A beginner level programming event where you will take your first steps with the basic concepts of C. You will have skill checks in between, in the form of quizzes and you will also get hands-on exposure in this field.

1. Learn To Code: Introduction to C
Sharvaani Thoguluva
Technical
and
Non-Technical Team
Member
Achutha Dharani
Non-Technical Team
Member

2. The 3 W's of Coding
● What is Coding?
● Why should you learn to code?
● Where is coding used?

3. ● Coding is how we communicate with computers.
● Code tells a computer what actions to take, and writing code is
like creating a set of instructions.
● By learning to write code, you can tell computers what to do.
● You can use this skill to make websites and apps, and do
lots of other cool things.
What is Coding?

4. ● Programming helps to learn problem-solving skills
● Computer programming gives a challenge and helps
them develop resilience
● Coding teaches us how to think
● One can expand their creativity when they learn how
to code
● Computer programming is the future
Why should you learn to code?

5. ● Video Games
● Websites
● Smartphones
and a lot more...
Where do we use Coding?

6. ● C is a general-purpose programming language that is extremely popular,
simple, and flexible to use.
● It is a structured programming language that is machine-independent
and extensively used to write various applications.
● It is said that ‘C’ is the god of programming language.
● One can say, C is a base for the programming.
What is C Programming Language?

7. ● When we say Output, it means to display some data on screen, printer, or
in any file.
● C programming provides a set of built-in functions to output the data on
the computer screen as well as to save it in text or binary files.
Syntax:
● Normal expression: printf(“Expression to be typed”);
● Printing variable: printf(“%d”, sum);
● Printing expression with variable: printf(“The sum is %d”,sum);
Output in C

8. Datatypes
● Each variable in C has an associated data type. Each data type requires
different amounts of memory and has some specific operations which can be
performed over it.
● The C language provides the four basic arithmetic type specifiers char, int,
float and double, and the modifiers signed, unsigned, short, and long.
What are Datatypes?

10. ● A variable is a name of the memory location.
● It is used to store data.
● Its value can be changed
● It is a way to represent memory location through symbol so that it can be
easily identified.
Let's see the syntax to declare a variable:
type variablename;
Variables
A little into variables!

11. ● Local variable
● Global variable
● Static variable
● Automatic variable
● External variable
Types of Variables in C
There are many types of variables in c:

12. Rules For Defining Variables
Few rules to define a variable!
● A variable can have alphabets, digits, and underscore.
● A variable name can start with the alphabet, and underscore only. It can’t
start with a digit.
● No whitespace is allowed within the variable name.
● A variable name must not be any reserved word or keyword, e.g. int, goto ,
etc.

13. Input in C
• When we say Input, it means to feed some data into a program. An
input can be given in the form of a file or from the command line.
• C programming provides a set of built-in functions to read the given
input and feed it to the program as per requirement.
Syntax: scanf("%d", &intVariable);

14. Operators
● An operator is a symbol that operates on a value or a variable.
● For example: + is an operator to perform addition.
● C has a wide range of operators to perform various operations.

16. Control Structures
● Selection (Conditional) : Execution of a set of statements
when a particular condition is met
● Iteration (Loops): Repetition of the execution of a set of
statements as long as the condition is satisfied

17. if and else if
Selection
if if-else
Syntax
if (condition)
{
Statement;
………...
}
if (condition)
{
Statement;
}
else
{
Statement;
}

18. if else-if ladder and nested if
Selection
if else-if ladder nested if
Syntax
if (condition1)
{
Statements;
}
else if (condition2)
{
Statement;
}
else if (condition3)
{
Statement;
}
…..
else
{
Statement;
}
if (condition 1)
{
if (condition 2)
{
Statement;
}
………………...
}

19. Switch Case
Selection
Syntax
switch (expression)
{
case constant expression:
statements;
break;
case constant expression:
statements;
break;
default:
statements;
}

20. for loop
Iterations
Syntax
for (initialization; condition; increment)
{
statements;
}

21. while loop
Iterations
Syntax
while (condition)
{
statements;
}

22. Control Structures
Difference between for and while loops
For While
● Used only when the number of iterations
are known beforehand
● If the condition is not put, the loop will
repeat/iterate infinite number of times
● Initialization is not repeated
● Usually used when the number of
iterations are not known beforehand
● If the condition is not given, then it will
result into an error

23. Programming a formula
Write a program in C to find the sum of ‘N’ numbers.