100 Day Of Code Challenge 🚀

Daily Code Push Challenge — ship code every day.

📋 Challenge Rules

• Push code every day
• Learn something new
• Keep code readable
• Add a short description

📚 Completed Days

Day	Topic	Language	Status
1	GUI Calculator	HTML, CSS, JS	✅
2	Singly Linked List	JavaScript	✅
3	Soft Keywords	Python	✅
4	Walrus Operator	Python	✅
5	Doubly Linked List	JavaScript	✅
6	Monkey Patching	Python	✅
7	File Handling	Python	✅
8	File-Based CRUD App	Python	✅
9	Stack (Array-based)	JavaScript	✅
10	HTML Basics (Forms, Lists, Tables)	HTML	✅
11	Queue (Array-based)	JavaScript	✅
12	CSS in ONE SHOT (Box Model, Flexbox)	CSS	✅
13	Deque (Double-Ended Queue)	JavaScript	✅
14	Markdown in ONE Shot	Markdown	✅
15	Markdown to HTML Converter	Python	✅
16	Min-Heap Data Structure	JavaScript	✅
17	Understood Recursion	Python	✅
18	Priority Queue	JavaScript	✅
19	Set Data Structure (Map-backed)	JavaScript	✅
20	10 Best Project Ideas for Beginners	Ideas / Text	✅
21	HashTable with Chaining	JavaScript	✅
22	Project: Stack Visualizer	HTML, CSS, JS	✅
23	XML One Shot (XML + XSD)	XML	✅
24	Handle XML through Python	Python + XML	✅
25	Python Iterators	Python	✅
26	Understanding Generators in Python	Python	✅
27	Tailwind CSS One Shot	HTML, Tailwind CSS	✅
28	Modern Login Form (Tailwind)	HTML, Tailwind CSS	✅
29	Run C Code from Python Like a Pro!	Python + C	✅
30	Call C Code from Python!	Python + C	✅

📊 Progress

Progress: [██████████████████████████████░] 30%
Days completed: 30 / 100
Streak: 30 days 🔥

🛠️ Technologies Used

• JavaScript (Linked Lists, Stack, Queue, Deque, Heap, Priority Queue, Set, HashTable, Visualization)
• Python (Operators, File I/O, Monkey Patching, CRUD, Markdown, XML Parsing, Iterators, Generators, ctypes)
• C (Shared libraries, FFI integration with Python)
• HTML (Forms, Lists, Tables, Structure, Interactive UI)
• CSS (Box Model, Flexbox, Animations, Transitions)
• Tailwind CSS (Utility-first framework, Responsive design, Custom components)
• Markdown (Documentation, Notes)
• XML (Structured data, Elements/Attributes, XSD validation, Python parsing)

📘 Today (Day 30)

• Topic: Call C Code from Python!
• Files: A1.py, c.c
• Key concepts learned:
  • Advanced ctypes usage for C function calls
  • Passing arguments: primitives, pointers, structures
  • Returning complex data types from C to Python
  • Error handling and exception mapping
  • Creating wrapper functions for cleaner Python API
  • Performance profiling (Python vs C benchmark)
  • Memory management across language boundaries
  • Debugging ctypes integration with print/logging

🔄 Daily Push Command

cd "d:\100 days Of Code"
git pull
git add README.md "Day-30 Call C Code from Python!/A1.py" "Day-30 Call C Code from Python!/c.c"
git commit -m "Day 30: Call C Code from Python! — advanced ctypes integration"
git push

🎯 Goal

Complete 100 days of consistent coding and build a solid learning trail.

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Started: November 2024
Repository: https://github.com/vikaschuahan/100-Day-Of-Code