What is the answer for this question?

For a tree T, let nI denote the number of its internal nodes, and let nE denote the number of its external nodes. Show that if every internal node in T has exactly 3 children, then nE = 2 nI + 1.

Peter Lawrey wrote:
How does this question relate to Java Programming?Oh that's a whole unique class of posters here. The type that think "somewhere this touches Java, so it is a Java problem". Even if you are asking how to fix a bug in a piece of actionscript that is being called from a JSP, or a piece of CSS is misbehaving in IE7 which causes an applet to be displayed 10 pixels too far to the right. In this case the homework probably needs to be proven using a piece of Java code.
Hey, its convenient to ask such unrelated questions in a place where lots of people from different disciplines visit, right? SOMEONE must know the answer...

Similar Messages

  • What the answer for this  error on a Macintosh system, the application can not open because "NameRegistryLib" could not be found

    what the answer for this error, the application could not open because the "NameRegistryLib" could not be found

    http://www.everymac.com/mac-answers/mac-os-9-classic-support-faq/run-macos-9-on- intel-macs.html
    http://www.macwindows.com/Emulator-for-Mac-OS-9-in-OS-X-updated-for-Mountain-Lio n.html
    http://hints.macworld.com/article.php?story=20060509180914879
    How to run Classic (pre OS X) apps on Intel Macs  

  • Need the answers for following questions?

    can anybody  say the answers  for following questions?
    Data Dictionary :
    1) Diff between Append Structure and Include Structure ?
    2) What is Table Type ?
    3) How the table entries are going to store, Is it Case sensitive, or in Capital Letter or in Small letter or as we give ?
    4) How many indexes we can give for a table ?
    Reports :
    1) How can we enable the verticle scroll in a table control that comes in 2 nd screen of ME 21 T.code ?
    2) What is BSEG table  ?
    3) How can you create Table Control ?
    4) Diff between At Selection Screen on Field & At selection Screen Output ?
    5) What are things we need to take care before using the Read Statement ?Example of Read Statement with Index ?
    6) How many ways are there to select a Particular Data from the table ?
    7) I want fetch the 10 th row and 5 th column from the list, How will you do it ?
    BDC :
      1) If we write Transaction Statement 2 times for a application What happens ?
      2) If for Example , I had to upload 10 items for one header. The 5 items are uploaded, but the Sixth record is not uploaded ? How can you upload that data from 6 th Record ?
    3) Tell me the Detail Steps in uploading the Data from Application Server ?
    4) One Scenario, i am having 10 records in a file & when i am uploading the data everytime the 1st record is overlapping with already existing data, How you are going to handle this  ?
    5) What is meant by MASK in Upload function ?
    6) what are the parameters you will pass withine BDC_INSERT ?
    SAP- Script :
    1) I want to display quantity & Price based on Particular Language and Country in SAP Script , How we can do that ? One particular statement is there for that, What is that ?
    2) The Logo Upaloaded got Inverted , then How you are going to handle this situation ?
    3) The logo uploaded using RSTXLDMC programe, Where it is going to store ?
    4) can we see Tiff files in SE 78 T.code ? What are the file extension of Logo we can upload to SAP
    5) How to check the changes made in the standard layout set , other than using Utilities--- -> Print preveiw ?
    User Exit :
    1) Suppose i have used a fuction Module Exit, But is in Inactive status , What is The error it is going to give during runtime ?
    2) Suppose i want to delete the Function Module exit from one project and i want to use it for another project ? what are steps you follow to delete it  ?
    BADI
    1) Is that all the Predefined BADI's present  in SAP are reusable ?

