package 第01期.mca_test; //leetcode 122 public class Code02_BestTimeToBuyAndSellStockII { public static int maxProfit(int[] prices) { if (prices == null || prices.length == 0) { return 0; } int ans = 0; for (int i = 1; i < prices.length; i++) { ans += Math.max(prices[i] - prices[i-1], 0); } return ans; } }