Factorial Number Algorithms,Pseudocodes and Flowcharts

Programming Problem

Write an algorithm and pseudocode, draw a flowchart to ask the user to give a number and then, it will compute the factorial value of the given number and display the result on the screen.

Algorithm 

                                                                                         

Step 1:  Start

Step 2:  Declare variables a,f,i

Step 3:  Input Give a Number say a

Step 4:  Initialize f = 1

             Initialize i = 1

Step 5: WHILE i <= a

                f = f * i

               i = i + 1

            END

Step 6: Display f

Stop 7: Stop

Pseudocode

Start:

    Declare Integer a, f, i

    Output "Factorial Solver"

    Output "Give a Number:"

    Input a

    Assign f = 1

    Assign i = 1

    While i <= a

        Assign f = f * i

        Assign i = i + 1

    End

    Output "Factorial : " & f & "."

Stop:

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