Back in February 2020, I wrote the Canadian Computing Competition (CCC) and received a perfect score. My programming teacher suggested that his students write a blog on the contest. A month later, ...

Introduction TLE 2018-19 P1 - Hello, World! is from an April Fools’ Day contest; it’s not a serious competitive programming problem. If you take a look closely at the sample input, you might figure...

Introduction When you implement a recursive segment tree, it’s better to store segment tree nodes in an array or vector than it is to create a new object for every node one by one. This reduces th...

In the ICPC (International Collegiate Programming Contest), each team is allowed to bring up to 25 pages of printed material. There are many great codebooks out there such as KACTL, but I prefer to...

My Experience Note: I am writing this blog in June 2021, after the 2021 (not 2020) CCO. 2020 was my first time at the Canadian Computing Olympiad (CCO). The top 25 or so high school students fro...

My Online Profiles Rating badges are available here. Pull requests to add more sites are welcomed. My Contest History (only major contest are listed): 2022 East Central North America R...

This year’s Canadian Computing Competition was held on February 12, 2020. Here I will dissect the results of the Senior Division contest. Contest Analysis CCC 2019 CCC 2020 ...