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  • First and last element as pivot in QuickSort?

    What is the runtime if first index is pivot in Quicksort? and what about the last index? Is it O(N)?

    Software1 day ago
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    Stock went down?

    I have questions for my friend.

    So my friend bought VYNE for $400 recently. The stock went down and he hit a negative balance. My friend has an E-Trade account. He used his own money to buy the stock; he didn't use borrowed money.

    He said that the stock went down and he lost the $400 and hit a negative balance. How is that possible?

    I invested in crypto so I don't know much about the stock. If the crypto goes down, I only lose the money I invested, not paying extra money because the crypto went down. I either get less money back or 0 if **** hits the fan, but never hitting a negative balance when crypto goes down.

    I sent me this email but I can't tell much from what it provides.

    3 AnswersInvesting2 weeks ago