Thread: this is fun but Im new and confused

Why not use pointers?

pointer a = beginning
pointer b = end

while( a != b)
--b = ++a

Now let's look at swapping two values. Say I have two variables, this and that. I can't start by saying either this=that (because then this goes away), or that=this (because then that goes away). I have to temporarily store one of them: temp = this. Now that I've stored the old value of this, I can put in the new value: this = that. And now finally I can replace that: that = temp. So it would look like

Code:

temp = this;
this = that;
that = temp;

array[index]

the original array is to be a[n]
I need to put it reverese.

Is tabstop officially invisible? Take the very first bit of a, and the very last bit of a and swap those.

Code:

 for( k=n-1; k>0;k--)
   temp = k;
  k = n;
 a[n] = temp;

?

Blast....

Code:

int i, j, n, tmp, a[25];

n = 25;

for(i = 0, j = n-1; i < j; ++i, --j)
{
  tmp = a[j];
  a[j] = a[i];
  a[i] = tmp;
}

brb and will look at this

Yeah definitely don't try to take in too much at once. This is where it gets pretty intense. Sorry... I really am feeling sick right now. I don't mean to be so.... irritable.

hmm yeah a bit confusing, but im checking it out. seems you declared more varialbles in that then me

ahh i see sonething
you are swapping the i and j
makes sense
but I was supposed to stick with only a n k and tep variables

Well whatever, they are just variables. Call them whatever you wish.

Code:

 for ( k=n-1; k>0;--k) {
  temp = a[k];
  a[k = ?;
  ? = temp;

se ewhat i mean? i dont have that extra variable to use

i mean i am supposed to complete the task without declaring any more variables