1. Be A programmer in 1 2 3 Steps
Learn C in 3 Steps
Be A programmer in Steps
Abhilash Badami

2. Steps Step 1 : Know the History of C Language
Step 2 : Why only C Language
Step 3 : Simple Problems Solving and Fun with Maths

3. History of C language
Many of the important ideas of C stem from the language BCPL, developed by Martin Richards.
The influence of BCPL on C proceeded indirectly through the language B, which was written by Ken Thompson in 1970.
In 1972 Dennis Ritchie at Bell Labs writes C and in 1978 the publication of The C Programming Language by Kernighan & Ritchie caused a revolution in the computing world.

4. Know more about C C language is a case sensitive language.
C language is an user defined language with large instruction sets.
C language uses compiler for convertion of code.
C language is a syntax oriented language.

5. Why only C Language
To learn the programming in c First you should know about the logic of it.
What is Logic then ?
Logic is the problem solving Method which the programmer will use before
Writing the Program.

6. There are two types of problem solving Methods
1. Flowchart
2. Algorithm
What is Flowchart then ?
Diagrammatic representation of the given problem Statement.
What is Algorithm ?
It is the Step by step representation of the given problem Statement.
Can we Solve a Problem With the Help of Flowchart and Algorithm ?
What is your answer ?

7. But in Math's We solve problems using Numbers
But in Math's We solve problems using Numbers ? Why flowchart and algorithm in “C”
Flowchart and algorithm are the two simple methods which will help the programmer to program the problem statement in C.
C language helps only to solve Mathematical Problems ?
No it also helps in solving the logical as well as ratios and many more.

8. Let us know more about Flowcharts
As we said flowcharts are the diagrammatic representations. Does it include circles , squares and rectangles?
Ans : Yes
Let us know which shape will do what action

9. = This shape indicates the Beginning and end of Flowchart ie: Start and End.
= This shape indicates the continuity of the flow chart.
= This shape indicates the decision making statements.
= This shape indicates the steps.
= This indicates the action
= Connecting Lines

10. Do you know about this symbols ..?
* Asterix - Used for multiplication operation
/ division slash – used for division operation
Can you identify this symbols ‘ + ‘ ‘ - ’
% Modules – used for division with reminder options

11. Let us solve a simple problem using Maths logic
Add two numbers
Sol :-
let a=5 and b=11
sum= a+b
sum= 5+11
sum= 16

12. Now we will solve the same problem using Flowchart
This Indicates the beginning of Flow Chart
Start
Where as both shapes indicates some action that is Input to PC
Input A=5
Input B=11
Arithmetic and logic operations are performed here
Sum = A+B
Print Sum
As we saw above this indicates action that is output
Indicates End of Flow Chart
END

13. Which is easy method of solving a problem ?
Yes C language is Easier than Math's Correct….!!
Ok , can we work on some other questions like this
Are you ready …???

14. Find the solutions for this questions
Draw a flow chart for subtraction
Draw a flow chart for division
Draw a flow chart for multiplication
Draw a flow chart for finding square of a number
Draw a flow chart for finding cube of a number

15. Flow chart for subtraction
Start
Input A=10
Input B=05
Sub = A - B
Print Sub
END

16. Flow Chart for Division
Start
Input A=10
Input B=05
div= A/B
Print Div
END

17. Flow Chart for Multiplication
Start
Input A=3
Input B=5
mul= A*B
Print Sum
END

18. Flow chart for finding square of number
Start
Input A=5
Square = A*A
Print squ
END

19. Flow Chart For finding Cube of number
Start
Input A=5
Cube= A*A*A
Print Cube
END

20. Yes I know you are thinking about Logical Problems right….!!
For solving Logical Problems we need to know about IF and ELSE statements.
Yes IF and ELSE statement are nothing like true or false statements
IF refers to : IF statement 1 is true print statement 1 ELSE print statement 2

21. Confused …!! Let me Explain
Assume two values as
A=5 and B=6
now we have to find biggest number between A and B If
A>B
print A is Big Number
Else
Print B is Big Number

22. Let us put the same problem in flow chart
This Indicates the beginning of Flow Chart
Start
Where as both shapes indicates action that is Input to PC
Input A=05
This Indicates Decision making of the input problem
Input B=06
If A is greater it prints A is big If
A>B
Else
Print A is big
Print B is big
If B is greater it prints B is big
True
False
What does this Indicate ?
END

23. Still Confused … !! Ok let me explain with different example Start
Input A=10
Input B=03 If
A>B
Else
Print A
Print B
True
False
END

24. Is there a way such that we need not to use IF and Else Statements …??
Yes we have some special instructions or operations such that if and else statements can be avoided.
If we have such instructions then why do we need IF and ELSE statements.
Because to Solve complex programs we need the help of IF and ELSE statements.

25. Take a look at this Flow Chart
Logic of this Flow Chart
Both inputs A and B are taken first
Use the special operation (A>B)?
This operation has an in built commend of
IF and ELSE statement.
It compares first a>b or not
If it is greater then it prints A is big
Else it goes to next step where it prints B is Big
Start
Input A=05
Input B=06
Big = (A>B)?
Print A is big
Print B is Big
END

26. Now you have to tell me answer for this
Start
What is your Answer
What does the computer print ..?
Input A=10
Input B=06
Big = (A>B)?
Print A is big
Print B is Big
END

27. END OF SESSION 1 Find Interesting topics in up coming sessions
Know about while loop , for loop , do while loop .
Know more about writing algorithms
Be a programmer…!!!

28. Future Projects

29. BE A HACKER All About Ethical Hacking Encode Decode Hack….!!!
Abhilash Badami

30. Thank you Q & A