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bc923cca9f
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bc923cca9f | ||
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25c5a9ea5f | ||
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5ed4a367c8 |
+124
-16
@@ -1,36 +1,144 @@
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#include <stdlib.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 "bintree.h"
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#include "bintree.h"
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#include "stack.h"
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//TODO: binären Suchbaum implementieren
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/* Fügt eine Kopie der Daten in den Baum ein, geordnet nach compareFct. Akzeptiert Duplikate,
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/* * `addToTree`: fügt ein neues Element in den Baum ein (rekursiv),
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wenn isDuplicate NULL ist, andernfalls ignoriert Duplikate und setzt isDuplicate auf 1 (oder auf 0 bei neuem Eintrag). */
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* `clearTree`: gibt den gesamten Baum frei (rekursiv),
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* `treeSize`: zählt die Knoten im Baum (rekursiv),
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* `nextTreeData`: Traversierung mit Hilfe des zuvor implementierten Stacks. */
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// Adds a copy of data's pointer destination to the tree using compareFct for ordering. Accepts duplicates
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// if isDuplicate is NULL, otherwise ignores duplicates and sets isDuplicate to 1 (or to 0 if a new entry is added).
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TreeNode *addToTree(TreeNode *root, const void *data, size_t dataSize, CompareFctType compareFct, int *isDuplicate)
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TreeNode *addToTree(TreeNode *root, const void *data, size_t dataSize, CompareFctType compareFct, int *isDuplicate)
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{
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{
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// Überprüfe ungültige Eingabeparameter
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if (compareFct == NULL || data == NULL || dataSize == 0)
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return root; // ungültige Eingabe: nichts tun
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// Wenn der Baum leer ist, erstelle einen neuen Wurzelknoten
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if (root == NULL)
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{
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TreeNode *node = (TreeNode *)malloc(sizeof(TreeNode));
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if (node == NULL)
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return NULL; // Speicherallokation fehlgeschlagen
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node->data = malloc(dataSize);
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if (node->data == NULL)
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{
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free(node);
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return NULL;
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}
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memcpy(node->data, data, dataSize);
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node->left = NULL;
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node->right = NULL;
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if (isDuplicate != NULL)
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*isDuplicate = 0;
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return node;
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}
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// Vergleiche neue Daten mit aktueller Wurzel
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int cmp = compareFct(data, root->data);
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// Wenn neue Daten kleiner sind, füge in linken Unterbaum ein
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if (cmp < 0)
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{
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root->left = addToTree(root->left, data, dataSize, compareFct, isDuplicate);
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}
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// Wenn neue Daten größer sind, füge in rechten Unterbaum ein
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else if (cmp > 0)
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{
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root->right = addToTree(root->right, data, dataSize, compareFct, isDuplicate);
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}
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// Wenn gleich (Duplikat)
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else
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{
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// Wenn Duplikate erkannt werden sollen, setze Flag und ignoriere
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if (isDuplicate != NULL)
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{
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*isDuplicate = 1;
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}
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// Andernfalls erlaube Duplikate durch Einfügen in rechten Unterbaum
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else
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{
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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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return root;
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}
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}
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// Iterates over the tree given by root. Follows the usage of strtok. If tree is NULL, the next entry of the last tree given is returned in ordering direction.
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/* Iteriert über den Baum in aufsteigender Reihenfolge (in-order).
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// Use your implementation of a stack to organize the iterator. Push the root node and all left nodes first. On returning the next element,
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Verwendet die Logik von strtok: Wenn root != NULL, initialisiere/reset Iterator für diesen Baum.
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// push the top node and push all its left nodes.
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Wenn root == NULL, setze Iteration von letzter Position fort.
