Reply To: SOS!!!

[Humayan]

I have this binary seach tree ( hope this helps ) :
 

/*<br /> * Název programu:                ADT Binarni strom<br /> * Autor:                        Petr Bobek<br /> * Studijní skupina:                IT-01<br /> * Email autora:                    petr_bobek@centrum.cz<br /> * Datum vypracování:            26.10.2005<br /> * Stru&#269;ný popis &#345;eÅ¡ení:            Je uveden dale v programu<br /> */<br /> #include "iostream"<br /> #include "stdio.h"<br /> #include "conio.h"<br /> #include "malloc.h"<br /> #include "process.h"<br /> #include "stdlib.h"<br /> #include "string.h" //standardní knihovny<br /> using namespace std;<br /> typedef char tStr;<br /> struct uzel<br /> {<br />    int item;<br />    struct uzel *right;<br />    struct uzel *left;<br /> };<br /> typedef struct uzel * BST;<br /> typedef struct uzel uzel;<br /> bool Empty ( BST t )<br /> {<br />    if( t != NULL )<br />        return false;<br />    else<br />     return true;<br /> }<br /> void Initialize ( BST * t )<br /> {<br />    * t = NULL;<br />   <br /> }<br /> void DeleteTree ( BST t )<br /> {<br />    if ( t != NULL )<br />    {<br />        DeleteTree ( t-> left );<br />        DeleteTree ( t->right );<br />        free ( t );<br />    }<br /> }<br /> BST Search ( BST t, int x )<br /> {<br />    if( t == NULL )<br />    {<br />        cout << "item was not found!" << endl;<br />        return NULL;<br />    }<br />    if( x < t -> item )<br />    {<br />        return Search(  t -> left  , x );<br />    }<br />    else if( x > t -> item )<br />        return Search (  t -> right  , x );<br />    else<br />        return t;<br />   <br /> }<br /> BST Insert ( BST * t, int x )<br /> {<br />    if( * t == NULL )<br />    {<br />        * t = (struct uzel * ) malloc ( sizeof ( struct uzel ) );<br />        (* t ) -> item = x;<br />        ( * t ) -> left = ( * t ) -> right = NULL;<br />        return * t;<br />    }<br /> <br />    if( ( *t ) -> item > x)<br />    Insert (  &#038; ( ( * t ) -> left  )  , x );<br />    else<br />    Insert (  &#038; ( ( * t ) -> right  ) , x );<br />      <br />   <br /> }<br /> BST findmin ( BST t )<br /> {<br />  <br />  while ( t -> left )<br />   t = t -> left;<br />  return t;<br />  <br /> }<br /> BST findmax ( BST t )<br /> {<br />    while ( t -> right )<br />    t = t -> right;<br />    return t;<br />   <br /> }<br /> void removeMin ( BST * t )<br /> {<br />     while ( ( * t ) -> left )<br />   ( * t ) = ( * t ) -> left;<br />  <br />  BST  temp =  * t;<br />   * t  =   ( ( * t ) -> right );<br />  free (  temp );<br /> <br /> }<br /> //THIS DOESN'T LOOK RIGHT<br /> BST Delete ( BST * t, int x )<br /> {<br />    BST pom_bunka;<br />    if( t == NULL )<br />    {<br />        cout << " Cannot delete, bin. tree is empty !"<< endl;<br />        return NULL;<br />    }<br />    if ( x < ( * t ) -> item )<br />       Delete ( &#038; ( ( * t ) -> left ) , x );<br />    else if ( x > ( * t ) -> item )<br />       Delete ( &#038; ( ( * t ) -> right ) , x );   <br />    else if ( ( * t ) -> right != NULL &#038;& ( * t ) -> left  != NULL )<br />    {<br />        BST temp = findmin ( ( * t ) -> right );<br />        ( * t ) -> item = temp -> item;<br />        removeMin ( &#038; (( * t ) -> right ) );<br />    }<br />    else<br />    {<br />     BST  temp =   * t ;<br />     if ( ( * t ) -> left != NULL )<br />    * t = ( * t ) -> left;<br />     else<br />      * t = ( * t ) -> right;<br />     free ( temp  );<br />  }<br /> }<br /> void Preorder ( BST t )<br /> {<br />    if ( t != NULL )<br />    {<br />        cout << t -> item << endl;<br />        Preorder ( t -> left );<br />        Preorder ( t -> right ) ;<br />    }<br />  <br />   <br /> }<br /> void Inorder ( BST t )<br /> {<br />    if ( t != NULL )<br />    {<br />        Inorder ( t -> left );<br />        cout << t -> item << endl;<br />        Inorder ( t -> right );<br />    }<br /> }<br /> void Postorder ( BST t )<br /> {<br />    if ( t != NULL )<br />    {<br />        Postorder ( t -> left );<br />        Postorder ( t -> right );<br />        cout << t -> item << endl;<br />    }<br /> }<br /> int getData ( void )<br /> {<br />    <br />     cout << "Get data: ";<br />     int data;<br />     cin >> data;<br />     return data;<br /> }<br /> /*<br /> void VypisSeznam(BST t){<br />     tStr data;<br />     cout << "Obsah seznamu:";<br />     if (Empty(t)==true){<br />        cout<<" NULL"<<endl;<br />     }<br />     else{<br />        data = t->item;<br />        cout << data << ", ";<br />     }<br /> }<br /> */<br /> void Menu ( void )//vypis menu<br /> {<br />     cout << "nGet number 0-7: nn";<br />     cout << "0: Inicializen";<br />     cout << "1: Insertn";<br />     cout << "2: Searchn";<br />     cout << "3: Preordern";<br />     cout << "4: Inordern";<br />     cout << "5: Postordern";<br />     cout << "6: Deleten";<br />     cout << "7: Delete treen";<br />     cout << "M: Menun";<br />     cout << "E: Endn";<br /> }<br /> int main()<br /> {<br />   <br />    char znak;<br />    BST strom = 0 ; //root ?