Notes)
CodeWithWahid
Abstract Data Type is a new data type upon which we have defined our set of operations and
values. We can directly link it with object-ended programming. So what have I done ? I 've
made a OneNote Notebook. And here, by the name of 'Algorithms. 1' An integer is not an
abstract data type, it is a primitive data type. Like an integer, I can also make my own data
type , Assume that I want to make a data type called 'my array' The C language is a special
type of array. It must have a total size. total_size. And after that, it must have an address ,
Base address. Base address is the pointer. This My Array ADT that's being made The
representation of the set of values This is it. I 'll do it like this. And I'll write here + , meaning
the set. of operations. Here I can define some operations. What can those operations be ?
Those operations can be anything. It 's my choice ; whatever I choose to keep. So we can
define a lot of these types of operations And we can make our custom data types. So I have
made a My Array abstract data type.
This is Stack And this is Heap. Stack is the static memory; Heap is the dynamic memory. If I
want to make an array, I can either I make the array in the stack Like if this is the stack of the
main function , okay. This is the heap of my main function. I 'll write Main here. Or I make an
integer pointer here. I request some memory , And make its previous address point , And
here with my array , I can request Its indices will be 0,1,2,3,4. . . Okay ? In this manner, I can
add some values to it 7,8,12,27,88. . . It 's my choice ; whatever I choose to put. So in this way
I can make this array. If we have to make an array of size 'n ' , So n multiplied by ; meaning
star Then the size of operator , and after that, int. In which we will define the total size , the
use size , use size, the base address and after that , We will define some of our operations on
it. Figure out once you see it When I give you the notebook. And here I 'll write ; this is the
'representation ' And after that, we 'll have 'operations ' So this is operations. Operations.
An array is contiguous blocks of memory, i. e the capacity to store 6 elements. The base
address will be the address of that first element , That the array is pointing towards So this is
a pointer that will store its address Whatever is my first element, the one with 0th index. The
advantage I 'll get is If I ever want to make insertions in this array Then I can move them a
, little , all the elements. But if I define the array as big as I can I might have to make another
completely new array. And I think moving things a bit is better. We can implement this in any
programming language. The capacity of arrays is. . . In that , the updation and access are
very fast. So in arrays , the biggest advantage is this : It is the fact that you can access the
element ; You can calculate from the base address. Assume there is a field in which Starting
from 1, at every kilometre , at every milestone there is. . . a milestone 3. . . 4. . . 5. . . Okay ?
Assume this is from Delhi. . . This is our Delhi and assume there 's a route from here And
from here, how many kilometres away from here. We 'll set up our coding environment And
we 'll implement My Array on a structure. So I 'll quickly tell a little bit of implementation in
this video We 're going to code anyway. So in the next video, we'll see its implementation and
complete it. And I do n't want to do it on the whiteboard.
Please keep liking this video. I just want you guys to like , and keep up the enthusiasm. If you
do that then I 'll be able to make such videos and these types of notes. I 've made these
notes for you All the details are there in here. It 'll never happen that you finished this course
And you have to watch these videos again after 6 months Because you'll have these notes
with you.
Implementing Array as an Abstract Data Type in C
Language
This is the C in 1 Video That is of 15 hours. My preference is installing the MinGW 64-bit
compiler. And you should download and install this. Along with that, please download Visual
Studio Code. The biggest advantage of this is that today I 'm writing C language Code in
Visual Studio. Tomorrow I can write C++ , then HTML and JavaScript and even Typescript. In
Visual Studio, I 've made a snippet of boilerplate code for Array ADT. If I write C boilerplate
here, this C thing comes automatically. If you do n't know where to get this code or If you
don't know how to use it, Then you can refer to this video. The lesser the programme uses
memory, The more optimised it 's assumed to be. For example, if Google is taking up too
Chrome much RAM You 'd wish for it to take up less RAM. But keeping in mind the users '
experience , The team of Google Chrome must have taken some decisions To make.