c__程序设计谭浩强课后习题答案(完整版)

第一章

1.5题

#include using namespace std; int main()

{

cout<<"This"<<"is"; cout<<"a"<<"C++"; cout<<"program."; return 0;

1.6题

#include using namespace std; int main()

{

int a,b,c;

a=10;

b=23;

c=a+b;

cout<<"a+b=";

cout<

cout<

return 0;

}

1.7七题

#include using namespace std; int main()

{

int a,b,c;

int f(int x,int y,int z); cin>>a>>b>>c;

c=f(a,b,c);

cout<

}

int f(int x,int y,int z) {

int m;

if (x

else m=y;

if (z

return(m);

}

1.8题

#include

using namespace std;

int main()

{

int a,b,c;

cin>>a>>b;

c=a+b;

cout<<"a+b="<

}

1.9题

#include

using namespace std;

int main()

{

int a,b,c;

int add(int x,int y);

cin>>a>>b;

c=add(a,b);

cout<<"a+b="<

return 0;

}

int add(int x,int y)

{int z;

z=x+y;

return(z);

}

2.3题

#include

using namespace std;

int main()

{char c1='a',c2='b',c3='c',c4='\101',c5='\116'; cout<

cout<<"\t\b"<

return 0;

}

2.4题

#include

using namespace std;

int main()

{char c1='C',c2='+',c3='+';

cout<<"I say: \""<

cout<<"\t\t"<<"He says: \"C++ is very interesting!\""<< '\n';

return 0;

}

2.7题

#include

using namespace std;

int main()

{int i,j,m,n;

i=8;

j=10;

m=++i+j++;

n=(++i)+(++j)+m;

cout<

return 0;

}

2.8题

#include

using namespace std;

int main()

{char c1='C', c2='h', c3='i', c4='n', c5='a';

c1+=4;

c2+=4;

c3+=4;

c4+=4;

c5+=4;

cout<<"password is:"<

}

3.2题

#include

#include

using namespace std;

int main ( )

{float h,r,l,s,sq,vq,vz;

const float pi=3.1415926;

cout<<"please enter r,h:";

cin>>r>>h;

l=2*pi*r;

s=r*r*pi;

sq=4*pi*r*r;

vq=3.0/4.0*pi*r*r*r;

vz=pi*r*r*h;

cout<

cout<<"l= "<

cout<<"s= "<

cout<<"sq="<

cout<<"vq="<

cout<<"vz="<

return 0;

}

3.3题

#include

using namespace std;

int main ()

{float c,f;

cout<<"请输入一个华氏温度:";

cin>>f;

c=(5.0/9.0)*(f-32); //注意5和9要用实型表示,否则5/9值为0

cout<<"摄氏温度为:"<

return 0;

};

3.4题

#include

using namespace std;

int main ( )

{char c1,c2;

cout<<"请输入两个字符c1,c2:";

c1=getchar(); //将输入的第一个字符赋给c1 c2=getchar(); //将输入的第二个字符赋给c2 cout<<"用putchar函数输出结果为:";

putchar(c1);

putchar(c2);

cout<

cout<<"用cout语句输出结果为:";

cout<

return 0;

}

3.4题另一解

#include

using namespace std;

int main ( )

{char c1,c2;

cout<<"请输入两个字符c1,c2:";

c1=getchar(); //将输入的第一个字符赋给c1 c2=getchar(); //将输入的第二个字符赋给c2 cout<<"用putchar函数输出结果为:";

putchar(c1);

putchar(44);

putchar(c2);

cout<

cout<<"用cout语句输出结果为:";

cout<

return 0;

}

3.5题

#include

using namespace std;

int main ( )

{char c1,c2;

int i1,i2; //定义为整型

cout<<"请输入两个整数i1,i2:";

cin>>i1>>i2;

c1=i1;

c2=i2;

cout<<"按字符输出结果为:"<

return 0;

}

3.8题

#include

using namespace std;

int main ( )

{ int a=3,b=4,c=5,x,y;

cout<<(a+b>c && b==c)<

cout<<(a||b+c && b-c)<

cout<<(!(a>b) && !c||1)<

cout<<(!(x=a) && (y=b) && 0)<

cout<<(!(a+b)+c-1 && b+c/2)<

return 0;

}

3.9题

include

using namespace std;

int main ( )

{int a,b,c;

cout<<"please enter three integer numbers:";

cin>>a>>b>>c;

if(a