C_编程题库(一)

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1、31.定义盒子Box类,要求具有以下成员:长、宽、高分别为x,y,z,可设置盒子形状;可计算盒子体积;可计算盒子的表面积。ttinclude #include using namespace std;class Boxpublic:int weight;int length;int hight;void box_shape(int w, int 1, int h);int box_volume(int w, int 1, int h);int box_area(int w, int 1, int h);)；int main()(Box mybox;cout z Please Enter wei

2、ght and length and hight:，z;cin mybox. weight mybox. length mybox. hight;int box_v, box_a;mybox. box_shape(mybox. weight, mybox.length, mybox. hight);box_v = mybox. box_volume(mybox. weight, mybox. length, mybox. hight);cout z，rFhis box, s volume =“ box_v endl;box_a = mybox. box_area(mybox. weight,

3、mybox. length, mybox. hight);cout This box s area = box_a endl;void Box:box_shape(int w, int 1, int h)if(w =1&1= h)cout This is a Cube! endl;elsecout This is a cuboid! endl;)int Box:box_volume(int w, int 1, int h)(return w * J.* h;)int Box:box_area(int w, int 1, int h)return 2*w*l+2*l*h+2*w*h;32.有两个

4、长方柱,其长、宽、髙分别为:(1)30,20,10；(2)12,10,20。分别求他们的体积。编一个基于对象的程序,在类中用带参数的构造函数。#include class Boxprivate:int length;int weight;int hight;public:Box(int, int, int);int volume (););int main()(using namespace std;Box myboxl (30,20,10);cout zThe first Box，s volume = myboxl. volume() endl;Box mybox2(12,10,30);co

5、ut z，The second Box，s volume = mybox2. volume () endl; return 0;)Box:Box(int 1, int w, int h)(length =1;weight = w; hight = h;)int Box:volume()return (hight * weight * length);33.有两个长方柱,其长、宽、高分别为:(1)12,20,25；(2)10,30,20。分别求他们的体积。编个基于对象的程序,且定义两个构造函数,其中一个有参数,个无参数。Sinclude class Boxprivate:int length;i

6、nt wight;int height;public:Box ()：Box (int, int, int);int volume ();；int main()(using namespace std;Box mybox1;cout The first boxs volume = myboxl. volume() endl;Box mybox2(10,30,20);cout The second box，s volume = mybox2, volume() endl;return 0;)Box:Box()(length =!2;wight =20;height =25;)Box:Box(int

7、 1, int w, int h)(length =1;wight = w;height = h;)int Box:volume()(return length * wight * height;)34 .声明一个类模板,利用它分别实现两个整数、浮点数和字符的比较,求出大数和小数。#include using namespace std; template class Compare public:Compare(numtype a,numtype b)x=a;y=b; numtype max()return (xy)?x:y; numtype min()return (xy)?x:y; pr

8、ivate: numtype x, y;)；int main()Comparecmp1(3,4);coutcmpl. max ()z， is the Maximum of two inteder numbers.，zendl;coutcmpl. min() “ is the Minimum Compare cmp2 (45. 78, 93. 6);coutcmp2. max() is the Maximum coutcmp2. min() is the Minimum Compare cmp31 a,A);coutcmp3. max() is the Maximum coutcmp3. min

9、 () is the Minimum return 0:of two inteder numbers. endlendl;of two float numbers. endl;of two float numbers. endlendl;of two characters. endl;of two characters. endl;35 .建立一个对象数组,内放5个学生的数据(学号、成绩),用指针指向数组首元素,输出第1,3,5个学生的数据。初值自拟。#includeusing namespace std;class Studentpublic:Student (int n, int s):n

10、um(n), score (s)void display()coutnumdisplay();return 0;36.建立一个对象数组,内放5个学生的数据(学号、成绩),设立一个函数max,用指向对象的指针作函数参数,在max函数中找出5个学生中成绩最高者,并输出其学号。初值自拟。#includeusing namespace std;class Student(public:Student (int n, int s):num(n), score(s)int num;int score;int main()(Studentstud5=Student(01,70), Student(02,71