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Verwendet Stack zur Verwaltung des Traversierungs-Zustands. */
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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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// Statischer Stack zur Aufrechterhaltung des Iterator-Zustands zwischen Aufrufen
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static StackNode *iterStack = NULL;
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// Wenn ein neuer Baum bereitgestellt wird, initialisiere den Iterator
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if (root != NULL)
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{
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// Lösche vorherigen Iterator-Zustand
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clearStack(iterStack);
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iterStack = NULL;
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// Pushe die Wurzel und alle linken Nachfahren auf den Stack
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TreeNode *cur = root;
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while (cur != NULL)
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{
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iterStack = push(iterStack, cur);
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cur = cur->left;
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}
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}
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else
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{
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// Wenn Iteration fortgesetzt wird, aber kein Stack initialisiert, gib NULL zurück
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if (iterStack == NULL)
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return NULL;
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}
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// Wenn Stack leer ist, keine weiteren Elemente
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if (iterStack == NULL)
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return NULL;
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// Poppe den nächsten Knoten vom Stack (in-order-Traversierung)
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TreeNode *node = (TreeNode *)top(iterStack);
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iterStack = pop(iterStack);
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// Pushe den rechten Unterbaum des aktuellen Knotens und seine linken Nachfahren
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TreeNode *r = node->right;
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while (r != NULL)
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{
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iterStack = push(iterStack, r);
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r = r->left;
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}
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return node->data;
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}
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}
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// Releases all memory resources (including data copies).
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/* Gibt alle Speicherressourcen frei (einschließlich Datenkopien). */
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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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// Basisfall: wenn Baum leer, nichts tun
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if (root == NULL)
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return;
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// Rekursiv linken und rechten Unterbaum löschen
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if (root->left != NULL)
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clearTree(root->left);
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if (root->right != NULL)
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clearTree(root->right);
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// Daten und Knoten selbst freigeben
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free(root->data);
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root->data = NULL;
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free(root);
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}
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}
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// Returns the number of entries in the tree given by root.
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/* Gibt die Anzahl der Einträge im Baum zurück. */
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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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// Basisfall: leerer Baum hat Größe 0
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}
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if (root == NULL)
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return 0;
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// Größe ist 1 (aktueller Knoten) plus Größen der Unterbäume
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return 1 + treeSize(root->left) + treeSize(root->right);
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}
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Binary file not shown.
Binary file not shown.
Binary file not shown.
@@ -1 +1,3 @@
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Nicolas;9984
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Test;4988
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player1;3999
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player1;3999
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Binary file not shown.
@@ -17,7 +17,7 @@ doble_initial:
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doble : main.o $(program_obj_files)
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doble : main.o $(program_obj_files)
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$(CC) $(FLAGS) $^ -o doble
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$(CC) $(FLAGS) $^ -o doble
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$(program_obj_filesobj_files): %.o: %.c
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$(program_obj_files): %.o: %.c
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$(CC) -c $(FLAGS) $^ -o $@
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$(CC) -c $(FLAGS) $^ -o $@
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# --------------------------
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# --------------------------
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+90
-12
@@ -5,22 +5,100 @@
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#include "numbers.h"
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#include "numbers.h"
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#include "bintree.h"
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#include "bintree.h"
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//TODO: getDuplicate und createNumbers implementieren
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// --- Hilfsfunktion: Vergleich von unsigned int ------------------
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/* * * Erzeugen eines Arrays mit der vom Nutzer eingegebenen Anzahl an Zufallszahlen.
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static int compareUInt(const void *a, const void *b)
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* Sicherstellen, dass beim Befüllen keine Duplikate entstehen.
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* Duplizieren eines zufälligen Eintrags im Array.
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* in `getDuplicate()`: Sortieren des Arrays und Erkennen der doppelten Zahl durch Vergleich benachbarter Elemente. */
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// Returns len random numbers between 1 and 2x len in random order which are all different, except for two entries.
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// Returns NULL on errors. Use your implementation of the binary search tree to check for possible duplicates while
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// creating random numbers.
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unsigned int *createNumbers(unsigned int len)
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{
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{
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unsigned int ua = *(const unsigned int *)a;
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unsigned int ub = *(const unsigned int *)b;
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if (ua < ub) return -1;
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if (ua > ub) return 1;
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return 0;
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}
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}
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// Returns only the only number in numbers which is present twice. Returns zero on errors.
