HashTable Data Serialization

This project demonstrates storing key-value pairs in a hash map data structure with data serialization.

Features

Double Hashtable for Resizing:
- Uses two hashtables (ht1 & ht2).
- When the load factor exceeds the maximum, resizing begins, and nodes are moved from ht2 to ht1.
Server Commands:
- The server listens for commands like get, set, del, and keys, each corresponding to operations on the underlying key-value store.
Data Serialization:
- Generalized encoding to handle different types of data.
- Supports getting a list of strings as a response.

server-4.cpp: Contains the server-side implementation, including handling connections, processing requests, and managing the hash table.
client-4.cpp: Contains the client-side implementation for sending requests to the server and handling responses.
hashtable.cpp: Contains the implementation of the hash table, including insertion, lookup, and resizing logic.
hashtable.h: Header file for the hash table implementation.

Compile the Server:

g++ -o server server-4.cpp hashtable.cpp

Compile the Client:
```
g++ -o client client-4.cpp
```
Run the Server:
```
./server
```
Run the Client:
```
./client <command> [arguments]
```
Example commands:
- ./client set key value
- ./client get key
- ./client del key
- ./client keys