C Program To Implement Dictionary Using Hashing Algorithms [better]

To implement a dictionary via hashing, you need to understand three core components:

If used in a multi‑threaded environment, add mutex locks around operations that modify the table.

int main() HashTable* hashTable = createHashTable(); insert(hashTable, "apple", "fruit"); insert(hashTable, "banana", "fruit"); insert(hashTable, "carrot", "vegetable"); printHashTable(hashTable); char* value = search(hashTable, "banana"); printf("Value for key 'banana': %s\n", value); delete(hashTable, "apple"); printHashTable(hashTable); return 0; c program to implement dictionary using hashing algorithms

Returns 1 if key was found and deleted, 0 otherwise

--- Dictionary contents (total 2 entries) --- Index 3: ('banana', 12) -> NULL Index 92: ('apple', 5) -> NULL To implement a dictionary via hashing, you need

new_node->value = value; new_node->next = NULL; return new_node;

#define TABLE_SIZE 10007 // A prime number The hash function converts a string key into an index

typedef struct Node char* key; char* value; struct Node* next; Node;

strdup is POSIX but not part of standard C. On systems lacking it, you can implement your own: char *dup = malloc(strlen(key)+1); strcpy(dup, key); .

The hash function converts a string key into an index. A good hash function:

current->next = node;