C++程序设计综合练习题-读程序写结果题

C++程序设计模拟题三、用C++语言描述下列命题1、A小于B并且A大于C2、A和B中有—个小于C3、A是奇数4、B和C中较大者与A相等5、年份Y是闰年四、写出下列程序的执行结果1.#include <iostream .h>void main(){int b[3][5]={11,12,13,14,15,21,22,23,24,25,31,32,33,34,35};int (*p)[5];p=b;for(int j=0;j<5;j++)cout<<*(*p+j)<< "," ;cout<<endl;}2.#include<iostream.h>void swapl(int a,int b){int temp=a;a=b;b=temp;}void swap2(int*a,int*b){int temp=*a;*a=*b,*b=temp;}void swap3(int*a,int*b){int*temp=a;a=b,b=temp;}void swap4(int &a,int &b)int temp=a;a=b; b=temp;}void main(){int a=10,b=20;swapl(a,b);cout<<a<<": "<<b<<endl;swap2(&a,&b);cout<<a<<": "<<b<<endl;swap3(&a,&b);cout<<a<<": "<<b<<endl;swap4(a,b);cout<<a<<": "<<b<<endl;}3.&&&#include<iostream. h>void print(int w){int i;if(w!=0){print(w-1);for(i=1;i<=w;i++)cout<<w;cout<<endl;}}void main(){print(4);}4.#include<iostream.h>#define sw(x,y) {x^=y;y^=x;x^=y;} void main(){int a=10,b=01;sw(a,b);cout<<a<<","<<b;5.假定输入10个整数：32，64，53，87，54，32，98，56，98，83。

下列程序的输出结果是什么？&&&#include<iostream.h>void main( ){int a,b,c,x;a=b=c=0;for (int k=0; k<10; k++){cin>>x;switch(x%3){case 0:a+=x; break;case 1:b+=x; break;case 2:c+=x; break;}}cout<<a<<" "<<b<<" "<<c<<endl;}6.***#include<iostream.h>void main( ){int j,k;for (j=5; j>0; j--){for (k=j; k>0; k--)cout<<"*";cout<<endl;}}7.#include <iostream.h>void main(){int nNumber;int *pPointer;nNumber = 15;pPointer = &nNumber;cout<<"nNumber is equal to :"<< nNumber<<endl;*pPointer = 25;cout<<"nNumber is equal to :"<<nNumber<<endl; }8.#include <iostream.h>int *pPointer;void SomeFunction(){pPointer = new int;*pPointer = 25;}void main(){SomeFunction();cout<<"Value of *pPointer: "<<*pPointer<<endl;delete pPointer;}9.#include <iostream.h>void AddFive(int* Number){*Number = *Number + 5;}void main(){int nMyNumber = 18;cout<<"My original number is "<<nMyNumber<<endl; AddFive(&nMyNumber);cout<<"My new number is "<<nMyNumber<<endl;}10.#include <iostream.h>void main(){int Array[3];Array[0] = 10;Array[1] = 20;Array[2] = 30;int *pArray;pArray = &Array[0];cout<<"pArray points to the value."<<endl;cout<<*pArray<<endl;cout<<*(pArray+1)<<endl;}11.***#include<iostream.h>int i=4;void main(){cout<<"i="<<i<<endl;i=5;{int i;i=7;cout<<"i="<<i<<endl;}cout<<"i="<<i;}12.***#include<iostream.h>void fun( );void main( ){fun( );fun( );}void fun( ){static int a=1;int i=5;a++;i++;cout<<"i="<<i<<",a="<<a<<endl;}13.&&&#include <iostream.h>class Point{public:Point(int xx=0, int yy=0) {X=xx; Y=yy; countP++; }Point(Point &p);int GetX( ) {return X;}int GetY( ) {return Y;}void GetC( ) {cout<<" Object id="<<countP<<endl;} private:int X,Y;static int countP;};Point::Point(Point &p){ X=p.X;Y=p.Y;countP++;}int Point::countP=0;void main ( ){ Point A(4,5);cout<<"Point A,"<<A.GetX ( ) <<","<<A.GetY ( );A.GetC ( );Point B(A);cout<<"Point B,"<<B.GetX ( ) <<","<<B.GetY ( );B.GetC ( );}14.***#include <iostream.h>int addDefault(int x=1,int y=2);void fun(void);void main(void){int addDefault(int x=3,int y=4);cout<<addDefault()<<endl;fun();}int addDefault(int x, int y){cout<<x<<"+"<<y<<"=";return x+y;}void fun(void){cout<<addDefault()<<endl;}15.