Pyramid stair step puzzle

Combinations to Reach Nth Stair by moving up one step or two step at a time.

http://digitalpbk.com/interview-questions/stairs-one-step-two-step-total-combination Combinations to Reach Nth Stair by moving up one step or two step at a time. None The answer to this can be found out by induction. To reach the Nth Stair, we can reach by jumping one step from the (N - 1)th stair or jumping 2 steps from the (N-2)th chair. If we denote Number of Ways of reach N as F(N) F(N) = F(N-1) + F(N-2). Does that ring any bells ? It is the general form of the Nth term of the Fibonacci sequence. So to reach the Nth stair, the (N+1)th number in the Fibonacci ...

Number of Tennis Balls to make a 4 sided pyramid of 25 levels

http://digitalpbk.com/interview-questions/number-tennis-balls-make-4-sided-pyramid-25-levels Number of Tennis Balls to make a 4 sided pyramid of 25 levels Answer : 5525 Balls Start from the top of the pyramid. For a pyramid of 1 level - Number of Tennis balls required is 1 For a pyramid of 2 level - Number of Tennis balls required is 1 + 4 For a pyramid of 3 level - Number of Tennis balls required is 1 + 4 + 9 For a pyramid of 4 level - Number of Tennis balls required is 1 + 4 + 9 + 16 How do you go about doing this is each level of N balls requires N+1 balls as support in the case ...

ckvo.exe Manual removal Steps

http://digitalpbk.blogspot.com/2008/12/ckvoexe-bat-cmd-virus-removal-manual.html ckvo.exe Manual removal Steps ckvo.exeThis virus is the same as amvo.exe and same steps should be followed to remove this virus. It creates autorun.inf and a .cmd file on all the partitions mounted on windows.Follow this guide to remove the virus.Cheers... ...

10 cricket balls one is heavier or lighter. Find the ball in 3 weighing chances.

http://digitalpbk.com/interview-questions/10-cricket-balls-one-heavier-or-lighter-find-ball-3-weighing-chances 10 cricket balls one is heavier or lighter. Find the ball in 3 weighing chances. None Lets name the balls 0 1 2 3 4 5 6 7 8 9 for convinience. Step 1 : Take 3 balls from this set lets take 0 1 2 and weigh it against 3 4 5. Weighing 1. Step 1.1 : Now suppose both of them are of different weight. It means 6 7 8 9 are all of identical weight and can be used as a reference. Step 1.1.1 : Take the lighter of the set, lets suppose it is 0 1 2 Step 1.1.2 : Weigh 0 1 2 against 6 7 8 (Reference ...

CHM Files Navigation to the webpage was cancelled

http://digitalpbk.com/windows-chm/chm-files-navigation-webpage-was-cancelled CHM Files Navigation to the webpage was cancelled Does this window appear when you open CHM files ? This happend to me after upgrading to Internet Exporer 7. If you are wondering why you cant read the CHM files, just do the steps below : Steps for solving Navigation to the webpage was cancelled Close the CHM fileOpen it again and you will get the same popup as shown below Uncheck the checkboxAlways ask before opening this file (Highlighted in the image above). Press Open Now ...

Improve Battery life of Nokia E series, while using WiFi

http://digitalpbk.com/nokia-e-series/nokia-e-series-wifi-connection-battery-drain-improve-battery-life Improve Battery life of Nokia E series, while using WiFi Nokia E Series (E63, E71, 72) phones seem to drain the battery sooner than usual when the wifi is turned on and used, hence here I show how to reduce the transmit power of the wifi antenna so that the battery lasts longer. To read more about e series, goto compare nokia e series post. Reducing antenna transmitt power of the nokia E series phone The following steps must be followed to reduce the transmit power of the wifi antenna ...

Brontok Virus manual removal steps

http://digitalpbk.com/virus/brontok-manual-removal-steps-free-tool Brontok Virus manual removal steps The Brontok virus is a commonly occuring virus and is transmitted mainly through removable Media drives such as Pen drives, Floppy Disks etc. Brontok appears in the form of a File Folder, with similar icons and has the same name as its parent folder. People tend generally to open the folder which in turn executes the virus. Read on to get rid of this virus. Brontok Virus Symptoms, How to detect Brontok In order to detect Brontok Virus on the system, watch ...

Correct Colors displayed on Laptop / LCD Screen on Windows 7

http://digitalpbk.com/howto/laptop-color-correction-gray-gamma-reddish-windows-7 color seems to be not the light gray color, then follow the steps given below to calibrate the color on Windows 7. Color Caliberation on Windows 7 Goto Control Panel > Appearence and Personalization > Display and click Calibrate Color as highlighted in the image given below: Follow the steps to correct the Gamma, and color balance. :) Laptop Windows How to ...

Google Go HelloWorld Example Program

http://digitalpbk.com/google-go/helloworld-example-program Google Go HelloWorld Example Program Go is a new language from Google, and here is the first step to learn it: Google Go Hello World File : hello.go package main import "fmt" func main() { fmt.Printf("Hello World !!! \n") } Compiling & Running 8g hello.go 8l hello.8 ./8.out Output Hello World !!! (Obviously :D ) Google Software ...

amvo.exe Virus Manual Removal Steps

http://digitalpbk.blogspot.com/2008/02/amvoexe-virus-usb-memory-stick.html amvo.exe Virus Manual Removal Steps IntroThis is a nasty virus, dont know who dropped it on me. It spreads via USB Memory Sticks. It cannot be seen in the process list, hides itself and hides all files. And my antivirus doesn't seem to find a problem! :(Some SymptomsCannot show hidden filesSlows down USB devicesAdds infections to plugged in USB devicesDrives open in new windows from My ComputerHow to get rid off?Step 1 The usual way is to Format the system, but it is not a permanent ...