P0 notes

As discussed in class, there is some syntax in P0 that you haven't been taught. Most of you have been figuring it out, but I do appologize for the problems. I wrote the assignement over break and didn't go back to check that I was only using language constructs in that code which I had taught.

Plus there are a few other errors.

Syntax you don't know

a%b returns the remainder of a/b
So 5%3=2
i++ is the same as i=i+1;
if(bob) The statement is true unless bob==0.
Main is declared oddly, Just ignore it.
exit(1) causes the program to exit at that point.
It is like a return statement for the whole program.

Other issues:

There is a comment that is wrong.
// Computes C(x,y)=x!/(y!*(x-y!). x>=y

This should be
// Computes C(x,y)=x!/(y!*(x-y)!).
For x greater than or equal to y.
And an error in the directions:
You may not change the function names, arguments or return values
That should be:
You may not change the function names, arguments or return types.