error: called object is not a function or function pointer

Question

I have the following code:

  z=x-~y-1;
    printf(\"%d\",z);
  z=(x^y)+2(x&y);
    printf(\"%d\",z);
  z=(x|y)+(x&y);
    printf(\"%d\",z);
  z=2(x|y)-(x         


        

Answer 1

Change

z=(x^y)+2(x&y);

to

z=(x^y)+2*(x&y);

and

z=2(x|y)-(x^y);

to

z=2*(x|y)-(x^y);

You need the multiplication operator if multiplication is what you intended.