[lifthrasiir]

> double parsing

In case you haven't noticed yet, the input format guarantees exactly one fractional digit, so you can read a single signed integer followed by `.` and one digit instead.

[rockwotj]

Yeah I missed this originally, and stuff could be faster with this assumption without a full double parser. The fastest java solution dies some near branchless decoding for these

[fragmede]

could you just add the character values eg 49 for ascii 1, and then subtract off the offset once at the end instead of doing atoi on each line?

edit: doh that works for min and max but the average overflows.

[gpvos]

Yes. I'm not sure it'll help, but def worth a try.