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AVL_tree/huvud.cpp
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273
AVL_tree/huvud.cpp
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//##################################################################
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// PROGRAMMERINGSUPPGIFT 2
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// DATASTRUKTURER OCH ALGORITMER
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// AVL TRÄD
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//==================================================================
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// HUVUD.CPP
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// Filen innehåller huvudprogrammet
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// Christian Ohlsson
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// Karlstad 980927
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//==================================================================
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#include "header.hpp"
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//###############################################################
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// SÄKER INMATNING AV MENYVAL
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// ser till att bara en character matas in
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// som menyval som dessutom måste vara en siffra
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//===============================================================
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/*
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char mataInChar()
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{
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bool test = FALSE;
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char temp, svar;
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do {
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temp = getch();
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if(isalnum(temp) && test == FALSE) {
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cout << temp;
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svar = temp;
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test = TRUE;
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}
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else if(temp == BACKSPACE && test == TRUE) {
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gotoxy(wherex()-1, wherey());
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cout << " ";
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gotoxy(wherex()-1, wherey());
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test = FALSE;
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}
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}while(temp != ENTER || test == FALSE);
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return svar;
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}
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*/
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//##################################################################
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// SÄTTER IN EN NOD I TRÄD
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// calls: treeClass::insert, treeclass::seek, treeClass::setHeight
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// treeClass::rotation
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//==================================================================
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void _insert(treeClass &myTree)
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{
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nameType oneName;
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numberType number;
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int height=0;
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cout <<"\n Ange namn: ";
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cin >> oneName;
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if(strlen(oneName) > NAMESIZE)
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cout << "\n Man kan högst ange namnet med " << NAMESIZE << " tecken";
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else {
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if(myTree.seek(myTree.node, oneName) != NULL)
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cout << "\n Du har redan satt in "
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<< oneName << " i katalogen";
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else {
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cout <<"\n Ange telefonnummer: ";
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cin >> number;
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if (strlen(number) > NUMBERSIZE)
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cout << "\n Man kan högst ange nummret med " << NUMBERSIZE << " tecken";
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else {
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myTree.insert(myTree.node,oneName,number,height);
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myTree.setHeight(myTree.node);
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myTree.rotation(myTree.node);
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myTree.setHeight(myTree.node);
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return;
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}
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}
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}
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// getch();
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}
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//##################################################################
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// TAR BORT EN NOD UR TRÄD
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// calls: treeClass::del, treeClass::isEmpty, treeclass::seek
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// treeClass::setHeight, treeClass::rotation
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//==================================================================
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void _del(treeClass &myTree)
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{
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if(!myTree.isEmpty()) {
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nameType oneName;
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cout << "\n Vem vill du ta bort: ";
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cin >> oneName;
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if(strlen(oneName) > NAMESIZE)
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cout << "\n Man kan högst ange namnet med " << NAMESIZE << " tecken";
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else {
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if(myTree.seek(myTree.node, oneName) == NULL)
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cerr << "\n " << oneName << " finns inte i katalogen. ";
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else {
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myTree.del(myTree.node, oneName);
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myTree.setHeight(myTree.node);
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myTree.rotation(myTree.node);
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myTree.setHeight(myTree.node);
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return;
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}
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}
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}
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else
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cerr << "\n Telefonkatalogen är tom... ";
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// getch();
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}
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//##################################################################
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// SKRIVER UT I INORDER
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// calls: treeClass::inOrder, treeClass::isEmpty
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//==================================================================
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void _inOrder(treeClass myTree)
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{
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if(!myTree.isEmpty()) {
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// clrscr();
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cout << setw(NAMESIZE)
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<< "Namn"
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<< setw(NAMESIZE)
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<< "Telefon"
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<< setw(NAMESIZE)
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<< "Höjd \n"
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<< setw(NAMESIZE)
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<< " ------------------------------------------------------------------ \n";
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myTree.inOrder(myTree.node);
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}
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else
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cerr << "\n Telefonkatalogen är tom... ";
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// getch();
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}
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//##################################################################
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// SÖKER I TRÄDET
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// calls: treeClass::seek, treeClass::isEmpty
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//==================================================================
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void _seek(treeClass myTree)
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{
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if(!myTree.isEmpty()) {
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nameType oneName;