11、), Student(03,72), Student(04,73),Student (05,74);void max(Student *);Student *p=&stud0;max (p);return 0;)void max (Student *arr)(float max_score=arr0. score;for(int i二;i5;i+)if(max_scorearri. score)max_score=arri. score;coutmax_scorearri. numendl;38.定义一个复数类Complex,重载运算符“+”,使之能用于复数的加法运算。将运算符函数重载为非成员

12、、非友元的普通函数。编写程序,求两个复数之和。初值自拟。#include class Complex private: double real; double image; public:Complex ();Complex(double, double);double get_real();double get_image ();)；Complex operator +(Complex &, Complex &);int main()(Complex si (3,4);Complex s2(5,-10);Complex c3;c3= si + s2;std:cout sl + s2=std:

13、cout ( c3. get_real (), c3. get_image()i) std:endl;/ Complex si (3,4);/ std:cout si. get_real() std:endl;return 0;)Complex:Complex(double r, double i)(real = r;image = i;)Complex:Complex()(real =0;image =0;double Complex:get_real()return real;double Complex:get_image()return image;)Complex operator

14、+(Complex & si, Complex & s2)(Complex c (si. get_real ()+ s2. get_real (), si. get_image ()+ s2. get_image(); return c;)39.定义个复数类Complex,重载运算符“+”，“一”,使之能用于复数的加,减运算,运算符重载函数作为Complex类的成员函数。编程序,分别求出两个复数之和,差。初值自拟。#include class Complexprivate:double real;double image;public:Complex ();Complex(double, do

15、uble);Complex operator +(Complex &);Complex operator -(Complex &);void display ();)；int main()(Complex si (3,4), s2(5,6), c;c = si + s2;c. display ();c = si - s2;c. display ();return 0;Complex:Complex()(real =0;image =0;)Complex:Complex(double r, double i)real = r;image = i;)Complex Complex:operator

16、 +(Complex & si)(Complex c;c. real = si. real + real;c. image = si. image + image;return c;)Complex Complex:operator -(Complex & si)(Complex c;c. real = real - si. real;c. image = image - si. image;return c;)void Complex:display()(using namespace std;cout real “ image endl;)40.定义个复数类Complex,重载运算符“十”

17、,使之能用于复数的加法运算。参加运算的两个运算量可以都是类对象,也可以其中有一个是整数,顺序任意。例如: cl+c2, i+cl, cl+i均合法(设i为整数,cl, c2为复数)。编程序,分别求两个复数之和、整数和复数之和。初值自拟。Sinclude class Complex(private:double real;double imag;public:Complex()real=0;imag=0;Complex(double r,double i)real=r;imag=i;Complex operator+(Complex &c2);Complex operator+(int &i);

18、friend Complex operator+(int&, Complex &); void display ();；Complex Complex:operator+(Complex &c)(return Complex(real+c. real, imag+c. imag);)Complex Complex:operator+(int &i)(return Complex(real+i, imag);)void Complex:display()using namespace std;cout”(real,imagi)endl;Complex operator+(int &i, Comp

19、lex &c)(return Complex(i+c. real, c. imag);)int main()(using namespace std;Complex cl (3,4), c2(5,-10), c3;int i=5;c3=cl+c2;coutcl+c2=;c3. display ();c3二i+cl;couti+cl=；c3. display ();c3=cl+i;cout“cl+i=”；c3. display ();return 0;41,有两个矩阵a和b,均为2行3列。求两个矩阵之和。重载运算符“+”,使之能用于矩阵相加。如c=a+b。初值自拟。ftinclude using

20、 namespace std;class Matrixpublic:Matrix();friend Matrix operator+(Matrix &, Matrix &);void input ();void display ();private:int mat 23;定义Matrix类默认构造函数重载运算符“ + ”输入数据函数输出数据函数Matrix:Matrix()for(int i=0;i2;i+)for(int j=0;j3;j+) matij=0;)Matrix operator+(Matrix &a, Matrix &b)Matrix c;for(int i=0;i2;i+)f

21、or(int j=0;j3;j+)c. mati j=a. mati j+b. mati j; return c;)void Matrix:input()cout input value of matrix: endl;for (int i=0;i2;i+)for(int j=0;j3;j+) cinmati j;)void Matrix:display()for (int i=0;i2;i+)for(int j=0;j3;j+)coutmatij ; coutendl;定义构造函数定义重载运算符“ + ”函数定义输入数据函数定义输出数据函数);int main()Matrix a, b, c