    Data Dictionary :
    1) Diff between Append Structure and Include Structure ?
    Append Structure - This structure can be used only one time to append. Append structures are useful for standard tables.
    Include Structure - This structure can be used in multiple tables. Include structures are useful for our own custom tables.
    2) What is Table Type ?
    A table type is a type that describes the structure and functions of an internal table in the ABAP program. In simple words table table will act as an internal table without header line.
    3) How the table entries are going to store, Is it Case sensitive, or in Capital Letter or in Small letter or as we give ?
    Yes it is case sensitive.
    Use translate statement to convert Upper case or Lower case.
    4) How many indexes we can give for a table ?
    1 primary index automatically created and we can create up to 15 secondary indexes.
    Reports :
    1) How can we enable the verticle scroll in a table control that comes in 2 nd screen of ME 21 T.code ?
    set <tablecontrol>-lines = 0.this code you have to put in one suitable userexit.then it applies to standard tcode ME21N.
    2) What is BSEG table ?
    BSEG table is a FI table for Accounting Document details.
    3) How can you create Table Control ?
    controls : tabcont type tableview using screen '3000'.
    PROCESS AFTER INPUT
    MODULE mod AT EXIT-COMMAND.
    LOOP AT itab_table or LOOP "depending on whether we are using AT int_table
    MODULE modify_int_table.
    ENDLOOP.
    MODULE user_command.
    4) Diff between At Selection Screen on Field & At selection Screen Output ?
    AT-SELECTION SCREEN ON FIELD
    is to validate a particular selection screen field.
    if any error comes it will open only this field and other fields will be disabled.
    AT-SELECTION SCREEN OUTPUT
    is used to do dynamic screen modifications on the screen.
    5) What are things we need to take care before using the Read Statement ?Example of Read Statement with Index ?
    do sort before read data from table.
    6) How many ways are there to select a Particular Data from the table ?
    using views or directly u can select data.
    7) I want fetch the 10 th row and 5 th column from the list, How will you do it ?
    sorry...
    BDC :
    1) If we write Transaction Statement 2 times for a application What happens ?
    i think u got message like already that transaction was called like this..
    2) If for Example , I had to upload 10 items for one header. The 5 items are uploaded, but the Sixth record is not uploaded ? How can you upload that data from 6 th Record ?
    within the loop u have to write the code for the 6th record and then process again.
    3) Tell me the Detail Steps in uploading the Data from Application Server ?
    use DATASETS for uploading data from application server.
    4) One Scenario, i am having 10 records in a file & when i am uploading the data everytime the 1st record is overlapping with already existing data, How you are going to handle this ?
    write CLEAR statement before endloop.
    5) What is meant by MASK in Upload function ?
    sorry...
    6) what are the parameters you will pass withine BDC_INSERT ?
    TCODE-import parameter
    DYNPROTAB-tables parameter
    SAP- Script :
    1) I want to display quantity & Price based on Particular Language and Country in SAP Script , How we can do that ?
    One particular statement is there for that, What is that ?
    Actually u will get quantity and price based on language using SE63 transaction.it is used for language conversion.
    2) The Logo Upaloaded got Inverted , then How you are going to handle this situation ?
    just check the printer settings again.
    3) The logo uploaded using RSTXLDMC programe, Where it is going to store ?
    STXBITMAPS is the table which stores all the logos.
    4) can we see Tiff files in SE 78 T.code ? What are the file extension of Logo we can upload to SAP
    No we cannot upload .tiff files using SE78 ..here u can upload only bmp and jpg logos...if u want to upload .tiff files go to standard program RSTXLDMC..by using this you can do.
    5) How to check the changes made in the standard layout set , other than using Utilities--- -> Print preveiw ?
    by executing the formprogram.
    User Exit :
    1) Suppose i have used a fuction Module Exit, But is in Inactive status , What is The error it is going to give during runtime ?
    u didn't get any error message but that functionality cannot applied to it..thats it.
    2) Suppose i want to delete the Function Module exit from one project and i want to use it for another project ? what are steps you follow to delete it ?
    first go to that perticular project..within this u have one enhancement..just click on that one...and go to that function module which u are assigned..remove the code and activate..delete enhancement and activate that project..now u can use that enhancement in other projects.
    BADI
    1) Is that all the Predefined BADI's present in SAP are reusable ?
    here reusable means u can do multiple implementations for all BADI's.
    Rewards if it helpful.
    Dara.

  • I have a fairly new mac book pro with retina display- I have not tried installing anything other OS on it. In spite of that yesterday when I turned it on, I got the error: no bootable device insert boot disk and press any key. what is the reason for this?

