He gave up after 3 hours? My officemate and I worked on a problem for 3 days before solving a problem, only to realize after submitting it that we had both misread the problem! We turned our solution into a paper: https://www.cs.ubc.ca/~nickhar/Publications/FamilyTrees/SODA-FamilyTrees.pdf …
Replying to @kczat @Jesse_Livermore
My neighbor is a mathematician. In his undergrad, he also used to spend sometimes upwards of four days on a single problem. He frequently expresses disappointment that undergrads are no longer faced with such rigorous problems.
11:13 AM - 18 Sep 2018
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