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It is kinda fun to debug exactly how people get to specific wrong answers. Besides 19 and 26, other wrong answers include 67 and the very interesting 80.
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This is excellent. I got both wrong answers (19, 26) before getting the right one. Lovely abstraction leaks.
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People missing the order of operations are the most interesting to me. I think that’s liberal arts left-to-rightreaders. The order is second nature to me. Once I saw the X, I couldn’t make a certain kind of mistake
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80 is just getting the order of operation wrong? I spent more time thinking how to get 19 and 26, than getting 67 than 38.