We will learn about flow charts, pseudocode and programming languages. We will also learn about programming languages and why do we use them. After this, we will write our program. This will be our flow whenever we will solve any problem. First question, then given values, then approach and at last...
C++ Notes
We will learn about flow charts, pseudocode and programming languages. We will also learn
about programming languages and why do we use them. After this, we will write our program.
This will be our flow whenever we will solve any problem. First question, then given values, then
approach and at last we will code it. Bhaiya explains what is a flowchart is a diagramatic
approach of that approach known as flow chart. The flow chart constitute various components,
connected with each other Bhaiyan says. He says that from where a program is starting we have
a component called terminator. Terminator is used to show the start and end start of the
program. Next block is a simple rectangle, which shows a process. Bhaiya explains how to make
a flowchart for the sum of 2 numbers. He says the pseudocode as a whole is a generic way of
representing logic. The flow of a flow chart is the same as the flow of the components of the
flow chart. We use parallelogram to show the input/output of the program.
We want to make a flowchart for calculating simple interest This is the formula for simple
interest You must have studied it in your school We started our program from this start block I
do n't know p , r , t , so I need to take them as inputs first So I asked user to give me the values
for p, r and t So now I have P , R and T So I made this rectangular block for the calculation part
Here I wrote this formula After finding this answer in the above calculation , I have to print the
output too So here I will print output with this block print SI and then we will end this program
We started the program , took a , b as input then we checked whether a is less than b or not. If a
< b print `` YES '' else print `` NO '' and its done Simple You just have to write in english what you
are thinking and it is called pseudocode. If any number has 2 as its factor , then it is even
number or ODD number. We have to check a condition that whether N is ODD or EVEN , so we
will make one block for this condition Here is the decision making block , Is N % 2 = 0 ? We will
get 2 outputs , YES or NO If output is YES, then it is an EVEN number , so I printed ODD Else, I will
print ODD Then I made this end block and ended this program something like this This is the
flowchart for EVEN , ODD Got it right ? Bhaiya, why are you putting this inverting commas again
and again , you will come to know soon.
, We have to print something and then increment too You have to Print and then increase the
printed number too You can see here , we printed and then increased the numbe by 1 But we do
n't know how to do it How we will increase again and again Let 's rub it You know that we have to
start from 1 and print till 5 So if I give you a number which starts from 1 to 5, will it work ? Your
are like , yes , this is what we needed So I took a number =1 This is not a input , it is a process ,
so I wrote it inside rectangular block. You have to print all the odd numbers from 1 to N as a part
of your homework. The catch is , 1 and N are inclusive here in the answer should be 15. The
solution is easy , you just have to use less than equal to instead of less than. We know that we
have to start with num=1 and increment it till N I know N = 5 , Num =1 , and sum =0 in the
beginning. Then I added number in the sum and incremented the number by 1 and then again
did the same thing over and over again In the beginning , number is 1 , sum is 0 , then sum is 1
and number is 2 and we kep on doing so , till number < =5 Now let 's try to solve it. You will get
your homework after this. Prime numbers are those numbers which have only 2 factors , 1 and
that number itself.
Flowchart shows how to add conditions, loops, input/output, processing, processing and
start/end. We also learnt how to write pseudocode and how to talk about programming
languages We will answer only 2 questions - What is it ? and why we use it? You will get your
homework questions too. We learnt about flowcharts in this lecture, pseudocode and took an
overview of programming languages. Next lecture will be out tomorrow - most probably where
we will be writing our first C++ program - Namaste Duniya ( Hello world ) As a homework, you
have to write pseudocodes for all the questions we have solved today.
Chapter -2
This is the 2nd lecture of our DSA series. We will see how a program runs and what does each
line mean in this lecture. This is how the compilation process work So it is compiler which
makes it possible for us to run a source code. Coding Ninjas has supported us in providing this
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller deepakparashar. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