***#include <iostream.h>void main(){int m,n,a=3,b=3,number;number=237;m=number/5;n=number%5;cout<<"m="<<m<<endl;cout<<"n="<<n<<endl;a+=m;b*=n;cout<<"a="<<a<<endl;cout<<"b="<<b<<endl;}16.***#include <iostream.h>void main(){int width,height,result1,result2,result3;height=3;width=5;result1=height>3 && width>=5;result2=height>3 || width>=5;result3=!(width>=5);cout<<"result1"<<result1<<endl;cout<<"result2"<<result2<<endl;cout<<"result3"<<result3<<endl;}17.***#include <iostream.h>void main(){ int i=32,j=6;double df;df=i/j+2.3;cout<<"df="<<df<<endl;i=df/3;cout<<"i="<<i<<endl;}18.&&&# include <iostream. h>int c[10];void add(int x,int y){static int i=0;c[i]=x+y;i++;}void main(){int a[10]={1,2,3,4,5,6,7,8,9,10};int b[10]={10,9,8,7,6,5,4,3,2,1};int i=0,k=0;for(i=0;i<10;i++)add(a[i],b[i]);for(i=0;i<10;i++)cout<<c[i]<<" ";}19.#include <iostream.h>void main(){char s[30]="computer,mouse,key";int i=0,k=0;cout<<s<<endl;while(s[i]!='\0'){if(s[i]=='m') //通过数组名和下标引用数组元素k++;i++;}cout<<"i="<<i<<endl;cout<<"k="<<k<<endl;}20.#include <iostream.h>void main(){char s[]="C++ program";char *ps1="computer";char *ps2,*ps3=s;ps2="mouse";cout<<s<<" "<<ps1<<" "<<ps2<<" "<<ps3<<endl;ps1++;ps2+=2;ps3+=4;cout<<s+4<<" "<<ps1<<" "<<ps2<<" "<<ps3<<endl;cout<<*s<<" "<<*ps1<<" "<<*ps2<<" "<<*ps3<<endl;ps1=s;}21.如果输入的数据是24和18，则下列程序的输出结果是什么？*** #include <iostream.h>int fun1(int c,int d){int r;r=c%d;while(r!=0){c=d;d=r;r=c%d;}return d;}void main(){int m,n,e,d;cout<<"m n=";cin>>m>>n;e=fun1(m,n);d=m*n/e;cout<<e<<endl;cout<<d<<endl;}22.#include <iostream.h>void main(){int a[3][4]={{1,2,3,4},{3,4,5,6},{5,6,7,8}};int b[4][3],i,j;for(i=0;i<3;i++){for(j=0;j<4;j++)cout<<a[i][j]<<" ";cout<<endl;}for(i=0;i<4;i++)for(j=0;j<3;j++)b[i][j]=a[j][i];for(i=0;i<4;i++){for(j=0;j<3;j++)cout<<b[i][j]<<" ";cout<<endl;}}23.#include <iostream.h>#include <iomanip.h>void main(){const int m=5;int a[m][m];int i,j;for(i=0;i<m;i++){a[i][0]=1;a[i][i]=1;for(j=1;j<i;j++)a[i][j]=a[i-1][j-1]+a[i-1][j];}for(i=0;i<m;i++){for(int k=0;k<30-2*i;k++)cout<<" ";for(j=0;j<=i;j++)cout<<setw(5)<<a[i][j];cout<<endl;}}24.#include <iostream.h>void main(){char s[30]="computer,mouse,key";int i=0,k=0;cout<<s<<endl;while(s[i]!='\0'){if(s[i]=='m')k++;i++;}cout<<"i="<<i<<endl;cout<<"k="<<k<<endl;}25.#include <iostream.h>#include <iomanip.h>struct student{char num[5];char name[10];char sex;int age;float mathscore;};void main(){struct student st[10]={{"001","Wangping",'f',19,84},{"002","Zhaomin",'m',20,64},{"003","Wanghong",'f',18,54},{"004","Lilei",'m',19,92},{"005","Liumin",'m',19,75}};int i,k=0;float average=0;for(i=0;i<5;i++)average+=st[i].mathscore;average/=10;cout<<"average="<<average<<endl;for(i=0;i<5;i++)if(st[i].mathscore<60){k++;cout<<st[i].num<<" "<<st[i].name<<" "<<st[i].sex;cout<<" "<<st[i].age<<" "<<st[i].mathscore<<endl;}cout<<k<<endl;}26.