Can you use calculators in a USACO Contest?

#1

Can you use the following (and if so, which ones)?

  • Desmos/Geogebra
  • WolframAlpha
  • Normal handheld scientific calculators (e.g. cheap CASIOs)
  • Normal handheld graphing calculators (e.g. somewhat expensive TIs)
#2

I don’t think any of these are allowed, but you could use Python as a calculator: