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Title: Write your first program in C++
Description: in this doc we will understand data types, operators & variables.

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Lecture 2 Write Your First Program In C++

This is the 2nd lecture of our DSA series
...
This is how the compilation process work So it is compiler
which makes it possible for us to run a source code
...
Courses are available in both Hindi and English
...
There are many IDEs out there CodeBlocks, VsCode and many more - which you do n't even need to install Replit is one of
them
...
In C++, many namespaces
are there which have cout functions in them so if we want to use cout , we have to add this
file to our code
...
If you will
use > > by mistake by mistake, then it will give you compilation error So we use this operator
to display output
...
Whenever you have to story any
information or data in the memory
...
For eg- int a = 5, a is a variable in memory which is of int type and it has
value 5 in it
...

There is a function named sizeof , which will tell you about the space being used by any
variable
...
We have a way to story multiple characters
but we will see that in upcoming lectures
...
We will just store binary form of ASCII value of any character
...
This process of converting one data type into another
is known as type casting
...
Let 's say the
number is -5 1st - Ignore the negative sign 2nd - Convert into binary representation = 101
3rd - Take 2 's complement and store it Now we can store negative numbers simply too, by
just using their first bit as their sign
...
2/5 will give 0 and not 0
...
To get answer in float, store it in a float variable
...
logical operators have & &
and & is used to check multiple conditions
...
We
know what things to keep in mind while dividing , how to store negative numbers & &
operators and ! operators
...
We will do Bitwise operators later
Title: Write your first program in C++
Description: in this doc we will understand data types, operators & variables.