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README.md

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-# Python, Algorithms, and Data Structures (Book)
+## 👾🐍 master python with algorithms (my book 🖤)
 
 <br>
 
-#### This repository contains my book on Algorithms and Data Structure in Python, published by [Hanbit Media](https://www.hanbit.co.kr/store/books/look.php?p_code=B8465804191) in 2014.
-
-#### 👉 [4.6/5 stars and 33 reviews for a book written in school, not bad :)](https://www.hanbit.co.kr/store/books/look.php?p_code=B8465804191)
-
-#### 👉 [here is a pic when this repo used to have 600+ stars and 300 forks (before 💩 happened 😞)](600_stars.png)
-
-#### 👉 [this book as a reference for a CMU computer science class](https://www.andrew.cmu.edu/user/ramesh/teaching/course/48784.pdf)
-
-<br>
-
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-
 
 <p align="center">
-<img src="https://user-images.githubusercontent.com/1130416/156927662-1cc6d09f-1124-4a87-8c40-10159b24d307.jpeg" width="50%" align="center" style="padding:1px;border:1px solid black;">
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-<img src="https://user-images.githubusercontent.com/1130416/234332753-28e8e671-1327-4069-b2cb-f9dbe0c77623.png" width="50%" align="center" style="padding:1px;border:1px solid black;">
-</p>
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-<p align="center">
-  <img src="https://user-images.githubusercontent.com/1130416/156927665-8f574012-bb9d-4698-bef2-bb4f5173d63c.png" width=90%" align="center" style="padding:1px;border:1px solid black;">
-</p>
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-<p align="center">
-  <img src="https://user-images.githubusercontent.com/1130416/156927666-04e64766-8d8b-4973-a2b1-6e0c48dc6cc1.jpeg" width=90%" align="center" style="padding:1px;border:1px solid black;">
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-<p align="center">
-  <img src="https://user-images.githubusercontent.com/1130416/156927664-25102b50-301c-4d18-aa15-b399b9716ff1.png" width=90%" align="center" style="padding:1px;border:1px solid black;">
+<img src="https://user-images.githubusercontent.com/1130416/156927662-1cc6d09f-1124-4a87-8c40-10159b24d307.jpeg" width="30%" align="center" style="padding:1px;border:1px solid black;">
 </p>
 
 <br>
 
-----
+### in this repo
 
 <br>
 
-### Summary
+*  **[📖 my book on algorithms and data structure in python (2014)](book)**: 
+    - **one of the first ever publication to solve classic computer science algorithm and data structure problems in python.**
+    - **[it was published by hanbit media in 2014](https://www.hanbit.co.kr/store/books/look.php?p_code=B8465804191)**.
+    - **[as of today, has 4.6/5 stars and 33 reviews](https://www.hanbit.co.kr/store/books/look.php?p_code=B8465804191)**.
+    - **[this book as a reference for a CMU computer science class](https://www.andrew.cmu.edu/user/ramesh/teaching/course/48784.pdf)**.
+    - **[here is a pic when this repo used to have 600+ stars and 300 forks (before 💩 happened 😞)](book/600_stars.png)**.
 
 
-* This book as one of the first publications to solve the classic computer science algorithm and data structure problems in Python.
-
-* [Here is the PDF for the free e-book](https://github.com/bt3gl/Book_on_Python_Algorithms_and_Data_Structure/blob/master/book/ebook_pdf/book_second_edition.pdf).
-
-* [Here is the source code, including abstract structures, bitwise operations, builtin Python data structures, searching and sorting, trees, and real interview problems](https://github.com/bt3gl/Book_on_Python_Algorithms_and_Data_Structure/tree/master/book/ebook_src).
-
-<br>
-
----
-
 <br>
 
 
-### [The Zen of Python](https://www.python.org/dev/peps/pep-0020/)
+    
+    
 
-```
-Beautiful is better than ugly.
-Explicit is better than implicit.
-Simple is better than complex.
-Complex is better than complicated.
-Flat is better than nested.
-Sparse is better than dense.
-Readability counts.
-Special cases aren't special enough to break the rules.
-Although practicality beats purity.
-Errors should never pass silently.
-Unless explicitly silenced.
-In the face of ambiguity, refuse the temptation to guess.
-There should be one-- and preferably only one --obvious way to do it.
-Although that way may not be obvious at first unless you're Dutch.
-Now is better than never.
-Although never is often better than *right* now.
-If the implementation is hard to explain, it's a bad idea.
-If the implementation is easy to explain, it may be a good idea.
-Namespaces are one honking great idea -- let's do more of those!
-```
+
+<p align="center">
+  <img src="https://user-images.githubusercontent.com/1130416/156927666-04e64766-8d8b-4973-a2b1-6e0c48dc6cc1.jpeg" width=60%" align="center" style="padding:1px;border:1px solid black;">
+
+<br>
+<br>
+<br>
+
+
+* **📖 algorithms and data structures revisited (2023)**:
+    * 𝟘𝟘𝟙𝟘. **[arrays, vectors, strings](arrays_and_strings)**
+    * 𝟘𝟘𝟙𝟙. **[linked lists](linked_lists)**
+    * 𝟘𝟙𝟘𝟘. **[stacks and queues](stacks_and_queues)**
+    * 𝟘𝟙𝟘𝟙. **[bit manipulation](bit_manipulation)**
+    * 𝟘𝟙𝟙𝟘. **[math and logic](math_and_logic)**
+    * 𝟘𝟙𝟙𝟙. **[object-oriented design](object_oriented_design)**
+    * 𝟙𝟘𝟘𝟘. **[recursion and dynamic programming](recursion_and_dp)**
+    * 𝟙𝟘𝟘𝟙. **[sorting and searching](sorting_and_searching)**
+    * 𝟙𝟘𝟙𝟘. **[concurrency](concurrency)**
+    * 𝟙𝟘𝟙𝟙. **[trees and graphs](trees_and_graphs/)**
+
+
+  

book/README.md

@@ -1,15 +0,0 @@
-## Python, Algorithms and Data Structures (2014)
-
-[Download PDF (first edition, published by Hanbit Media)](https://github.com/bt3gl/Python-and-Algorithms-and-Data-Structures/blob/master/First_edition_2014/ebook_pdf/book_second_edition.pdf).
-
-
-## To run the snippet:
-
-Install dependencies in a [virtual environment](https://coderwall.com/p/8-aeka):
-
-```
-virtualenv venv
-source venv/bin/activate
-pip install -r requirements.txt
-```
-

book/requirements.txt

@@ -1,13 +0,0 @@
-Flask==2.2.5
-SQLAlchemy==0.9.7
-bpython==0.13.1
-coverage==3.7.1
-curtsies==0.0.34
-graphviz==0.4.2
-ipython==8.10.0
-matplotlib==1.3.1
-nose==1.3.0
-numpy==1.22.0
-scapy==2.4.1
-scikit-learn==0.14.1
-scipy==1.10.0