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Example 4: Write an algorithm and draw a flowchart to calculate the factorial of a number.
Algorithm: Flowchart:
Step 1 Start.
Start
Step 2 Read the number N.
Read N
Step 3 Let I=1, FACT=1
Step 4 Check If I < = N Then Repeat Step
I = 1, Fact = 1
5 and 6 until I=N
Step 5 FACT=FACT*I
If No
Step 6 I=I+1 I < = N
Step 7 Print FACT Yes
Step 8 End. FACT = FACT*I
Print FACT
I = I + 1
Stop
Critical Thinking
code Quest Information Literacy
Write an algorithm to calculate the area of a triangle.
Mind Map
A Mind Map is also a problem-solving technique that allows us to organise ideas, thoughts or
concepts and their relationship in a graphical manner.
In this technique, we pick up the ideas that have common features. These ideas are then grouped
under one category, and the different categories are linked to the main topic using lines or
arrows.
Algorithmic Intelligence 71

