My name is Carl Joshua Quines, but everyone calls me CJ. I’m eighteen, living in Valenzuela, Philippines. I graduated from the Valenzuela City School of Mathematics and Science last April.

Here is my resume, minus phone number and address.

Me, standing in foreground, delivering a speech.

Delivering an address in the moving-up ceremonies in tenth grade. Image: Valenzuela City PIO.


My partner and I won second prize in math at ISEF 2017, the world’s largest science fair. I tied for top contributor at CrowdMath 2017 and co-authored a paper. Both projects were on graph theory, which I’m really interested in.

I won bronze in the Asia-Pacific Mathematical Olympiad 2017 and 2018. I’ve also qualified for our country’s selection camp for the International Mathematical Olympiad three years in a row. I write handouts and train students for competition math.

Me delivering a lecture.

A lecture on set theory during PRIME 2017. Image: Marilyn Soriano.


I placed second in the National Olympiad in Informatics 2018, the country’s most prestigious high school programming contest. I write miscellaneous programs in C++, Python and VB, and put this website together from scratch.

You can find me on Github as cjquines.

Source code in C++.

Source code to one of my solutions in the NOI.PH 2018.


Have a question, found a typo, or just want to talk? Drop me an email at cj@cjquines.com. You can also find me on Facebook.