Flow Charts

A flow chart is a thought process of what you are gonna make or create.

Let us first understand the basics through an example ->

Ques. Take a car name and output "He is having [car name] car.

Let us get started with symbols used in the flow chart :

1. start / stop -> oval or circle

2. Input / output -> parallelogram

3. Processing -> rectangle

4. condition -> rhombus

5. flow direction -> Arrow

EXAMPLE 2: Check if a number is a prime number or not.

Suppose your number = 7 and the numbersyou gonna check whether they are divisible by 7 not are [ 2,3,4,5,6] , now

1. c = 2

2. c < num ( 2 < 7) [yes it is smaller than 7]

3. num % c =0 ( 7 % 2 = 1), so c gets incremented by one number.

4. c = c + 1 (c = 3)

5. Again check ( 3 < 7) yes it is smaller .

6. Now moves to the next ( 7 % 3 =1) , again c gets incremented by one number.

7. c = c + 1 ( c = 4)

8. Again check ( 4 < 7)yes it is smaller than 7

9. Now move to the next step (7 % 4 =1), again c gets incremented by one number ,and it goes like this in the loop until c = 7.

10. When it checks now (c < num) = ( 7 < 7) it will move out of the loop and prints [ 7 is prime number].