Implementation of Data Structures and Algorithms with Python

**Is your feature request related to a problem? Please describe.**
Data Structures -
Arrays
Graphs
Hashtables (dictionary)
Linked Lists
Stack and Queues

Algorithms -
Dynamic Programming
Recursion
Sorting
Traversals
BFS
DFS

**Describe the solution you'd like**
I have implemented all of them in python

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.

### Programming language

- [ ] C
- [ ] C++
- [ ] Java
- [x] Python

The issue lists Python implementations for arrays, graphs, hash tables, linked lists, stacks, queues, dynamic programming, recursion, sorting, traversals, BFS, and DFS, but names no files, entry points, or tests. Start by reviewing the repository structure and existing Python contributions. Done is not defined beyond implementing the listed topics.

Written by the indexing model from the issue text.