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All topics›JavaScript›Arrays & strings

Best Time to Buy and Sell Stock

beginnerlayer B2 · Arrays & strings5 tests

prices[i] is the price of a stock on day i. You may buy on one day and sell on a later day, at most once. Return the largest profit you can make.

  • If no transaction is profitable, return 0
  • You cannot sell before you buy
  • An empty array yields 0

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