📊 Python Data Structures & Collections (Lists, Dictionaries & Tuples)

A comprehensive suite of foundational and enterprise-level in-memory data structures demonstrating Lists (dynamic arrays), Dictionaries (hash maps), and Tuples (immutable sequences) built by Shaurya Bhatia.

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📂 Modules & Implementations

DATA_STRUCTURES_PROJECTS/
├── list_operations_menu.py       # Interactive CLI menu for list manipulation (append, insert, pop, clear)
├── student_records_list.py       # Student roster management using nested list structures
├── student_records_dict.py       # Student database using dictionary key mapping to attribute lists
├── dictionary_foundations.py     # In-depth dictionary mechanics: keys(), values(), items(), safe lookups
├── tuple_foundations.py          # Immutable sequence architecture, built-in stats, packing & unpacking
├── bank_dict_system.py           # Core banking system using hash map lookups and P2P transfers
├── student_dict_system.py        # Academic CRUD record manager indexed by enrollment number
├── contact_book_dict.py          # Phone and address book with custom masked alphanumeric IDs
├── generators.py                 # Randomized unique account number and contact ID generator utilities
└── Classroom Foundations:
    ├── dictonary intro(COM).py       # Classroom notes & demonstrations for dictionaries
    ├── tupl intro(COM).py            # Classroom notes & demonstrations for tuples
    ├── dictonary(bank main menu)(COM).py
    ├── dictonary (student main menu)(COM).py
    ├── dictonary (contact list ).py
    └── List nested loop main menu(COM).py

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🔬 Algorithmic & Structural Highlights

Data Structure	Module	Time Complexity (Lookup / Access)	Key Operations Demonstrated
List (Dynamic Array)	list_operations_menu.py	$O(1)$ by index / $O(N)$ by value	append(), insert(pos, val), pop(0), clear(), index searching
Nested Lists	student_records_list.py	$O(N)$ traversal	2D matrix-like student records [eno, name, course, fee], fee accumulation
Dictionary (Hash Map)	dictionary_foundations.py	$O(1)$ average	Key uniqueness, .keys(), .values(), .items(), .get() safe fallback
Dictionary + List	student_records_dict.py	$O(1)$ by enrollment no	Primary key mapping to attribute lists, collision handling
Tuple (Immutable)	tuple_foundations.py	$O(1)$ index access	Single-element commas (11,), max(), min(), sum(), tuple packing & unpacking
Enterprise Hash Map	bank_dict_system.py	$O(1)$ average	Account generation, balance deposits, overdraft validations, fund transfers

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🚀 How to Run

Navigate to this directory and run any module directly:

# Run the Interactive List Operations Menu
python list_operations_menu.py

# Run the Dictionary Foundations Demo
python dictionary_foundations.py

# Run the Tuple Foundations Demo
python tuple_foundations.py

# Run the Student Nested Lists Manager
python student_records_list.py

# Run the Student Dictionary Manager
python student_records_dict.py

# Run the In-Memory Banking System
python bank_dict_system.py

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🧪 Verification

All modules have been verified with 0 syntax or runtime errors using Python's bytecode compiler:

python -m compileall .

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Author: [Shaurya Bhatia](https://github.com/shauryabhatia21)
B.Tech Computer Science & Engineering (CSE Core) @ Bennett University