Interview
Introduction to Data Structures & Algorithms
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HEY!! this is the introduction notes of Data Structures & Algorithms(dsa) in future I'll be posting more notes related to this document.
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Introduction to Data Structures and AlgorithmsThis course is primarily for placement preparation and will be using C and
C++ for the algorithms and data structures. The notes for the course will
be provided in PDF format for convenience. Data structures are essential
for developing efficient algorithms that arrange data in main memory for
optimal usage. It's important to note that algorithms and data structures
are two different things. C is a bare-bones programming language that
requires you to do everything yourself, but Java can also be used to
implement algorithms. This course is ideal for those looking to switch
jobs or prepare for interviews, and there is a 15-hour video on C
programming available on the channel with notes.
Data structure is the arrangement of data in main memory, and the
concept of database, data warehouse, and big data will be covered in the
course. The fuel of big algorithms is data, and keeping it properly in the
hard disk is essential for efficient retrieval, updating, and deletion.
Although data warehousing is beyond the scope of this course, it's still
important to understand it. Data structures and algorithms are best
learned from C and C++, which provide a good picture of memory usage.
The concepts of stack and heap are essential in understanding how C
programs work, and space and time complexity will be covered in future
videos. Overall, this course will cover many data structure concepts, such
as linked lists, arrays, binary search trees, and more.
know these three terms because big data is what we are talking about
here .memory location where the C program stores the data that is to be
processed next and the heap is a memory location where the C program
stores the data that is to be processed next but the data that is to be
processed next is not always stored in the same location as the data that
is to be processed next because the C program can keep data in different
memory locations depending on the situation and this is why it is
important for you to understand the stack and heap because you will be
able to understand the C program better and be able to ask more
questions on the C program. Alright ... I 'm talking about C program that
's why I say that you get a good picture of memory with the help of C
programming therefore , data structures and algorithms is best learned
from C and C++ Now here I am dividing it into segments so there is thing
called code segment let 's say this is my code let 's say there is a code
with the name `` harry.c '' now this code will be first loaded into my main
memory I told you what is the first thing that happens ?then it will come
to this line it will come to fun1 ( ) , it will execute fun1 ( ) . fun2 ( ) is
calling inside fun1 ( ) now the variables that I had created inside it will be
created here let 's say I have created `` k '' & `` l '' let me write here :
initialize k and l and after that I 'm calling fun2 ( ) so as soon as fun2 ( )
will be called it will say to fun1 ( ) that you wait for a while , I call fun2 ( )
and be back by fetching the value whatever it will return fun1 ( ) replied
that you go and get it call fun2 ( ) and get its value .
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