy(sPtr,pt); delete pt; for (int i = 0; i Set (i + 1); (3)delete ptr; 【参考答案】 (1)strlen(s) + 1 (2)delete m_str (3)m_strn-i-1 (4)m_strn-i-1 = tmp【参考答案】 MiniString& operator+ (const MiniString& s) char *pt = new char length+1; strcpy(pt, sPtr); int blength = length; length += s.length; delete sPtr; sPtr = new charlength+1; strcpy(sPtr,pt); delete pt; for (int i = 0; i length; +i) sPtrblength+i = s.sPtri; return *this; 37 (1)Rectangle(double x1, double y1, double x2, double y2) (2)void show(Rectangle r) (3)cout r.getX1() , r.getY1() ),down right=( r.getX2() , value = value; (2)MyClass() (3)int MyClass:count = 0;【参考答案】 (1)virtual void draw() const =0; (2)const Point& pt (3)double x_, y_; (4)x_ , y_【参考答案】 for(int i = 0; i M; i+) for(int j = 0; j i; j+) int temp = arrayij; arrayij = arrayji; arrayji = temp; 39【参考答案】 (1)char *Name; (2)StudentInfo(char *name, int age, int ID, int courseNum, float record); (3)StudentInfo() delete Name; 【参考答案】 (1)virtual (2)virtual (3)itsLength(len), itsWidth(width) (4)Shape* sp;【参考答案】 n = r.n; p = new intn; for (int index = 0; index = 0; i-) if (elemi 0) for (int j = i; j size) return false; for (int i = 0; i print();【参考答案】 (1)ints; (2)delete a; (3)anum (4)return ai;【参考答案】 if (str = NULL) return 0; int counter = 1; int length = strlen(str); for (int i = 0; i length; i+) if (isspace(stri) counter+; return counter;44 (1)bool isOn()const return intensity=1; /返回电源开关状态 (2)void turnOff() intensity=0; /关电扇 (3)intensity = inten;【参考答案】 (1)num_pages(pages) (2)writer = new charstrlen(the_writer) + 1; (3)Book(the_title, pages, the_writer) (4)a_book.theCourse(); 【参考答案】 for (int i = 0; i = end; i+) ai = elementi; size+; for (int k = 0; k = set.GetEnd(); k+) if (!IsMemberOf(set.GetElement(k) asize+ = set.GetElement(k);45 (1)title = new charstrlen(theTitle) + 1; (2)bool isOpen()const return cur_page != 0; /书打开时返回true,否则返回false (3)cur_page = 0; 【参考答案】 (1)brand = new charstrlen(the_brand) + 1; (2)strcpy(number, the_number); (3)category() (4)AutoMobile:show();【参考答案】 int s size = strlen(s); for (int i = 0; i next;(3)top+ (4)top-data;【参考答案】 if (end set.GetEnd() return false; for (int i = 0; i = set.GetEnd(); i+) if (!IsMemberOf(set.GetElement(i) return false; return true;47【参考答案】 (1)int val; (2)MyClass(int x) : data(x) (3) cout The value of member object is data.GetData() endl; 【参考答案】 (1)arri = sqr%10; (2)k *= 10; (3)n*n = rqs【参考答案】 Matrix m; for (int i = 0; i M; i+) for (int j = 0; j