Algorithm for setting up an array??? (1 Viewer)

[chris42]

Hey,

Does anyone know a good algorithm for setting up an array.. I'm a bit stuck..

Thanks

Chris42

 

[B.A.M]

When you say setting up and array do you mean declaring it or clearing its contents?

You don't need to declare any variables in an algorithm thoguh it may be good to note the structure such as an array of records just so that the marker knows where you're heading.

For clearing an array you would need to:

BEGIN
i = 1
FOR i to 100
practice(i) = " "
NEXT i
END

i'm pretty sure, if its wrong let me know

it got rid of the indenting but you get the idea

 

[chris42]

Yeah thanks.. I'll remember that for tommorow

 

[Glide]

Hmm........
So we dont need to declaire any array of records, we can just assume a variable to be one?

 

[Popo Nana]

Seems to be the case. Sounds good anyhow.

 

[saves.the.day]

For algorithms, I'm sure that your "i" variable should be 0 as the first element in the array is identified by a 0 but yours is good. I dont think it matters how you start actually.

Personally, i like using

index= 0
array_length = get the length of desired array

WHILE index < array_length
    array(index) = "data"
    index = indext + 1
ENDWHILE

 

[Glide]

0 isnt always be assumed as the first item in the array, visual basic does that by default, which you can change if you type 'option base 1' at the top of your code...

So yeah, no biggie


The question is, what if you dont know the boundaires of your array, and your asked to include one :|

 

[MrMiK]

uh.. im not sure about it.. but can you test for values or somthing inthe array and then step back? or like an error..
"if there is no array value at current index, the last array index is the previous." type of thing.
(sorry for being so vague)

also dont know if this is possible since "0" in the middle would screw it up.

 

[shkspeare]

for dynamic arrays

begin
let i = 0
for i = 0 to max
blah(i) = ____
next
end