Binary tree problem that i cannot solve :(

This is a discussion on Binary tree problem that i cannot solve :( within the C Programming forums, part of the General Programming Boards category; Hello, I made a simple binary tree. Code: have a structure NODE typedef struct node { char name[MAX]; char surname[MAX]; ...

  1. #1
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    Binary tree problem that i cannot solve :(

    Hello,

    I made a simple binary tree.
    Code:
    have a structure NODE 
    typedef struct node {
      char name[MAX];
      char surname[MAX];
      int counting;
      struct node *l, *r;
    } NODE;
    I have function,that make new nodes and insert nodes in to the tree.........
    For example i will put this in my tree.
    John Smith
    Adam Smith
    Mike Johnson
    Peter Thomas
    Steven Thomas

    I do not know how to write function,that will PRINT surnames only once,and will print number of appearance of surnames.

    PRINT RESULT will be like this :
    Smith 2
    Johnson 1
    Thomas 2

    Does anyone know how to write this function,that will print surnames only once ?

    Thanks in advantage!

  2. #2
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    Quote Originally Posted by sava View Post
    Does anyone know how to write this function,that will print surnames only once ?

    Thanks in advantage!
    I am sure there are many people here that know how to do it. What have you tried so far? Take a look at Preludes Binary Search Tree tutorial, that should give you a good starting point for this project.
    Quote Originally Posted by anduril462 View Post
    Now, please, for the love of all things good and holy, think about what you're doing! Don't just run around willy-nilly, coding like a drunk two-year-old....
    Quote Originally Posted by quzah View Post
    ..... Just don't be surprised when I say you aren't using standard C anymore, and as such,are off in your own little universe that I will completely disregard.
    Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.

  3. #3
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    Quote Originally Posted by sava View Post
    I do not know how to write function,that will PRINT surnames only once,and will print number of appearance of surnames.

    PRINT RESULT will be like this :
    Smith 2
    Johnson 1
    Thomas 2

    Does anyone know how to write this function,that will print surnames only once ?

    Thanks in advantage!
    Look up strcmp() and stricmp() in your C Library Documentation ... that should give you a pretty good hint how to do it.

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