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A comment on Show HN: Coding Interview Practice. Parent comment

Re:Show HN: Coding Interview Practice by jimmaswell on Wednesday March 26, 2014 @09:39PM (#7478014)
why would I need a hint that I can't time-travel? why would I need to be familiar with trading to know I can't sell something I bought in the future?
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Re:Show HN: Coding Interview Practice by stygiansonic on Wednesday March 26, 2014 @09:42PM (#7478026)
Short-selling does not involve time-travel.
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Re:Show HN: Coding Interview Practice by jimmaswell on Wednesday March 26, 2014 @09:57PM (#7478078)
It said in the text of the problem that you have to purchase the stock, not pretend to purchase the stock.
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