generated from freudenreichan/info2Praktikum-DobleSpiel
final changes completed
This commit is contained in:
parent
bbf0460d1a
commit
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123
bintree.c
123
bintree.c
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#include <stdlib.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdio.h>
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#include <string.h>
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#include <string.h>
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#include "stack.h"
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#include "stack.h"
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#include "bintree.h"
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#include "bintree.h"
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static StackNode *push_left(TreeNode *node, StackNode *stack);
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static StackNode *push_left(TreeNode *node, StackNode *stack);
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/* Vergleichsfunktion */
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// Vergleichsfunktion
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int compareFct(const void *argument1, const void *argument2)
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int compareFct(const void *argument1, const void *argument2)
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{
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{
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int x = *((int *)argument1);
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int x = *((int *)argument1);
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int y = *((int *)argument2);
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int y = *((int *)argument2);
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if (x < y) return -1;
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if (x < y) return -1;
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if (x > y) return 1;
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if (x > y) return 1;
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return 0;
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return 0;
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}
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}
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/* Erzeugt einen neuen Baumknoten mit Datenkopie */
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// Erzeugt einen neuen Baumknoten mit Datenkopie
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static TreeNode *create_node(const void *data, size_t data_size)
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static TreeNode *create_node(const void *data, size_t data_size)
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{
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{
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TreeNode *node = malloc(sizeof(TreeNode));
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TreeNode *node = malloc(sizeof(TreeNode)); // Speicher für neuen Knoten reservieren
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if (!node)
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if (!node)
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{
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{
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perror("Speicher wurde NICHT reserviert!");
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perror("Speicher wurde NICHT reserviert!");
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return NULL;
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return NULL;
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}
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}
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node->data = malloc(data_size);
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node->data = malloc(data_size); // Speicher für Knotendaten reservieren
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if (!node->data)
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if (!node->data)
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{
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{
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perror("Speicher wurde NICHT reserviert!");
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perror("Speicher wurde NICHT reserviert!");
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free(node);
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free(node);
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return NULL;
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return NULL;
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}
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}
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memcpy(node->data, data, data_size);
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memcpy(node->data, data, data_size); // Daten in neuen Speicher kopieren
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node->left = NULL;
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node->left = NULL; // Linken Kindzeiger initialisieren
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node->right = NULL;
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node->right = NULL; // Rechten Kindzeiger initialisieren
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return node;
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return node; // Zeiger auf neuen Knoten zurückgeben
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}
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}
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/* Fügt Daten in den Binärbaum ein */
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//Fügt Daten in den Binärbaum ein
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TreeNode *addToTree(TreeNode *root, const void *data, size_t dataSize,
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TreeNode *addToTree(TreeNode *root, const void *data, size_t dataSize, CompareFctType compareFct, int *isDuplicate)
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CompareFctType compareFct, int *isDuplicate)
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{
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{
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if (root == NULL)
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if (root == NULL) // Wenn Baum leer ist (Ende erreicht)
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{
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{
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if (isDuplicate)
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if (isDuplicate)
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*isDuplicate = 0;
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*isDuplicate = 0; // Kein Duplikat, da neu eingefügt
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return create_node(data, dataSize);
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return create_node(data, dataSize);
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}
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}
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int cmp = compareFct(data, root->data);
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int cmp = compareFct(data, root->data); // Daten mit aktuellem Knoten vergleichen
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if (cmp < 0)
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if (cmp < 0)
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{
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{
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root->left = addToTree(root->left, data, dataSize, compareFct, isDuplicate);
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root->left = addToTree(root->left, data, dataSize, compareFct, isDuplicate);
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}
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}
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else if (cmp > 0)
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else if (cmp > 0)
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{
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{
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root->right = addToTree(root->right, data, dataSize, compareFct, isDuplicate);
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root->right = addToTree(root->right, data, dataSize, compareFct, isDuplicate);
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}
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}
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else
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else
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{
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{
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if (isDuplicate)
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if (isDuplicate)
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*isDuplicate = 1;
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*isDuplicate = 1;
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}
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}
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return root;
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return root; // Wurzel unverändert zurückgeben
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}
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}
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/* Inorder-Iterator über den Baum */
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// Inorder-Iterator über den Baum
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void *nextTreeData(TreeNode *root)
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void *nextTreeData(TreeNode *root)
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{
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{
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static StackNode *stack = NULL;
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static StackNode *stack = NULL;
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/* Neuer Start → linken Pfad auf Stack legen */
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/* Linken Pfad auf Stack legen */
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if (root != NULL)
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if (root != NULL)
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stack = push_left(root, stack);
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stack = push_left(root, stack); // Linken Pfad ab root auf Stack legen
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if (stack == NULL)
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if (stack == NULL)
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return NULL;
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return NULL;
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/* TOP lesen, dann POP */
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TreeNode *node = (TreeNode *)top(stack); // Oberstes Element vom Stack holen
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TreeNode *node = (TreeNode *)top(stack);
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stack = pop(stack);
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stack = pop(stack);
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if (node->right != NULL)
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if (node->right != NULL) // Wenn rechter Teilbaum existiert
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stack = push_left(node->right, stack);
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stack = push_left(node->right, stack); // Linken Pfad vom rechten Kind auf Stack legen
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return node->data;
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return node->data; // Daten des Knotens zurückgeben
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}
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}
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/* Hilfsfunktion: linken Pfad auf Stack legen */
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// Hilfsfunktion: linken Pfad auf Stack legen
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static StackNode *push_left(TreeNode *node, StackNode *stack)
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static StackNode *push_left(TreeNode *node, StackNode *stack)
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{
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{
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while (node != NULL)
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while (node != NULL) // Solange linkes Kind existiert
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{
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{
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stack = push(stack, node);
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stack = push(stack, node); // Knoten auf Stack legen
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node = node->left;
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node = node->left;
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}
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}
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return stack;
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return stack;
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}
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}
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/* Gibt gesamten Baum frei */
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// Gibt gesamten Baum frei
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void clearTree(TreeNode *root)
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void clearTree(TreeNode *root)
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{
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{
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if (root == NULL)
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if (root == NULL)
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return;
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return;
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clearTree(root->left);
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clearTree(root->left);
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clearTree(root->right);
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clearTree(root->right);
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free(root->data);
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free(root->data);
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free(root);
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free(root);
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}
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}
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// Liefert Anzahl der Knoten
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/* Liefert Anzahl der Knoten */
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unsigned int treeSize(const TreeNode *root)
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unsigned int treeSize(const TreeNode *root)
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{
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{
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if (root == NULL)
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if (root == NULL)
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return 0;
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return 0;
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return 1 + treeSize(root->left) + treeSize(root->right);
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return 1 + treeSize(root->left) + treeSize(root->right);
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}
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}
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@ -1,5 +1,6 @@
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thilo;19753
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thilo;19753
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thilo;14880
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thilo;14880
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max;14849
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thilo;14733
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thilo;14733
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player1;9956
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player1;9956
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player2;4988
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player2;4988
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