Computer Science Canada

An array of an array
Author:  mwachna [ Tue Mar 01, 2005 1:27 pm ]
Post subject:  An array of an array
Ok...i have 3 parametres...first is the subject, topic, and days needed to cover the topic.

each are represened by int's.
subject=3
topic(subject(1))=3; topic(subject(2))=2; topic(suject(3))=1
days(t(s(1))(1))=2 %this means that the days needed to cover the 1st topic of the first subject is 2; days(t(s(1))(2))=1; days(t(s(1))(3))=1
days(t(s(2))(1))=4; days(t(s(2))(2))=2
days(t(s(3))(1))=8

so ideally i would like to call upon a variable, lets call it "AtClass" in the form of "AtClass(S,T,D)" %haha...STD not intentional

i would like this variable to contain the number of students in class.
so if AtClass(2,1,3)=10, that would mean that 10 children were presend for the 3rd day of the first topic covered in subject 1.

basically i want to do:
var AtClass: array of 1..3, 1..(topics for subject of the first parametre), 1..(days for the topic # of the second parameter for the subject of the first parameter) of int

sorry this is really hard to describe
Author:  Tony [ Tue Mar 01, 2005 1:29 pm ]
Post subject: 
yes
Author:  jamonathin [ Tue Mar 01, 2005 2:21 pm ]
Post subject: 
lol, yeah, whatever your code is, use the code tools, so then it wont look like a bunch of letters bunched together, and we can deciefer between everthing.
Author:  person [ Tue Mar 01, 2005 3:48 pm ]
Post subject: 
i really dont get ur problem...but maybe im the only one lost?
Author:  Flikerator [ Tue Mar 01, 2005 4:11 pm ]
Post subject: 
Use a record with an array. If I understand the problem clearly use them. There are two tutorials in the tutorials section on both.

code:
type Students :
     record
          subject
          days
          topic
     end record


Looks something like that, manipulate it as you please.
Author:  mwachna [ Tue Mar 01, 2005 7:48 pm ]
Post subject:  in code...
here, this is what i have for a temporary code: (to animate a dance step)

code:


var Steps : array 1 .. 3, 1 .. 100 of int
var StepName : array 1 .. 3, 1 .. 100 of string
var TotSteps : array 1 .. 3 of int
var preview : array 1 .. 10 of array 1 .. 3, 1 .. 100 of int

%note: i used "100" as an extreme limit, however, the limits vary and are
%all under 20

proc Preview (region : int, step : int) %3 possible region value
                                                      %each region has a unique amount
                                                      %of steps ("step")
    loop
         for rep : 1 .. Frames (region, step)  %how many frames for this step
              Pic.Draw (preview (rep) (region, step), 100, 0, picCopy)
              delay (500)
         end for
    exit when hasch
    end loop
end Preview
Author:  Flikerator [ Tue Mar 01, 2005 7:51 pm ]
Post subject: 
When submitting code make sure to put on "Code" Format... and include the vars >.<
Author:  Bacchus [ Tue Mar 01, 2005 9:15 pm ]
Post subject: 
so if im understanding this right... you want an array with a sub-array that has a sub-array?
[code]var blah:array 1..x,1..x,1..x of watever[code]
or if you wanted one array but with different subheadings:
[code]var blah:array 1..x of
record
a:int
b:string
end record[/code]
Author:  mwachna [ Wed Mar 02, 2005 1:16 am ]
Post subject:  arrays
Well i more want to have an array of an array, but i want to set the parametres seperately for each part of the array. If i wanted to do it the long and complex way, we would be looking at something like this:

code:

var TotalClass1Topic1Day1:int
var TotalClass1Topic1Day2:int
var TotalClass1Topic1Day3:int
var TotalClass1Topic2Day1:int
var TotalClass1Topic2Day2:int
var TotalClass2Topic1Day1:int
var TotalClass2Topic1Day2:int
var TotalClass2Topic1Day3:int
var TotalClass2Topic2Day1:int
var TotalClass2Topic2Day2:int
var TotalClass2Topic2Day3:int
var TotalClass2Topic3Day1:int
var TotalClass2Topic3Day2:int
var TotalClass3Topic1Day1:int
var TotalClass3Topic1Day2:int
var TotalClass3Topic2Day1:int
var TotalClass3Topic2Day2:int

as you can see...its way to much variable declaration and if i wanted to output one of these variables depending on an independent condition i would have to create the world's largest if statement.
There has to be away for me to group these together into some kind of array so that i can just say "put Toltal(x)(y)(z)" or "put Total(x,y,z)" where x y an z are variables with values generated from an independent event.

if this doesn't clear things up, don't worry about it. I will hammer things out edvintually.
Author:  Tony [ Wed Mar 02, 2005 9:59 am ]
Post subject: 
just wondering... has a thought of trying out the code ever occured to you? What you're trying to do is compleatly legal.
Turing:

var foo : array 1 .. 3, 1 .. 3, 1 .. 3 of int
for x : 1 .. 3
    for y : 1 .. 3
        for z : 1 .. 3
            foo (x, y, z) := x + y + z
        end for
    end for
end for
Author:  Ayoun [ Sun Mar 06, 2005 12:29 pm ]
Post subject:  ur so dumn
damn you stupid people!!! Evil or Very Mad
Author:  Flikerator [ Sun Mar 06, 2005 3:20 pm ]
Post subject:  Re: ur so dumn
Ayoun wrote:
damn you stupid people!!! Evil or Very Mad


err? What is that supposed to mean. "Oh no someone doesnt know something"..
Author:  mwachna [ Mon Mar 07, 2005 11:21 am ]
Post subject: 
I have found a solution to the problem...for better understanding, and an answer to my problem, check out the tutorial: "arrays of arrays and more arrays."

:


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