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cout << "\n Mata in namn: ";
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cin >> oneName;
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ptrType tempNode = myTree.seek(myTree.node, oneName);
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if(tempNode != NULL)
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cout << "\n " << tempNode->name
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<< " har telefonnummer: "
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<< tempNode->number;
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else
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cout << "\n " << oneName << " fanns inte med i katalogen...";
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}
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else
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cerr << "\n Telefonkatalogen är tom... ";
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// getch();
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}
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//##################################################################
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// SPARAR TRÄDET PÅ FIL
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// calls: treeClass::save, treeClass::isEmpty
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//==================================================================
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void _save(treeClass myTree)
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{
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if(!myTree.isEmpty()) {
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fstream fil;
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char filnamn[FILENAMESIZE];
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cout << "\n Ange filnamn att spara: ";
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cin >> filnamn;
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fil.open(filnamn,ios::out|ios::binary);
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myTree.save(myTree.node, fil);
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fil.close();
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}
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else {
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cerr << "\n Telefonkatalogen är tom...";
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// getch();
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}
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}
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//##################################################################
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// HÄMTAR ETT TRÄD FRÅN EN FIL
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// läser in värdet i varje nod i preorder
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// och sätter in det i trädet i preoder
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// calls treeClass::insert, treeClass::isEmpty, treeClass::setHeight
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// treeClass::rotation
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//==================================================================
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void _load(treeClass &myTree)
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{
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if(myTree.isEmpty()) {
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fstream fil;
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numberType number;
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nameType oneName;
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char filnamn[FILENAMESIZE];
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cout << "\n Ange filnamn att hämta: ";
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cin >> filnamn;
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fil.open(filnamn,ios::in|ios::binary);
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if(fil)
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while(fil.peek() != EOF) {
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fil.read((char*)&oneName,sizeof(oneName));
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fil.read((char*)&number,sizeof(number));
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myTree.insert(myTree.node, oneName,number,0);
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myTree.setHeight(myTree.node);
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myTree.rotation(myTree.node);
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myTree.setHeight(myTree.node);
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}
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else {
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cerr << "\n Filen finns inte...";
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// getch();
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}
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fil.close();
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}
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else {
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cerr << "\n Det finns redan personer i katalogen. \n"
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<< " Du måste ta bort samtliga personer \n"
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<< " genom att välja detta i menyn. \n";
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// getch();
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}
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}
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//##################################################################
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// DESTROYTREE
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// tar bort hela trädet
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// calls: treeClass::isEmpty, treeClass::destroyTree
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//==================================================================
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void _destroyTree(treeClass &myTree)
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{
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if(!myTree.isEmpty())
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myTree.destroyTree(myTree.node);
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else {
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cerr << "\n Telefonkatalogen är tom...";
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// getch();
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}
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}
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//##################################################################
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// MENY ITEMS
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// skriver ut menyn på skärmen
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//==================================================================
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void meny()
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{
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// clrscr();
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cout << " \n TELEFON KATALOGEN "
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<< " \n ----------------- "
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<< " \n 1. Lägg till person "
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<< " \n 2. Ta bort person "
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<< " \n 3. Sök efter person "
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<< " \n 4. Skriv ut i bokstavsordning "
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<< " \n 5. Spara på fil "
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<< " \n 6. Hämta från fil "
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<< " \n 7. Radera hela trädet "
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<< " \n 0. Avsluta "
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<< " \n ";
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// gotoxy(2,12); //ställer markören under menyn
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}
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//##################################################################
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// MAIN FUNCTION
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// skapar trädet myTree av typen treeClass
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// calls: alla drivrutiner
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//==================================================================
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void main()
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{
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treeClass myTree;
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char val;
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do {
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meny();
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cin >> val;
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// val = mataInChar();;
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switch (val)
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{
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case '1' : _insert(myTree);break;
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case '2' : _del(myTree);break;
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case '3' : _seek(myTree);break;
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case '4' : _inOrder(myTree);break;
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case '5' : _save(myTree);break;
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case '6' : _load(myTree);break;
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case '7' : _destroyTree(myTree);break;
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case '0' : cout << "\n Programmet avslutat";break;
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default : cerr << "\n Felaktigt val";
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// getch();
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}
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}while(val != '0');
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}
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