C Program To Implement Dictionary Using Hashing — Algorithms

prev = curr; curr = curr->next;

free(table->buckets); free(table);

=== Dictionary Implementation using Hashing in C ===

Make sure to provide full code, well-commented. Use markdown formatting. Write in professional tone, educational. Length: several thousand words? Provide detailed commentary. c program to implement dictionary using hashing algorithms

The complete implementation uses about 150 lines of code (excluding comments), achieves O(1) average operations, and handles dynamic string keys with integer values. Adapt it to your needs, and you'll have a production-ready dictionary in pure C.

Length: target ~1500-2000 words. Implementing a Dictionary in C Using Hashing Algorithms

// --- Main Driver --- int main() Dictionary *myDict = create_dictionary(); Length: several thousand words

do printf("\n========== DICTIONARY MENU ==========\n"); printf("1. Insert/Update key-value pair\n"); printf("2. Search for a key\n"); printf("3. Delete a key\n"); printf("4. Display all entries\n"); printf("5. Show number of entries\n"); printf("6. Exit\n"); printf("Enter your choice: "); scanf("%d", &choice); getchar(); /* consume newline */

The goal is to perform each of these operations in average time complexity.

// Lookup int *val = get(myDict, "banana"); if (val) printf("Get 'banana': %d\n", *val); Adapt it to your needs, and you'll have

// Create a new hash table with given number of buckets HashTable* create_table(int size) HashTable table = malloc(sizeof(HashTable)); if (!table) return NULL; table->size = size; table->buckets = calloc(size, sizeof(Entry )); if (!table->buckets) free(table); return NULL;

Run the dictionary with 100,000 insertions and measure average time per operation using clock() or gettimeofday() .