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-Multiple Choices Algorithm - by Mark Kelly
+Aspiration interpretation Blinds, Shades precisely what goals fantasy to determine
-Another in the Fun with Algorithms series
-Stuff Pty Ltd sells stuff. The unit cost of the stuff varies according to the quantity ordered. Customers can order any number of items.  Stuff Pty Ltd use this scale:
--9 items = $100 each
--19 items = $97 each
--29 items = $92 each
--39 items = $88 each
--49 items = $85 each
-or more = $82 each
-Task: using pseudocode, create an algorithm to calculate the unit cost of the items at different quantities. Then calculate a total cost with 10% GST added.
-Convert the pseudocode into code.
-Create test data to fully test all aspects of the solution’s functionality.
-Note:  Input data need not be validated, and the interface can be very basic.
-Sample VB2010 solution
-Public Class Form1
-    ' Multiple options algorithm
-    ' by M.Kelly 10 May 2011
-    ' Version 1.0
-    ' To Do Next: nil
-    Private Sub btnCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalc.Click
-        Dim Qty As Integer = CInt(txtQty.Text)
-        Dim inctax As Single = 0  'declare and initialise in one hit
-        ' deliberately lacks validation of qty
-        Select Case Qty
-            Case 1 To 9
-                lblCostper.Text = 100
-            Case 10 To 19
-                lblCostper.Text = 97
-            Case 20 To 29
-                lblCostper.Text = 92
-            Case 30 To 39
-                lblCostper.Text = 88
-            Case 40 To 49
-                lblCostper.Text = 85
-            Case Else
-                lblCostper.Text = 82
-        End Select
-        lblSubtotal.Text = Qty * CInt(lblCostper.Text)  'using labels for output
-        'inctax is here as a sample use of variables for calculations and
-        'using labels just for display purposes.
-        'Using variables mean less converting back & forth between text and number.
-        inctax = CInt(lblSubtotal.Text) * 1.1           'add GST
-        'The final total is nicely formatted currency just to show how it's done.
-        'Nice formatting is not needed in U3O2.
-        lblIncTax.Text = Format(inctax, "$#,####.#0")
-    End Sub
-    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
-        End
-    End Sub
-End Class
-----
-Sample output
-Perhaps more decorative that it needs to be for U3O2, but I can’t abide messy interfaces.
-<can't insert image!>
-:-(
----------------------------------------------------------------------------------------------
-Fun with Algorithms - Mark Kelly
-Use flow charts or N-S charts to elegantly solve the following algorithms.  Some are harder than others...  Try actually coding it after doing the brainwork.
---
-Round any decimal number UP to the next highest multiple of 0.25.
---
-Convert any Roman number to decimal (e.g. MCMLXIX to 1969) - and/or vice versa
---
-Convert any binary number to decimal.
---
-Find the lowest (or greatest) common denominator of 2 integers (or report that there is no LCD or GCD).
---
-List prime numbers up to 100
---
-Simulate the display of a single-digit liquid crystal display
-Assume there are 7 LCD bars like this
- _
-|_|
-|_|
-Feed it any numeral or alphabetic character  in hexadecimal range (0 to F) and it should turn on the right bars.  (Efficiency is the key requirement here!)
---
-Given a price including 10% GST, give the ex-tax price and the tax component, e.g. $11 inc = $10 ex + $1 GST.
---
-Create a virtual deck of cards encoded as numbers 1 to 52.  Given any number from 1 to 52, the algorithm should return the suit and rank represented by the card.
---
-Create an algorithm to shuffle the virtual deck of cards
---
-Create an algorithm to play naughts and crosses - it should be unbeatable if the algorithm plays first.
---
-Given an number of dollars, calculate what notes or coins need to be given as change from $100.  e.g. $67 = 1 x $20, 1 x $10, 1 x $2, 1 x $1.
---
-An electrical company is developing a new main-powered sensorlight with the following requirements:
-•	It turns on its LED light for a predetermined time (e.g. 60 seconds) after sensing movement with its passive infrared (PIR) detector.
-•	It does not turn the light on if its light detector senses that the room is already well illuminated (e.g. during the day)
-•	While its light is on, any further movement detection resets the timer back to its starting value and the countdown starts again.
-Convert your algorithm into a working simulation of the light.  You will need to simulate:
-•	The day/night sensor (e.g. with radio buttons)
-•	The movement sensor (e.g. with a mouse click or keypress)
-•	The LED light (e.g. with a shape changing its colour)
-Show the value of the countdown time onscreen to verify its behaviour.
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