    I swithced it on by clicking on options when I start up and then clicked on Macintosh HD. the other option was a question mark and network drive.
    Is there a way to ensure it never happens again, what is the cause for this problem, if I need to uninstall some application, i am happy to do it as long as I know what is causing this conflict.
    many thanks!

    Something is not making sense here.
    You claim this is a brand new machine and you have not tried to install Windows or Boot Camp.
    Then why would you ever even go into System Preferences > Startup Disk and choose Macintosh HD? It should have automatically booted into Macintosh HD.
    You're probably going to have to reinstall Mac OS X.

  • HT201363 I forget the answer for security question

    It forget the answer for security question what can I do

    You need to ask Apple to reset your security questions; this can be done by phoning AppleCare and asking for the Account Security team, or clicking here and picking a method, or if your country isn't listed in either article, filling out and submitting this form.
    They wouldn't be security questions if they could be bypassed without Apple verifying your identity.
    (106035)

  • TS1702 I use iphone5, I see an app update on the app store. but when App store and click on the update tab, it doesn't show me which application to update.. just give me a blank page.!!!! what is the solution for this.!!!!

    I use iphone5, I see an app update on the app store. but when App store and click on the update tab, it doesn't show me which application to update.. just gives me a blank page.!!!! I wouldn't able to know what app has to be updated, untill and unless i get check for each every app on the app store installed on my iphone... what is the solution for this.!!!! can any1 one help me out.!!!!

    Cc2528 wrote:
    The iTunes Store on my iPad is set up with all my music already. And at the very bottom it shows my apple Id username. The only place it shows the previous owners id is in the App Store...
    You can probably change the ID in the "iTunes and App stores" settings on the iPad....click on the wrong account ID , select sign out, then log in with your own ID, I have not done this but I think it works.....
    but I would be more inclined to to the factory reset and start afresh.

  • Adobe X PDF files converted to jpg, edited and converted back to PDF have ragged, unclear text.  I didn't have this problem with Acrobat 9 standard.  What is the remedy for this.  If this is the best I can expect, I won't be able to use X standard.

    Adobe X PDF files converted to jpg, edited and converted back to PDF have ragged, unclear text.  I didn't have this problem with Acrobat 9 standard.  What is the remedy for this.  If this is the best I can expect, I won't be able to use X standard.

    I can't imagine any worse workflow than converting to JPEG to edit text, then back to PDF. Text in a PDF is a vector thing, smooth at all resolutions. And JPEG is made for photos. EVERY conversion to JPEG and back loses quality but how much loss there is will vary.
    If you must go to an image format, try PNG.

  • I recently upgraded to Mac OS X.  I hadn't try to access anything in iWorks 09 since the upgrade, until now.  I get an error message when trying to open any of the iWorks 09 applications.  What's the fix for this?

    I recently upgraded to Mac OS X.  I haven't tried to access anything in iWorks 09 since the upgrade, until now.  I get an error message when trying to open any of the iWorks 09 applications.  What's the fix for this?

    Follow Sonicray's advice and when you post try to give as much info about your Mac, your OS, etc... Fill out your Profile info.

  • HT201441 Hi I bought a second-hand phone iphone4, I update the software when you want to activate the phone asked for my registration icloud I do not know what is the password for this registration, can you tell me how to go to the next step without such

    Hi I bought a second-hand phone iphone4, I update the software when you want to activate the phone asked for my registration icloud I do not know what is the password for this registration, can you tell me how to go to the next step without such registration in icloud
    my ICCID is 8935905000307066111

    Unfortunately, you cannot do very much with your phone unless you get assistance from the previous owner, they should either provide you with the password to unlock it or remove their account from the phone entirely remotely through iCloud.com > Find My Phone.