<br />    int data;<br />    //tStr data;<br />    do {<br />        Menu();<br />     cout << "nnEnter Choice ! >> ";<br />        cin >> znak;<br />        switch ( toupper ( znak ) )<br />        {<br />               case '0' :  cout << "Inicialize - inicializuje stromn";<br />                           Initialize ( &#038; strom );<br />                           //VypisSeznam(strom);<br />                    break;<br />               case '1' :  cout << "Insert - vlozi do stromu novy uzeln";<br />                           cout << "Get data: ";<br />         cin >> data;<br />                           Insert( &#038; strom , data );<br />                           //VypisSeznam(strom);<br />                    break;<br />               case '2' :  cout << "Search - vyhleda uzeln";<br />                           Search(strom, getData());<br />                           cout<<strom<<endl;<br />                    break;<br />               case '3' :  cout << "Preorder - projde strom pruchodem preordern";<br />                           Preorder(strom);<br />                    break;<br />               case '4' :  cout << "Inorder - projde strom pruchodem inordern";<br />                           Inorder(strom);<br />                    break;<br />               case '5' :  cout << "Postorder - projde strom pruchodem postordern";<br />                           Postorder(strom);<br />                    break;<br />               case '6' :  cout << "Delete - smaze ze stromu uzeln";<br />                           Delete( &#038; strom, getData());<br />                    break;<br />               case '7' :  cout << "Delete Tree - smaze cely stromn";<br />                           DeleteTree(strom);<br />                    break;<br />               case 'M' : Menu();<br />                    break;<br />               case 'E' :<br />                    break;<br />               default : cout << "Zadali jste nespravny znak!!!n";<br />        }<br />    } while (toupper(znak) != 'E');<br />    return 0;<br /> }

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/*<br /> * Název programu:                ADT Binarni strom<br /> * Autor:                        Petr Bobek<br /> * Studijní skupina:                IT-01<br /> * Email autora:                    [email protected]<br /> * Datum vypracování:            26.10.2005<br /> * Stru&#269;ný popis &#345;eÅ¡ení:            Je uveden dale v programu<br /> */<br /> #include "iostream"<br /> #include "stdio.h"<br /> #include "conio.h"<br /> #include "malloc.h"<br /> #include "process.h"<br /> #include "stdlib.h"<br /> #include "string.h" //standardní knihovny<br /> using namespace std;<br /> typedef char tStr;<br /> struct uzel<br /> {<br />    int item;<br />    struct uzel *right;<br />    struct uzel *left;<br /> };<br /> typedef struct uzel * BST;<br /> typedef struct uzel uzel;<br /> bool Empty ( BST t )<br /> {<br />    if( t != NULL )<br />        return false;<br />    else<br />     return true;<br /> }<br /> void Initialize ( BST * t )<br /> {<br />    * t = NULL;<br />   <br /> }<br /> void DeleteTree ( BST t )<br /> {<br />    if ( t != NULL )<br />    {<br />        DeleteTree ( t-> left );<br />        DeleteTree ( t->right );<br />        free ( t );<br />    }<br /> }<br /> BST Search ( BST t, int x )<br /> {<br />    if( t == NULL )<br />    {<br />        cout << "item was not found!" << endl;<br />        return NULL;<br />    }<br />    if( x < t -> item )<br />    {<br />        return Search(  t -> left  , x );<br />    }<br />    else if( x > t -> item )<br />        return Search (  t -> right  , x );<br />    else<br />        return t;<br />   <br /> }<br /> BST Insert ( BST * t, int x )<br /> {<br />    if( * t == NULL )<br />    {<br />        * t = (struct uzel * ) malloc ( sizeof ( struct uzel ) );<br />        (* t ) -> item = x;<br />        ( * t ) -> left = ( * t ) -> right = NULL;<br />        return * t;<br />    }<br /> <br />    if( ( *t ) -> item > x)<br />    Insert (  &#038; ( ( * t ) -> left  )  , x );<br />    else<br />    Insert (  &#038; ( ( * t ) -> right  ) , x );<br />      <br />   <br /> }<br /> BST findmin ( BST t )<br /> {<br />  <br />  while ( t -> left )<br />   t = t -> left;<br />  return t;<br />  <br /> }<br /> BST findmax ( BST t )<br /> {<br />    while ( t -> right )<br />    t = t -> right;<br />    return t;<br />   <br /> }<br /> void removeMin ( BST * t )<br /> {<br />     while ( ( * t ) -> left )<br />   ( * t ) = ( * t ) -> left;<br />  <br />  BST  temp =  * t;<br />   * t  =   ( ( * t ) -> right );<br />  free (  temp );<br /> <br /> }<br /> //THIS DOESN'T LOOK RIGHT<br /> BST Delete ( BST * t, int x )<br /> {<br />    BST pom_bunka;<br />    if( t == NULL )<br />    {<br />        cout << " Cannot delete, bin. tree is empty !"