22、;a. input ();b. input ();coutendl“Matrix a:endl;a. display ();coutendlMatrix b:endl;b. display ();c=a+b;用重载运算符“+”实现两个矩阵相加coutendlMatrix c = Matrix a + Matrix b :endl;c. display ();return 0;)42 .将运算符“+”重载为适用于复数加法,重载函数不作为成员函数,而放在类外,作为Complex类的友元函数。初值自拟。#include class Compare private:int real;int imag;

23、public:Compare ();Compare(int, int);friend Compare operator+(Compare & cl, Compare & c2);void display ();)；int main()(Compare cl (3,4), c2(2,5), c3;c3= cl + c2;c3. display ();return 0;)Compare:Compare ()real =0;imag =0;Compare:Compare(int r, int i)(real = r;imag = i;)void Compare:display()(using nam

24、espace std;cout real ” imag i,用于两个字符串的大于的比较运算。初值自拟。ttinclude #include using namespace std; class String ( public:String() p=NULL;String(char *str);friend bool operator(String &stringl, String &string2);friend bool operator(String &stringl,String &string2)if (strcmp(stringl. p, string2. p)0) return t

25、rue;elsereturn false;)bool operator(String &stringl, String &string2)if (strcmp(stringl. p, string2. p)(stringl, string2)=1)(stringl. display();cout;string2 display();else if(operator(stringl, string2)=l)stringl.display();cout”;string2. display();)else if(operator=(stringl,string2)=1)(stringl.displa

26、y();cout=;string2. display();coutendl;int main()String stringl (Hello), string2(Book), string3(Computer),string4(Hello);compare(stringl, string2);compare(string2, strings);compare(stringl, string4);return 0;46 .定义个描述学生基本情况的类,数据成员包括姓名、学号、C+成绩、英语和数学成绩,成员函数包括输出数据,求出总成绩和平均成绩。数据自拟。#include class Student(

27、private:char * name;int id;int cpp_source;int eng_source;int math_source;public:Student (char *, int, int, int, int);void sum_source();void avg_source();)；int main()(Student s(John,1,90,80,97);s. sum_source ();s. avg source ();return 0;Student:Student(char * n, int i, int cs, int es, int ms)name = n

28、;id = i;cpp_source = cs;eng_source = es;math sourcems;void Student:sum_source()(std:cout name The sum of source: cpp_source+eng_source+math_source std:endl;)void Student:avg_source()(double avg;avg =(cpp_source + eng_source + math_source)/3;std:cout Fhe avg of source:”,使之能够用于输出以上类对象。ftinclude class

29、Pointprotected:int x, y;public:Point()x =0, y =0;Point(int a, int b)(this-x = a;this-y = b;void setX(int a)x = a;void setY(int b)y = b;int getX()return x;int getY()return y;)；class Circle:public Pointprotected:int r;public:Circle(int x, int y, int r):Point(x, y)this-r = r;void setR(int a)r = a;int g

30、etR()return r; class Cylinder:public Circle ( protected:int h;public:Cylinder ():Circle(0,0,0), h(0)Cylinder(int x, int y, int r, int h):Circle(x, y, r)this-h = h; void setH(int a)h = a; int getH()return h; friend std:istream & operator(std:istream &, Cylinder &); friend std:ostream & operator(std:i

31、stream & input, Cylinder & cc)int _x,_y,_r,一h;std:cout Enter the Cylinder: std:endl; input x _y _r _h;cc. setX(_x);cc. setY(_y);cc. setR(_r);cc. setH(_h);return input;)std:ostream & operator(std:ostream & os, Cylinder & cc)os cc. getX() cc. getY() cc. getRO cc. getH() std:endl; return os;)int main()

32、using namespace std;Cylinder cc; cin cc; cout cc;return 0;48 .写个程序,定义抽象类型Shape,由他派生三个类:Circle (圆形)，Rectangle (矩形)，Trapezoid (梯形),用个函数printArea分别输出三者的面积,3个图形的数据在定义对象是给定。ttinclude class Shape(public:virtual double area() const =0;);class Circle:public Shape(private:double r;public:Circle (double a):r

