Yan Cui
I help clients go faster for less using serverless technologies.
This article is brought to you by
The real-time data platform that empowers developers to build innovative products faster and more reliably than ever before.
The problem description is here, and click here to see all my other Euler solutions in F#.
After reading the question, a quick search on how to test if a point is in a triangle turned up this useful SO answer. Translating the algorithm to F# is pretty trivial:
I saved the triangle.txt file alongside the script file, so to make it easier to load and parse. The content of the file looks like this:
-340,495,-153,-910,835,-947
-175,41,-421,-714,574,-645
-547,712,-352,579,951,-786
419,-864,-83,650,-399,171
…
so for each line, we have the 3 (x,y) coordinates separated by comma.
F# 4 also added a chunkBySize combinator to the Array module, which comes in handy here:
This solution runs for 20ms on my machine.
The source code for this solution is here.
Whenever you’re ready, here are 4 ways I can help you:
- Production-Ready Serverless: Join 20+ AWS Heroes & Community Builders and 1000+ other students in levelling up your serverless game. This is your one-stop shop for quickly levelling up your serverless skills.
- Do you want to know how to test serverless architectures with a fast dev & test loop? Check out my latest course, Testing Serverless Architectures and learn the smart way to test serverless.
- I help clients launch product ideas, improve their development processes and upskill their teams. If you’d like to work together, then let’s get in touch.
- Join my community on Discord, ask questions, and join the discussion on all things AWS and Serverless.