R. Stephen L. Ruiz

Let us grow together.


This site will host my teaching and coding journey, the resources for the courses I handled, and the projects I am currently working on.

After a year, found time to update this site. Hope I could sustain this work.


Engineering Educator

  • Mentor
  • Developer (Website, Apps ...)

Journal

GfG Problem of The Day

Day 1: Solved "Minimum Add to Make Parentheses Valid". GfG September 19, 2025

September 19, 2025

GfG 30 Day Challenge

Day 18: Solved "Minimum number of deletions and insertions". GfG September 3, 2024

September 3, 2024

GfG 30 Day Challenge

Day 2: Solved remove duplicates. GfG July 27, 2024

July 28, 2024

GfG 30 Day Challenge

Day 1: Solved form a palindrome. GfG July 27, 2024

July 27, 2024

IBM Cloud Object Storage

Posted a static website on IBM cloud S3 following dev.to/ibmdeveloper/... Thank you James @thomasj!

July 24, 2024

Don Pin Group of Companies

Thank you Don Pin Group of Companies for your successful medical mission yesterday, July 20, at Bukal, Magdalena, Laguna in Our Lady of Victories Chapel.

Thank you doctors, dentists, nurses, and all staff. May your charitable hearts always overflow and Heaven grant all of you, abundant blessings.

Marami pong salamat Dra. Jeannet Pin.

July 21, 2024

Haskell

Started learning the lazy, functional language Haskell (www.haskell.org). It needs a different mindset.

July 15, 2024

Resources

On going work :)

  • Data Structures and Algorithms in Java & Python
  • Object Oriented Programming in Java & Python
  • Programming Logic and Design in C & Python
  • Computer Fundamentals and Programming in C
  • Digital Signal Processing in Matlab & Python
  • Numerical Methods in Python
  • Digital Logic and Switching Theory
  • Electrical Circuits
  • Electronic Devices and Circuits
  • Feedback and Control Systems
  • Microprocessors & Microcontrollers

About

Engineering Educator

MSECE - De La Salle University
BSECE - Don Bosco Technical College

  • Electronics
  • Iot
  • ML/AI
  • Python
  • C/C++
  • Java
  • HTML, CSS, JavaScript, Bootstrap
  • Matlab