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// Gibt ein Array mit len zufälligen Zahlen zwischen 1 und 2*len zurück, die alle unterschiedlich sind,
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// außer zwei Einträgen (ein Duplikat). Verwendet den Binärbaum, um Duplikate zu vermeiden.
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unsigned int *createNumbers(unsigned int len)
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{
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// Überprüfe ungültige Länge
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if (len < 2)
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return NULL;
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// Allokiere Speicher für das Array
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unsigned int *arr = malloc(sizeof(unsigned int) * len);
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if (!arr)
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return NULL;
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// Initialisiere Zufallszahlengenerator
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srand((unsigned int)time(NULL));
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TreeNode *root = NULL;
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unsigned int count = 0;
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// Generiere len-1 eindeutige Zahlen
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while (count < len - 1)
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{
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unsigned int val = (rand() % (2 * len)) + 1;
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int isDup = 0;
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// Füge in Baum ein und prüfe auf Duplikat
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root = addToTree(root, &val, sizeof(unsigned int), compareUInt, &isDup);
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if (!isDup)
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{
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arr[count++] = val;
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}
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}
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// Wähle einen zufälligen bestehenden Wert als Duplikat
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unsigned int duplicateIndex = rand() % (len - 1);
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arr[len - 1] = arr[duplicateIndex];
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// Baum freigeben
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clearTree(root);
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return arr;
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}
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// Gibt die einzige Zahl im Array zurück, die zweimal vorkommt.
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unsigned int getDuplicate(const unsigned int numbers[], unsigned int len)
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unsigned int getDuplicate(const unsigned int numbers[], unsigned int len)
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{
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{
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// Überprüfe ungültige Eingaben
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if (!numbers || len < 2)
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return 0;
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}
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// Kopiere Array
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unsigned int *copy = malloc(sizeof(unsigned int) * len);
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if (!copy)
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return 0;
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memcpy(copy, numbers, sizeof(unsigned int) * len);
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// Sortiere das Array (einfache Bubble-Sort)
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for (unsigned int i = 0; i < len - 1; i++)
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{
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for (unsigned int j = i + 1; j < len; j++)
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{
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if (copy[j] < copy[i])
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{
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unsigned int t = copy[i];
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copy[i] = copy[j];
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copy[j] = t;
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}
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}
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}
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// Finde angrenzendes Duplikat
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unsigned int duplicate = 0;
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for (unsigned int i = 0; i < len - 1; i++)
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{
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if (copy[i] == copy[i + 1])
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{
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duplicate = copy[i];
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break;
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}
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}
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// Speicher freigeben
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free(copy);
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return duplicate;
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}
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Binary file not shown.
+21
-9
@@ -1,33 +1,45 @@
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#include <stdlib.h>
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#include <stdlib.h>
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#include "stack.h"
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#include "stack.h"
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//TODO: grundlegende Stackfunktionen implementieren:
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/* * `push`: legt ein Element oben auf den Stack,
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* `pop`: entfernt das oberste Element,
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* `top`: liefert das oberste Element zurück,
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* `clearStack`: gibt den gesamten Speicher frei. */
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// Pushes data as pointer onto the stack.
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// Pushes data as pointer onto the stack.
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StackNode *push(StackNode *stack, void *data)
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StackNode *push(StackNode *stack, void *data)
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{
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{
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StackNode *newNode = (StackNode *)malloc(sizeof(StackNode));
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if (newNode == NULL)
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return stack; // allocation failed: return unchanged stack
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newNode->data = data;
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newNode->next = stack;
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return newNode;
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}
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}
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// Deletes the top element of the stack (latest added element) and releases its memory. (Pointer to data has to be
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// Deletes the top element of the stack (latest added element) and releases its memory. (Pointer to data has to be
|
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// freed by caller.)
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// freed by caller.)
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StackNode *pop(StackNode *stack)
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StackNode *pop(StackNode *stack)
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{
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{
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if (stack == NULL)
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return NULL;
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StackNode *next = stack->next;
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free(stack);
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return next;
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}
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}
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// Returns the data of the top element.
