Part 2 is pretty slow, since we just reuse our fast solution for part 1.
This means we have to check 4000000 which could be reduced a bit by
using a loop. It is tolerably slow, so whatever. (Overall this problem
would have been more fun if the space to check was smaller.)
Change-Id: I1203330fe0364894cfe0318376e583868937b5bd
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7603
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
c3be4f6f59