  • ANY BODY TELL ME WHAT IS THE REASON FOR THIS ERROR

    hi... experts....
        Iam having one screen in my previous module pool program....and now as per my requirement i added on e new field...
    for that...
      1. i declared one variable in top include...
      2. cretaed one more new block with help of box in layout screen..
      3. added some text field and inputput out field...
      4. and in that block i also added one line with test like... following...
    " NOTE: PLEASE ENTER THE ..... VALUE..."   Like this.... just for to give direction...
    so these are  the steps i taken to add new field to my screen... but here i am geting error ... while entering the value in that field and press any push button.... including back in that screen... like....
      "INVAILD FIELD FORMAT (SCREEN ERROR)"
    .... ANY BODY TELL ME WHAT IS THE REASON FOR THIS ERROR... COMMONLY???
    THANK YOU,,,
    NAVEEN..

    hi naveen,
    there can be problem from ur layout side.
    Goto SE51. in Layout editor make sure that the type in screen and in TOP Include is same.
    and if you are using currency field than it can also give error to you.
    if still you any error .
    give me type of variable whcih you defined in TOP and also code.
    give reward if helpfull.

  • When I try to install CS6 Design and Web Premium from a disk I get this message "We are unable to validate this serial number..." What is the reason for this?

    I purchased a disk copy of CS6 Design and Web Premium from a reputable seller last week and when I try to install it with the serial number I got it says "We are unable to validate this serial number for CS6 Design and Web Premium. Please contact Customer Support." What is the reason for this?
    Is the serial number invalid?

    Hi Ned,
    Thanks for the suggestion. I eventually got in touch with Adobe Technical Support and it turned out that my Adobe Application Manager was not the latest version. They downloaded the latest version and installed it and that seemed to solve the problem. I was able to install my CS6 Creative Suite and validate the serial number. All seems to be going well at the moment.

  • Deactivation of Photoshop CS3 leads to an error 1914:1 what ist the solution for this problem

    hello
    I try to deactivate photoshop CS3 on my win XP system. When I try this I get the error code 1914:1 . This says there are no activations. But when I try to activate it on the new WIN 7 system
    I get the message to many activations. What is the soltion for this problem?

    Contact support by web chat.
    Mylenium

  • I have my Adobe ID and the Adobe Digital Editions. But when I download an EPUB-ebook, I don´t see the ebook or "My Digital Editions-Bibliothek".What is the solution for this problem?

    @I have my Adobe ID and the Adobe Digital Editions. But when I download an EPUB-ebook, I don´t see the ebook or "My Digital Editions-Bibliothek".What is the solution for this problem?

    how can we solve the problem?
    I have my adob.e ID, downloaded Adobe Digital Editions.
    Whren I download EPUB-ebooks and want to use
    Digital Editions, nothing happens and appears!??
    Please give me a short feedback and help

  • I forget the answer for security questions and i didn't receive an email for it

    i forget the answer for security questions and i didn't receive an email for it

    You need to contact Apple. Click here, phone them, and ask for the Account Security team, or fill out and submit this form.
    (90813)

  • HT5699 I forgot the answers for security questions, how can I reset them and get the access back to the iTunes store?

    Need help to get access to iTunes store. I bought an iTunes card bor buying on iTunes store.
    I forgot the answers for security questions, how can I reset them and get the access back to the iTunes store?

    If you have a rescue email address (which is not the same thing as an alternate email address) set up on your account then go to https://appleid.apple.com/ and click 'Manage your Apple ID' on the right-hand side of that page and log into your account. Then click on 'Password and Security' on the left-hand side of that page and on the right-hand side you should see an option to send security question reset info to your rescue email address.
    If you don't have a rescue email address (you won't be able to add one until you can answer 2 of your questions) then you won't get the reset option - you will need to contact iTunes Support or Apple to get them reset.
    e.g. you can try contacting iTunes Support : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page, then Account Management , and then 'Forgotten Apple ID security questions'
    or try ringing Apple in your country and ask to talk to the Accounts Security Team : http://support.apple.com/kb/HE57
    When they've been reset (and if you don't already have a rescue email address) you can then use the steps half-way down this page to add a rescue email address for potential future use : http://support.apple.com/kb/HT5312 . Or you could change to 2-step verification : http://support.apple.com/kb/HT5570

Maybe you are looking for