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// Returns the data of the top element.
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void *top(StackNode *stack)
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void *top(StackNode *stack)
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{
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{
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if (stack == NULL)
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return NULL;
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return stack->data;
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}
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}
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|
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// Clears stack and releases all memory.
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// Clears stack and releases all memory.
|
||||||
void clearStack(StackNode *stack)
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void clearStack(StackNode *stack)
|
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{
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{
|
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|
while (stack != NULL)
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}
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{
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StackNode *next = stack->next;
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free(stack);
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stack = next;
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}
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}
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@@ -8,6 +8,12 @@ The latest element is taken from the stack. */
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#include <stdlib.h>
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#include <stdlib.h>
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|
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//TODO: passenden Datentyp als struct anlegen
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//TODO: passenden Datentyp als struct anlegen
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struct StackNode {
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void *data;
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struct StackNode *next;
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};
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|
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typedef struct StackNode StackNode;
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// Pushes data as pointer onto the stack.
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// Pushes data as pointer onto the stack.
|
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StackNode *push(StackNode *stack, void *data);
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StackNode *push(StackNode *stack, void *data);
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@@ -22,4 +28,4 @@ void *top(StackNode *stack);
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// Clears stack and releases all memory.
|
// Clears stack and releases all memory.
|
||||||
void clearStack(StackNode *stack);
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void clearStack(StackNode *stack);
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||||||
|
|
||||||
#endif
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#endif
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Binary file not shown.
@@ -0,0 +1,60 @@
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#include <stdio.h>
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||||||
|
#include <stdlib.h>
|
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#include "numbers.h"
|
||||||
|
|
||||||
|
// Einfache Funktion, um zu zählen, wie oft eine Zahl im Array vorkommt
|
||||||
|
int countOccurrences(const unsigned int *arr, unsigned int len, unsigned int value) {
|
||||||
|
int count = 0;
|
||||||
|
for (unsigned int i = 0; i < len; i++) {
|
||||||
|
if (arr[i] == value) count++;
|
||||||
|
}
|
||||||
|
return count;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Testfunktion für createNumbers und getDuplicate
|
||||||
|
void testNumbers(unsigned int len) {
|
||||||
|
printf("Teste mit Laenge %u:\n", len);
|
||||||
|
|
||||||
|
// Erstelle Zahlenarray
|
||||||
|
unsigned int *numbers = createNumbers(len);
|
||||||
|
if (numbers == NULL) {
|
||||||
|
printf("Fehler: Konnte Array nicht erstellen.\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Gib Array aus
|
||||||
|
printf("Generierte Zahlen: ");
|
||||||
|
for (unsigned int i = 0; i < len; i++) {
|
||||||
|
printf("%u ", numbers[i]);
|
||||||
|
}
|
||||||
|
printf("\n");
|
||||||
|
|
||||||
|
// Finde Duplikat
|
||||||
|
unsigned int duplicate = getDuplicate(numbers, len);
|
||||||
|
printf("Gefundenes Duplikat: %u\n", duplicate);
|
||||||
|
|
||||||
|
// Überprüfe, ob es genau zweimal vorkommt
|
||||||
|
int occ = countOccurrences(numbers, len, duplicate);
|
||||||
|
if (occ == 2) {
|
||||||
|
printf("Korrekte Überprüfung: %u kommt genau zweimal vor.\n", duplicate);
|
||||||
|
} else {
|
||||||
|
printf("Fehler: %u kommt %d mal vor (sollte 2 sein).\n", duplicate, occ);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Speicher freigeben
|
||||||
|
free(numbers);
|
||||||
|
printf("\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
int main() {
|
||||||
|
printf("Testprogramm für numbers.c\n");
|
||||||
|
printf("=========================\n\n");
|
||||||
|
|
||||||
|
// Teste mit verschiedenen Längen
|
||||||
|
testNumbers(5);
|
||||||
|
testNumbers(10);
|
||||||
|
testNumbers(20);
|
||||||
|
|
||||||
|
printf("Tests abgeschlossen.\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
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Reference in New Issue
Block a user