This content introduces a course on algorithms, emphasizing their critical importance in computer science for theoretical understanding, competitive exams, and practical programming. The goal is to simplify algorithm concepts for easy comprehension and retention.
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hello friends I'm going to start a
course on algorithms and whoever messes
up cake algorithm is a common subject
for computer science engineering
students most of the universities offer
this course as a part of syllabus and
this is a very cool subject and very
important subject and students face some
difficulties in some of the topics in
this one they could not understand them
very clearly so here I am going to make
the subject more and more simple so that
you can easily understand and even you
can practice that and also remember it
easily the importance of the subject is
that apart from theoretical examination
it is also important for competitive
exams and even programming contests most
of them are designed from this subject
only if any programming challenge is
there they mostly people come to
questions from this subject so this one
of the challenging subject for the
student because they get a chance to
solve different types of problems and
they give the strategy or approach for
solving the problem so some students
fail to understand it properly so they
could not get the approach for the
strategy for solving the problems and
they feel that they are lacking in the
logic development or strategy
development of a program so I'll be
covering in depth each and everything
right from the basics to the dead okay
so that you will be able to answer any
type of question from this forum I will
cover the topics such that just you look
at the question you can get asked that I
guarantee you right so the thing is I
will cover those points which are useful
for solving the motions some job
interviews or even for any other exam or
some entrance exams like eight exam the cushions
cushions
thing from algorithms also what is also
one of the key subject there so you will
be able to answer any type of question
from there not all the lectures in the
order I'll be giving the numbers for
each topic so that you follow that order
you follow the sequence because I may be
breaking the major topic into small
topics and one more important leanness
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let us start with just introduction what
is the main part on what is the length
autumn why this return when it is
written who will write it let us get
answers forties see algorithm as a
definition it's a common definition
everybody knows that it's a step by step
procedure for solving a computational
problem yes it is a step by step
procedure for solving a computational
problem then what is the program program
is also establish the procedure for
solving a problem then what is the
difference between program and Anegada
so by comparing program and Elgort or I
can make you understand the importance
here's an angora and here's a program
let us see the first thing first
difference if you know the software
development lifecycle means the phases
of developing a software project in the
phases of development of the project
there are two important phases design
phase and the implementation phase if
you are not aware of it let me get you
whatever you want to manufacture or
construct something by engineering
procedures then for step one if one of
the important step is designing first
you know designing make your design
perfect and thorough so that you can
understand what you are going to
construct what you are going to develop
and here near sure what you are going to
develop then you start the development
you can't develop anything you cannot
construct anything on trial and error
basis like you construct there's
something naughty endomorphs wrong
destroyed and I get create a new one so
no but it is easy easy in software
engineering software engineer can write
some program and change the mind delete
the program and again started in over
there so that's why we cannot get the
feeling that we have this set amount so
much amount of time in writing so
useless program so the point is first
you design and then you write the
program so at the design time what do
you use so you're not reading a program
then what do you write so that same
program we write it in simple English
like statements that are easy to
understand without using proper syntax
and we may not be ready
machine that is not computer remember I
came on paper or even if you're using a
machine also then you will not be
writing in some language you can you be
writing in ms word or notepad like
application so just you are getting
familiar how your program going to work
so that's nothing but an algorithm so
algorithm sorry is written at design
time and when the programs are done they
are internet implementation time the
design time an implementation time so
first you make a design what your
procedures going to do what your
software is going to do come up with
some design and that design your program
then what do you call the person who who
designing whatever program where doesn't
that yes if programmer is capable of
doing that he can do it otherwise the
person who will do this one should have
the domain knowledge the problems
knowledge knowledge about the
problematic solution
he can give a solution the one who
understand the problem and has the
domain knowledge
suppose you are developing a software or
a network come on a program for account
the accountant can understand accounting
better or if you are writing an
application or develop an application
for hospital then doctors of the
administrative staff of an Hospital
canvass and the system better than a
programmer so mostly the one who is
having a knowledge about the domain for
which the application is being developed
they can write on that so the person who
domain knowledge who would like to
program program so programmers can also
have the mid knowledge they can also
have the mandamus that he is acting as a
designer and here he is acting as a
programmer thanks what is the language
used for writing algorithm you can use
any language any language any English
language or you can use some
mathematical rotations if you are ready
English let language it will be like
reading power or somebody but don't
write if you can if you want you can use
mathematical notations also expect I
refuse mathematical notations so a
language have you used any language
means English language or some
mathematical notations can be use as
long as it is understandable by those
people who are using it like if a
designer has written an algorithm that
the programmer will be right in a
program fire so designers should
understand and also programmers should
understand that one right so the team of
programmers who are working on that
project should be able to understand it
then this is written only using
programming language like C C++ Java
Python right so you can use different
languages for developing a program the
next one more important thing is when
you write an algorithm is going to be
hardware and software means operating
system independent it's not dependent on
hardware what's machine you are going to
use what is the configuration of the
she were to the operating system me that
the Linux operating system or Windows
operating system we don't bother about
it but when you write the program it is
a dependent on hardware and operating
system so any other program you have to
sell it some hardware I'll be showing to
them and also you have to select some
operating system you may be doing it for
Linux or you will be need for Windows so
the method will be different and the
environment side-effect so is the
important the next after adding an
algorithm we analyze an imaginary part
on means you will study them to find out
are perfectly normal and our algorithm
is efficient or not in terms of time and
space we will see what does it mean by
now and access so we will analyze an
airport what do we do with the program
so you don't have to study the program
already program is there just run it and
testing testing of the programs that's
it these are few differences between
algorithm and program these differences
will be help you understand what our
algorithms alright now one more thing I
will tell you the syntax of the language
that we use any language can be use but
who actually write algorithms and who
use them and who write the programs of
programmers who are coming from
university graduates mostly Union City
graduate knows at least C language so
note is mostly in the name of algorithm
we write C language program only so the
benefit is better and what is that
everybody knows C language now so
instead of reading some other language
to confuse we can use C language movie
so that everybody can understand so even
at a school level C language is being
taught so everybody
so emergency language so I don't using C
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