it all fit in int64 tho, so could be worse
I always have this thought. I’m doing it in Rust, so I check if there are negative numbers: if not, use
usize. But I’m always terrified there will be an overflow somewhere.If I were using Kotlin or Java, I might always use
BigIntegerjust out of fear.That’s a very interesting thought! I was thinking of writing my own Rust data type that would automatically upgrade to big integer, similarly to the int type in Python.
I am doing AOC in Kotlin. Longs are fine. I haven’t encountered a puzzle that required ULong or BigInteger.
Considered sticking all the values in a set. Considered input. Coalesced the ranges instead. Ran both parts in 0.1 ms.
I’m actually looking forward a bit to 12 days this year. Previous AOC took a bit long to ramp up. Am expecting recursion imminently, dynamic programming next week, and complete head scratching bastardry to round out the week.



