CS 13A

Prof. Sturm HW #4 - pointers

(This HW is not to be collected. Do the exercises at home, and we will go over them in class.)

What’s the output?

1.

int *p,*q,m=5,n=6;

p=&m;

q=&n;

n=*p;

q=p;

m=*q;

Cout<<m<<n<<endl;

2.

int a[3] = {1,15,20};

int *p;

p=a;

cout<<*a<<*a+2<<*(a+2)<<a[a[0]]<<*p+1<<*(p+2)<<endl;

3.

int *a;

int n;

n = 10;

a = new int [n];

for(int i=0; i<10; i++){

a[i] = i%3;

cout<<a[i]<<endl;

}

4.

void func(int *p,int n){

*p = 10;

n = 5;

}

void main(){

int n=1,m=2;

func(&m,n);

cout<<m<<n<<endl;

}

5.

void func(int n, int *p, int &m){                                out

*p = n + m + m;

n = n+2;

m=m+2;

return;

            }

void main(){

int a=10,b=20,c=30;

func(a,&b,c);

cout<<a<<b<<c<<endl;

            }