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start [2011/05/10 11:30]
kel 		start [2013/03/07 02:16]
pcguruz
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-Multiple Choices Algorithm - by Mark Kelly +PC Guruz provides computer repair ​ to the residents ​of Toronto | Canada ​to New York | USA. Our Computer Support staff can visit onsite call us at 1.800.383.5014 for 24/7 support ​and service. Technicians are available ​to assist you remotely ​for your personal ​or business IT needs.PC Guruz services ​to home and office users at incredible price in Canada ​and USA.Our Microsoft ​and Comptia A+ Certified computer repair technicians are well experienced. Simple ​to major computer problems can be resolved ​by our Tech team. Any kind of hardware repair required we are there to assist you. Network issues can be resolved by our expert team of technicians. Technician can help you with Printers installation, BlackBerry setup and other peripheral devices not only onsite but remotely ​as well.The computer]] repair problems can range from a minor setting ​that is incorrect,spyware, viruses ​and as far as replacing hardware or an entire operating system. 
- +http://www.pc-guruz.com
-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: +
-1-9 items = $100 each +
-10-19 items = $97 each +
-20-29 items = $92 each +
-30-39 items = $88 each +
-40-49 items = $85 each +
-50 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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