108. Best Time to Buy and Sell Stock

EasyArray

You are given an array prices where prices[i] is the price of a given stock on the ith day. You want to maximize your profit by choosing a single day to buy one stock and choosing a different day in the future to sell that stock. Return the maximum profit you can achieve from this transaction. If you cannot achieve any profit, return 0.

Examples

Input: [7,1,5,3,6,4]

Output: 5

Explanation: Public test case for Best Time to Buy and Sell Stock

Constraints

  • 1 <= prices.length <= 10^5
  • 0 <= prices[i] <= 10^4
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