Page 59 - Viva ICSE Computer Studies 8 : E-book

Branched Flowchart
Start
Sometimes the fl ow of steps in an algorithm
can branch into multiple paths based on how a
particular condition works out. Branching is the Is it Yes
process of following one or two or more alternate raining?
paths of computation. Let’s understand this with
an example. Suppose you have to leave home on No
any day in rainy season and you are wandering
about how to leave home. You can choose to Leave umbrella at home
carry an umbrella with you if it is raining or you
Take an umbrella
can leave the umbrella at home if it doesn’t rain.
Stop

A branched fl owchart
Do and Learn

Flowchart
1. Write an algorithm to find the area of a circle. Make a fl owchart for the same.
Steps to be Followed Start
Algorithm
Read
Step 1: Start
R
Step 2: Radius (R) of a circle
Step 3: Set Pi = 3.142 Set Pi = 3.142

Step 4: Area = Pi R R
* *
Step 5: Print the area. Area = Pi * R * R
Step 6: Stop
Flowchart Display Area

Start
Stop

Input number 2. Write an algorithm to find whether the given
number is even or odd. Also, make a flowchart
for the same.
Rem = number/2 Steps to be Followed

Algorithm
False Step 1: Start
Is Rem = 0 Step 2: Input the number

Step 3: If the number is divisible by 2, then print
True
Print ‘odd number’ that the number is even. Otherwise print
Print ‘even number’ that the number is odd.
Step 4: Stop

Stop

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