@Academisfit @hendrycks@OpenAI i looked at the easiest problem (a1) and you graded it wrong
it did well but you should ask a contest math person (esp one who understands putnam grading) to grade it for a proper estimate
so the putnam is even harder to ace than you realized! :) but i agree with you otherwise
13/ Still cheap: Shanghai salaries 1/2 of UK but money goes 2x further. $3 = taxi ride or decent meal. 4BR apartment in Chengdu for $100/night. 300km/h trains with lie-flat seats for $30.