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Blog

Don't take the post dates on this page as a measure of how often I blog. I update my Books page and Euler page quite often.

2020 Books

Posted: 6 August 2020

Algorithmic Trading - Ernest Chan Alibaba - The House That Jack Ma Built - Duncan Clark Educated - Tara Westover Prisoners of Geography - Tim Marshall Reminiscences of a Stock Operator - Edwin Lefevre Algorithmic Trading - Ernest Chan 15th October 2020. Read it to find out! Alibaba - The...

First Post of 2020

Posted: 30 March 2020

This post is 3 months late. It has been on my mind since January but I never actually got down to writing it. No excuses though! As usual, the First Post of 2020 would cover two things. First, 2019 Books. Second, First Post of 2019. The absolute number of books...

HackerRank: Frequency Queries

Posted: 18 February 2019

Seemed easy at the start as I misread query 3. I read it as if there exists at least one of this number in the data structure. I tried coding this immediately without writing it on paper, and was stuck pretty quickly or found out I was heading down in...

HackerRank: Is this BST?

Posted: 16 February 2019

I first implemented this using a stack - it wasn’t too hard to get everything up to speed. It was only until I tried submitting it, that HackerRank did not allow me to use additional data structures (or perhaps I could but just didn’t know how). The only other way...

HackerRank: Encryption

Posted: 13 February 2019

A simple problem. Not sure why I’m even writing about it but here goes. It was simply executing it and knowing how to use vector and manipulating the grid well. I first coded on paper, and then wrote the code directly into the HackerRank screen. Made a small mistake in...