33、(a)virtual double area() const(return 3.14* r * r;);class Rectangle:public Shape(private:double h, w;public:Rectangle (double a, double b):h(a), w(b)virtual double area() const(return h * w;)；class Trapezoid:public Shape(private:double h, w;public:Trapezoid (double a, double b): h (a), w(b)virtual d

34、ouble area() constreturn 0.5* h * w;);void printArea(const Shape & c)(std:cout c.area() std:endl;)int main()Circle c(2);printArea (c);Rectangle r(2,4);printArea(r);Trapezoid t (3,5);printArea (t);return 0;)49,定义个人员类Cperson,包括数据成员:姓名、编号、性别和用于输入输出的成员函数。在此基础上派生出学生类CStudent (增加成绩)和老师类Cteacher (增加教龄),并实现

35、对学生和教师信息的输入输出。#include class Cperson(protected:char name10;int id;int sex;public:virtual void getlnfor()=0;virtual void printlnfor()=0;)；class CStudent:public Cpersonprotected:int course;public:virtual void getlnfor()using namespace std;cout Enterthestudentsinforamtion endl;cout Enterthename:;cin na

36、me ;cout Entertheid:cin id;cout Enterthesex (1 or01. men 0. women):;cin sex;cout Enterthecourse:cin course;virtual void printlnfor ()(using namespace std;cout id endl;cout name endl;cout sex endl;cout course endl;class Cteacher:public Cperson protected:int age;public:virtual void getlnfor()using nam

37、espace std;cout Enter cout Enter cin name ;cout Enter cin id;cout Enter cin sex;cout Enterthe teacher，s the name:;the id:;the sex (1 orthe age:;inforamtion endl;0 1. men 0. women):cin age;virtual void printlnfor()(using namespace std;cout id endl;cout name endl;cout sex endl;cout age endl;int main()

38、(CStudent stu; stu. getlnfor (); stu. printlnfor ();Cteacher tea; tea. getlnfor (); tea. printlnfor ();return 0;50.定义个学生类Student做基类,再派生一个Graduate类,学生类有学号、姓名、和分数,研究生增加工资,它们有同名的函数display。,利用虚函数,编程分别输出学生和研究生的数据,具体数据自拟。ttinclude ttinclude using namespace std;class Studentprotected:int id;string name;int

39、 score;public:Student (int ,string , int);virtual void display。;)；Student:Student(int i, string n, int cr)(id = i;name = n;score = cr;)void Student:display()(/using namespace std;cout id : name endl;cout score endl;class Graduate:public Student(protected: int salary;public:Graduate(int i, string n,

40、int cr, int sa):Student (i, n, cr), salary(sa) void display();)；void Graduate:display()(/using namespace std;cout id ： name endl;cout score endl; cout salary endl;)int main()(Student stu(l,John”,99);stu. display ();Graduate gra(2,JOHNLIU,100,5000);gra. display ()：return 0;二、第二类题目(40道,每题9分,请自行设计输出格式)

41、蒋玉金1-5题1 .输入20个学生成绩(设为int型),统计各分数段的人数,分数段为90及90以上、80到89分、70到79分、60到69分、60分以下。#includeint main ()int a20=55,66,77,88,99,54,64,74,84,94,56,66,76,86,96,60,70,80,90,85);int b, c, d, e, f ;b=c=d=e=f=0;for(int i二;i20;i+)if(ai=90)b+;else if(ai=80)C+；else if(ai=70)d+;else if(ai=60)e+;else f+;)coutb=bendl;co

42、ut“c=”cendl;coutd二”dendl;coute=eendl;cout“f二fendl;return 0;)2 .把有序的两个数组a和b合并,要求合并后数组依然有序,数据自拟。#includeint main ()int i=0;int j=0;int k二;int c7;int a4=2,3,5,8;int b3=l,4,6;while(i4&j3)if (aibj) ck+=ai+;else ck+二bj+;while(i4)ck+=ai+；while(j3)ck+=bj+;for(int n二;n7;n+)coutcn;return 0;)3 .编写个函数prn_pict(i

43、nt m, int n),输出m行n列的图形,图形的第一行由n个字符A组成,图形的第二行由n个B组成,依次递推。用主函数调用执行。4 .编写一个函数,将一个数插入到已是升序的数组中,且插入后该数组仍是升序数组。已是升序数组的内容由主函数给出,待插入的数在主函数中输入。#includeint main ()int i, j, number, all=l,2,4,6,8,9,12,15,20,30);cout 请输入个数:;cinnumber;cout 开始的数组:；for(i=0;i10;i+)coutai;coutendl;i=0;while (i=ai) i+;for(j=10; j=i;

