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Happy Number

Determines whether a number is happy - a small cycle-detection problem.

Backend2025

Python

Role: Sole engineer
Year: 2025
Type: Backend

Python

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Card Validator

The Luhn algorithm, implemented properly

Nishthup

40.6782 N / 73.9442 W

Brooklyn, New York

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© 2026 MD Sadnan Hossain Nishthup

All projects nishchup489@gmail.com

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