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Title: Lecture 2: Write your first program in C++
Description: You can learn datatype, variable, operator.
Description: You can learn datatype, variable, operator.
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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: Lecture 2: Write your first program in C++
Description: You can learn datatype, variable, operator.
Description: You can learn datatype, variable, operator.