#include <iostream.h>void main(){int b[3][4]={23,38,16,12,56,89,66,34,58,12,90,100};int i,j,m=3,n=4;for(i=0;i<m;i++){ for(j=0;j<n;j++)cout<<*(*(b+i)+j)<<" ";cout<<endl;}for(i=0;i<20;i++) cout<<"-";cout<<endl;for(i=0;i<m;i++){ for(j=n-1;j>=00;j--)cout<<*(b[i]+j)<<" ";cout<<endl;}for(i=0;i<20;i++) cout<<"-";cout<<endl;for(i=m-1;i>=0;i--){ for(j=0;j<n;j++)cout<<b[i][j]<<" ";cout<<endl;}}27.#include <iostream.h>void main(){int a[]={12,22,32,42,52,62,72,82,92,102};int i, m=5;int *p=a;for(i=0;i<m;i++)cout<<*p++<<" ";cout<<endl;for(i=m-1;i>=0;i--)cout<<p[i]<<" ";cout<<endl;}28.#include <iostream.h>void main(){int b[2][4]={12,36,62,14,56,98,74,63};int (*p)[4]=b;int i,j;for(i=0;i<2;i++){for(j=0;j<4;j++)cout<<*(*(p+i)+j)<<" ";cout<<endl;}for(i=0;i<20;i++) cout<<"-";cout<<endl;for(i=0;i<2;i++){for(j=3;j>=0;j--)cout<<p[i][j]<<" ";cout<<endl;}}29.#include <iostream.h>#include <stdlib.h>void main(){ int func(int a,int b,char op);int (*fptr)(int a,int b,char op);fptr=func;cout<<func(3,5,'+')<<endl;cout<<fptr(3,5,'*')<<endl;}int func(int a,int b,char op){switch(op){case '+':cout<<a<<op<<b<<"=";return a+b;break;case '-':cout<<a<<op<<b<<"=";return a-b;break;case '*':cout<<a<<op<<b<<"=";return a*b;break;default:cout<<"Operator error!"<<endl; return 0;}}30.#include <iostream.h>struct student{char *num;char *name;int age;};void main(){int *ip;float *fp;char *cp;struct student *stp;fp=new float(32.6);cp=new char;*cp='A';ip=new int[10];for(int i=0;i<10;i++)ip[i]=2*i+2;stp=new struct student;stp->num="12";stp->name="Li";stp->age=18;cout<<*fp<<" "<<*cp<<" "<<endl;cout<<"num="<<stp->num<<" name="<<stp->name<<" age="<<stp->age<<endl;for(i=0;i<10;i++)cout<<ip[i]<<" ";cout<<endl;delete cp;delete fp;delete []ip;delete stp;}31.＊＊＊#include <iostream.h>class Point{public:Point(int xx=0,int yy=0){X=xx; Y=yy;cout<<"构造函数被调用"<<endl;}Point(Point& p);int GetX( ) {return X;}int GetY( ) {return Y;}private:int X,Y;};Point::Point (Point& p){X=p.X;Y=p.Y;cout<<"拷贝构造函数被调用"<<endl;}Point fun2( ){ Point A(1,2);return A;}void fun1(Point p){ cout<<p.GetX( )<<endl;}void main( ){ Point A(1,2);fun1(A);Point B(A);cout<<B.GetX( )<<endl;B=fun2();cout<<B.GetX( )<<endl;}32.***#include <iostream.h>#include <math.h>class Point{public:Point(int xx=0, int yy=0){X=xx;Y=yy;cout<<"构造函数被调用"<<endl;}Point(Point &p);int GetX() {return X;}int GetY() {return Y;}private:int X,Y; };Point::Point(Point &p){X=p.X;Y=p.Y;cout<<"Point拷贝构造函数调用"<<endl; }class Distance{public:Distance(Point xp1, Point xp2);double GetDis(){return dist;}private:Point p1,p2;double dist;};Distance::Distance(Point xp1,Point xp2):p1(xp1),p2(xp2){cout<<"Distance构造函数调用"<<endl;double x=double(p1.GetX()-p2.GetX());double y=double(p1.GetY()-p2.GetY());dist=sqrt(x*x+y*y);}void main(){Point myp1(1,1),myp2(4,5);Distance myd(myp1,myp2);cout<<"The distance is:";cout<<myd.GetDis()<<endl;}33.#include <iostream.h>class Base{public:Base(int x,int y) { a=x; b=y; }void Show() { cout<<"Base: "<<a<<","<<b<<endl; }private:int a,b;};class Derived : public Base{public:Derived(int x,int y,int z) : Base(x,y),c(z) {} void Show() { cout<<"Derived: "<<c<<endl; }private:int c;};void main(){Base b(50,50),*pb;Derived d(10,20,30);pb=&b;pb->Show();pb=&d;pb->Show();}。