ALGORITHMS & FLOWCHART
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1. What is Algorithm?
Ans: Before writing
a program code for a given problem in computer science, it is essential to
design a set of steps to be followed to solve the problem successfully. This
set of steps is called an algorithm.
Ans: Flowchart is a diagrammatic representation of
the step-by-step plan to be followed for solving a task/problem. This
diagrammatic representation is made up of shapes like boxes, diamonds,
parallelograms, circles, ellipses connected by arrows. Each shape acts as a
step in the solution, and the arrows represent the direction of flow among the
steps.
3.
Symbols used in a Flowchart
4. Benefits of using a Flowchart
1. It helps to
explain our approach towards solving a problem
2. It gives a
visual clarity to a problem.
3. It helps in
practical problem solving
4. If we need to
understand the code, we can refer to the flowchart.
Simple Example of an Algorithm
Topic: Making a Sandwich
Algorithm Steps:
Step1:
Take two slices of bread.
Step2: Spread butter on one slice.
Step3: Put some jam on the other slice.
Step4: Press both slices together.
Step5: Serve the sandwich.
Simple Programming Example:
Task: Add two numbers
Algorithm:
- Start
- Take two numbers (example: 5 and 3)
- Add the two numbers
- Show the result
- End
Simple Example of Flowchart
Topic: Making Maggi
- Start (Oval)
- Get Maggi, Masala & Water (Parallelogram – Input)
- Boil water (Rectangle – Process)
- Add Maggi & Tastemaker (Rectangle – Process)
- Cook for 2 minutes (Rectangle – Process)
- Serve in bowl (Rectangle – Process)
- Eat / Serve hot (Parallelogram – Output)
- End (Oval)
Simple Example of Flowchart
Topic: Add 2 numbers
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