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Stock Max Profit
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Stock Max Profit

MediumPython

Problem

Find the maximum profit from buying and selling a stock given an array of prices.

Given prices, where prices[i] is the stock price on day i, return the maximum profit possible from buying once and selling once later. If no profitable transaction exists, return 0.

The function must accept a list of integers and return an integer. The sale must occur after the purchase.

Function

def max_profit(prices):

Constraints

  • 1 <= prices.length <= 10^5
  • 0 <= prices[i] <= 10^4
  • At most one purchase and one sale are allowed
  • The sale must occur after the purchase

Function Signature

def max_profit(prices):
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