The "&" symbol is called a(n):

I have a variable int a = 2;

then a variable int& b = a;

What happens if I change the value of b

Which of these looks like a possible output

int variable = 5;

cout<<&variable;

If the address of b is at 0x7ff.

What would the following code output?

int b = 160;

int &a = b;

int &c = a;

cout<<a <<endl;

cout<<&c;

Given the function

int var(int& x){

x+= 10;

return 0;

};

What will this code output?

int main(){

int b = 160;

var(b);

cout<<b <<endl;

}

Given the function

int var(int& a){

a*= 2;

return 0;

};

What will this code output?

int main(){

int b = 160;

int a = b - 60;

var(a);

cout <<b <<endl;

cout<< a <<endl;

}

Given the function

void fun(int& a, int& b){

int c = a;

a = b;

b = c;

};

What will this code output?

int main(){

int b = 160;

int a = b - 60;

fun(a, b);

cout <<b <<endl;

cout<< a <<endl;

}

How will the array be displayed after we call fun(arr[1], arr[3]?

void fun(int& a, int& b){

int c = a;

a = b;

b = c;

};

int main(){

int arr[] = { 10, 20, 30 40 }

fun(arr[1], arr[3]);

for(int i = 0; i < sizeof(arr); i ++){

cout<<arr[i] << " ";

}

}

Fill this blank to have the function work as instructed:

int practice(int& x){

//multiply x by 2

___________

return 0;

}

Given the function:

int practice(int& x){

...

}

What would be a proper function call for it?

int main() {

int bananas = 10;

int& apple = bananas;

//call the function here

_______

return 0;

}

If the address of a is at 0x2ab3.

What would the following code output?

int a = 20;

int &b = a;

cout<<&a <<endl;

cout<<b;