44、j)aj=aj-l;ai=number;cout 插入后的数组:;for(i=0;ill;i+)coutai“return 0;5 .编写个程序,不断要求用户输入两个数,直到其中的个为0,则结束。对于每两个数,程序将使用个函数来计算它们的调和平均数,并将结果返回给mainO,而后者将报告结果。调和平均数指的是倒数平均值的倒数,计算公式如下调和平均数=2.0* x * y /(x + y)ttinclude double tiaohe(double, double);int main()double x, y;cout 请输入两个数:;while(cin x y & x * y !=0)doub

45、le t_tiaohe = tiaohe(x, y);cout 调和平均数=t_tiaohe endl;cout 请输入两个数:;)return 0;double tiaohe(double a, double b)double num;num =2.0* a * b /(a + b);return num;)胡圣亮6-13题6 .输入一行字符,分别统计其中包含的数字、字母和其他字符的个数。#includeusing namespace std;int main ()(char c;int a二, b二, d二;while(c=getchar()!=，n )if (c=，a&c= A&c=O&

46、c二9)b+;else d+;)cout”数字的个数:bendl;cout字母的个数:aendl;cout 其他字符的个数: d endl;return 0;7 .有一个3X4的矩阵,要求编写程序求出其中值最大的那个元素的值,以及其所在的行号和列号,数据自拟。#includeusing namespace std;int main()(int a34=1,3,5,6,8,10,11,9,18,13,14,15);int max = a, n, m;for(int i=0;i3;i+)for(int j=0;jmax) max = aij; n = i;m = j;couta34矩阵中最大的值为

47、:maxendl;cout最大值行号:nendl;cout最大值列号:mendl;return 0;8 .任意输入一串字符串,其中有大写也有小写,编程将其中的小写字母转为大写并输出。#includeiostream using namespace std; int main ()char c;cout 请输入一串字符:;while (c=getchar ()!=n)if (c=，a&c=，z) c = c-32;coutc;)coutendl;return 0;)9 .在100200中找出同时满足3除余2,用5除余3和用7除余2的所有整数#includeusing namespace std;

48、int main()(for(int i=100;i=200;i+)(if(i%3=2&i%5=3&i%7=2)couti”)return 0;)10 .有一分数序列:23581321一，一，1235813求出这个数列的前20项之和。#includeusing namespace std;int main()(double a=2, b=l, temp;double sum=0.0;for(int i=l;i=20;i+)sum += a/b;temp = a;a=a+b;b=temp;cout2/1+3/2+5/3+8/5+13/8+21/13.=sumendl;return 0;11.编写

49、个程序,其中main。调用个用户定义的函数（以摄氏温度值为参数,并返回相应的华氏温度值）,该程序按照下面的格式要求用户输入摄氏温度值,并显示结果:Please enter a Celsius value:2020 degrees Celsius is 68 degrees Fahrenheit.转换公式如下:华氏温度=1.8 x摄氏温度+32.0#includeusing namespace std;float fun(float);int main()(float c;cout Please enter a Celsius value:;cinc;cout20 degrees Celsius

50、 is ”fun(c) degrees Fahrenheit.# define M 4# define N 5using namespace std;int main()int cM+N, i=0, j=0, k=0;int aM=2,4,6,8;int bN=1,3,5,7,9;while (iM&jN)if(aibj) ck+= ai+;else ck+= bj+;while(iM)ck+= ai+;while(jN)ck+= bj+;for (int z=0;zM+N;z+)coutcz;return 0;)13 .用指针方法完成:对个4X5矩阵(int型)分别进行横向和纵向汇总(如图)。72946561839863951972#includeusing namespace std;int main()(int s45=7,2,9,4,6,5,6,1,8,3,9,8,6,3,9,5,1,9,7,2;int *p;P =&s;for (int i=0; i4*5;i+)coutpi;if (i+l)%5=0) coutendl;return 0;14声明一个类模板,利用它分别实现两个整数、浮点数和字符的比较,求出大数和小数。#include using namespace std; templatecl