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Datoteka zaglavlja- binarno stablo polje

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  1. #ifndef BSTABLO_POKAZIVAC_H
  2.  
  3. #ifndef BSTABLO_POLJE_H
  4. #define BSTABLO_POLJE_H
  5.  
  6. struct element{
  7.     labeltype label;
  8.     int used;
  9. };
  10. struct bt{
  11.     struct element elements[M_ELE];
  12. };
  13. typedef struct bt *btree;
  14. typedef int node;
  15.  
  16. btree InitB(labeltype x,btree T){
  17.      T = new bt;
  18.      T->elements[1].label = x;
  19.      T->elements[1].used = 1;
  20.      return T;
  21. }
  22. node ParentB(node n,btree T){
  23.      if(T==NULL) return 0;
  24.      if(n<2) return LAMBD;
  25.      return n/2;
  26. }
  27. node LeftChildB(node n,btree T){ 
  28.      if(T->elements[2*n].used == NISTA) return LAMBD;
  29.      return 2*n;
  30. }
  31. node RightChildB(node n,btree T){
  32.      if(T->elements[2*n+1].used == NISTA) return LAMBD;
  33.      return 2*n+1;     
  34. }
  35. labeltype LabelB(node n,btree T){
  36.      if(T==NULL) return 0;
  37.      if(T->elements[n].used == NISTA) return LAMBD;
  38.      return T->elements[n].label;
  39. }
  40. void ChangeLabelB(labeltype x,node n,btree T){
  41.      T->elements[n].label = x;
  42. }
  43. node RootB(btree T){
  44.      if(T==NULL) return 0;
  45.      if(T->elements[1].used == NISTA) return LAMBD;
  46.      return 1;
  47. }
  48. int CreateLeftB(labeltype x,node n,btree T){
  49.      if(T->elements[2*n].used == PUNO) return POGRESKA;
  50.      T->elements[2*n].used = PUNO;
  51.      T->elements[2*n].label = x;
  52.      return 0;
  53. }
  54. int CreateRightB(labeltype x,node n,btree T){
  55.      if(T->elements[2*n+1].used == PUNO) return POGRESKA;
  56.      T->elements[2*n+1].used = PUNO;
  57.      T->elements[2*n+1].label = x;
  58.      return 0;
  59. }
  60. bool ExistsLeftChildB(node n,btree T){
  61.      if(T==NULL) return LAMBD;
  62.      if(T->elements[n*2].used == PUNO) return true;
  63.      return false;
  64. }
  65. bool ExistsRightChildB(node n,btree T){
  66.      if(T==NULL) return LAMBD;
  67.      if(T->elements[n*2+1].used == PUNO) return true;
  68.      return false;
  69. }
  70. void DeleteB(node n,btree T){
  71.    if(ExistsLeftChildB(n,T)){
  72.        DeleteB(LeftChildB(n,T),T);
  73.    }
  74.    if(ExistsRightChildB(n,T)){
  75.        DeleteB(RightChildB(n,T),T);
  76.    }
  77.    T->elements[n].used = NISTA;
  78. }
  79.  
  80. #endif  /*BSTABLO_POLJE_H*/
  81.  
  82. #endif  /*BSTABLO_POKAZIVAC_H*/

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