typedef struct Node { char* key; char* value; struct Node* next; } Node;
// Print the hash table void printHashTable(HashTable* hashTable) { for (int i = 0; i < HASH_TABLE_SIZE; i++) { Node* current = hashTable->buckets[i]; printf("Bucket %d: ", i); while (current != NULL) { printf("%s -> %s, ", current->key, current->value); current = current->next; } printf("\n"); } } c program to implement dictionary using hashing algorithms
// Delete a key-value pair from the hash table void delete(HashTable* hashTable, char* key) { int index = hash(key); Node* current = hashTable->buckets[index]; if (current == NULL) return; if (strcmp(current->key, key) == 0) { hashTable->buckets[index] = current->next; free(current->key); free(current->value); free(current); } else { Node* previous = current; current = current->next; while (current != NULL) { if (strcmp(current->key, key) == 0) { previous->next = current->next; free(current->key); free(current->value); free(current); return; } previous = current; current = current->next; } } } typedef struct Node { char* key; char* value;
A dictionary, also known as a hash table or a map, is a fundamental data structure in computer science that stores a collection of key-value pairs. It allows for efficient retrieval of values by their associated keys. Hashing algorithms are widely used to implement dictionaries, as they provide fast lookup, insertion, and deletion operations. typedef struct Node { char* key
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typedef struct Node { char* key; char* value; struct Node* next; } Node;
// Print the hash table void printHashTable(HashTable* hashTable) { for (int i = 0; i < HASH_TABLE_SIZE; i++) { Node* current = hashTable->buckets[i]; printf("Bucket %d: ", i); while (current != NULL) { printf("%s -> %s, ", current->key, current->value); current = current->next; } printf("\n"); } }
// Delete a key-value pair from the hash table void delete(HashTable* hashTable, char* key) { int index = hash(key); Node* current = hashTable->buckets[index]; if (current == NULL) return; if (strcmp(current->key, key) == 0) { hashTable->buckets[index] = current->next; free(current->key); free(current->value); free(current); } else { Node* previous = current; current = current->next; while (current != NULL) { if (strcmp(current->key, key) == 0) { previous->next = current->next; free(current->key); free(current->value); free(current); return; } previous = current; current = current->next; } } }
A dictionary, also known as a hash table or a map, is a fundamental data structure in computer science that stores a collection of key-value pairs. It allows for efficient retrieval of values by their associated keys. Hashing algorithms are widely used to implement dictionaries, as they provide fast lookup, insertion, and deletion operations.
