java.lang.Object
g0101_0200.s0121_best_time_to_buy_and_sell_stock.Solution

public class Solution extends Object
121 - Best Time to Buy and Sell Stock\. Easy 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`. **Example 1:** **Input:** prices = [7,1,5,3,6,4] **Output:** 5 **Explanation:** Buy on day 2 (price = 1) and sell on day 5 (price = 6), profit = 6-1 = 5. Note that buying on day 2 and selling on day 1 is not allowed because you must buy before you sell. **Example 2:** **Input:** prices = [7,6,4,3,1] **Output:** 0 **Explanation:** In this case, no transactions are done and the max profit = 0. **Constraints:** * 1 <= prices.length <= 105 * 0 <= prices[i] <= 104
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • maxProfit

      public int maxProfit(int[] prices)