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dafilipaj on 01/06/11

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Last Edited at 01/06/11 07:50am

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b_stablo_pokazivac.h

bstablo_pokazivac.h

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  1. struct element {
  2.     int label;
  3.     element *left,*right;
  4. };
  5. typedef element *cvor;
  6. typedef element bt;
  7.  
  8. bt* InitB(int x, bt* T){
  9.     T = new element;
  10.     T->label = x;
  11.     T->left = NULL;
  12.     T->right = NULL;
  13.     return T;
  14. }//initB
  15.  
  16. void CreateLeftB(int x, cvor n, bt* T){
  17.     if(n->left) {
  18.         cout << "Greska" << endl << endl;
  19.         return;
  20.     }
  21.     cvor novi = new element;
  22.     n->left = novi;
  23.     novi->label = x;
  24.     novi->left = NULL;
  25.     novi->right = NULL;
  26. }//CreateLeftB
  27.  
  28. void CreateRightB(int x, cvor n, bt* T){
  29.     if(n->right) {
  30.         cout << "Greska" << endl << endl;
  31.         return;
  32.     }
  33.     cvor novi = new element;
  34.     n->right = novi;
  35.     novi->label = x;
  36.     novi->left = NULL;
  37.     novi->right = NULL;
  38. }//createRightB
  39.  
  40. cvor ParentB(cvor n, bt* T){
  41.     if (n == T) return NULL;
  42.         cvor roditelj = NULL;
  43.         if (T->left){
  44.                 if (T->left == n) return T;
  45.                 else roditelj =  ParentB(n, T->left);
  46.         }
  47.         if(T->right){
  48.                 if (T->right == n) return T;
  49.                 else roditelj = ParentB(n, T->right);
  50.         }       
  51.         return roditelj;
  52. }//parentB
  53.  
  54. int LabelB(cvor n, bt* T){
  55.     return n->label;
  56. }//labelB
  57.  
  58. void ChangeLabelB(int x, cvor n, bt* T){
  59.     if(!n) return;
  60.     n->label = x;
  61. }//changeLabelB
  62.  
  63. cvor LeftChildB(cvor n, bt* T){
  64.     if(!n || !n->left) return NULL;
  65.     return n->left;  
  66. }//leftCildB
  67.  
  68. cvor RightChildB(cvor n, bt* T){
  69.     if(!n || !n->right) return NULL;
  70.     return n->right;  
  71. }//rightCildB
  72.  
  73. cvor RootB(bt* T){
  74.     if(!T) return NULL;
  75.     return T;
  76. }//rootB
  77.  
  78. void DeleteB(cvor n, bt* T){
  79.     static bool jednom = false;
  80.     if(!jednom) {
  81.       cvor roditelj = ParentB(n, T);
  82.       if(roditelj->left == n) roditelj->left = NULL;
  83.       else roditelj->right = NULL;
  84.       jednom = true;
  85.     }
  86.  
  87.     if(n->left) DeleteB(n->left, T);
  88.     if(n->right) DeleteB(n->right, T);
  89.     delete n;
  90. }//deleteB

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