<< endl;<br />        return NULL;<br />    }<br />    if ( x < ( * t ) -> item )<br />       Delete ( &#038; ( ( * t ) -> left ) , x );<br />    else if ( x > ( * t ) -> item )<br />       Delete ( &#038; ( ( * t ) -> right ) , x );   <br />    else if ( ( * t ) -> right != NULL &#038;& ( * t ) -> left  != NULL )<br />    {<br />        BST temp = findmin ( ( * t ) -> right );<br />        ( * t ) -> item = temp -> item;<br />        removeMin ( &#038; (( * t ) -> right ) );<br />    }<br />    else<br />    {<br />     BST  temp =   * t ;<br />     if ( ( * t ) -> left != NULL )<br />    * t = ( * t ) -> left;<br />     else<br />      * t = ( * t ) -> right;<br />     free ( temp  );<br />  }<br /> }<br /> void Preorder ( BST t )<br /> {<br />    if ( t != NULL )<br />    {<br />        cout << t -> item << endl;<br />        Preorder ( t -> left );<br />        Preorder ( t -> right ) ;<br />    }<br />  <br />   <br /> }<br /> void Inorder ( BST t )<br /> {<br />    if ( t != NULL )<br />    {<br />        Inorder ( t -> left );<br />        cout << t -> item << endl;<br />        Inorder ( t -> right );<br />    }<br /> }<br /> void Postorder ( BST t )<br /> {<br />    if ( t != NULL )<br />    {<br />        Postorder ( t -> left );<br />        Postorder ( t -> right );<br />        cout << t -> item << endl;<br />    }<br /> }<br /> int getData ( void )<br /> {<br />    <br />     cout << "Get data: ";<br />     int data;<br />     cin >> data;<br />     return data;<br /> }<br /> /*<br /> void VypisSeznam(BST t){<br />     tStr data;<br />     cout << "Obsah seznamu:";<br />     if (Empty(t)==true){<br />        cout<<" NULL"<<endl;<br />     }<br />     else{<br />        data = t->item;<br />        cout << data << ", ";<br />     }<br /> }<br /> */<br /> void Menu ( void )//vypis menu<br /> {<br />     cout << "nGet number 0-7: nn";<br />     cout << "0: Inicializen";<br />     cout << "1: Insertn";<br />     cout << "2: Searchn";<br />     cout << "3: Preordern";<br />     cout << "4: Inordern";<br />     cout << "5: Postordern";<br />     cout << "6: Deleten";<br />     cout << "7: Delete treen";<br />     cout << "M: Menun";<br />     cout << "E: Endn";<br /> }<br /> int main()<br /> {<br />   <br />    char znak;<br />    BST strom = 0 ; //root ?<br />    int data;<br />    //tStr data;<br />    do {<br />        Menu();<br />     cout << "nnEnter Choice ! >> ";<br />        cin >> znak;<br />        switch ( toupper ( znak ) )<br />        {<br />               case '0' :  cout << "Inicialize - inicializuje stromn";<br />                           Initialize ( &#038; strom );<br />                           //VypisSeznam(strom);<br />                    break;<br />               case '1' :  cout << "Insert - vlozi do stromu novy uzeln";<br />                           cout << "Get data: ";<br />         cin >> data;<br />                           Insert( &#038; strom , data );<br />                           //VypisSeznam(strom);<br />                    break;<br />               case '2' :  cout << "Search - vyhleda uzeln";<br />                           Search(strom, getData());<br />                           cout<<strom<<endl;<br />                    break;<br />               case '3' :  cout << "Preorder - projde strom pruchodem preordern";<br />                           Preorder(strom);<br />                    break;<br />               case '4' :  cout << "Inorder - projde strom pruchodem inordern";<br />                           Inorder(strom);<br />                    break;<br />               case '5' :  cout << "Postorder - projde strom pruchodem postordern";<br />                           Postorder(strom);<br />                    break;<br />               case '6' :  cout << "Delete - smaze ze stromu uzeln";<br />                           Delete( &#038; strom, getData());<br />                    break;<br />               case '7' :  cout << "Delete Tree - smaze cely stromn";<br />                           DeleteTree(strom);<br />                    break;<br />               case 'M' : Menu();<br />                    break;<br />               case 'E' :<br />                    break;<br />               default : cout << "Zadali jste nespravny znak!!!n";<br />        }<br />    } while (toupper(znak) != 'E');<br />    return 0;<br /> }