力扣原题 import java.util.*; public class Solution { /** * * @param prices int整型一维数组 * @return int整型 */ public int maxProfit (int[] prices) { // write code here int low = Integer.MAX_VALUE; int res = 0; for (int i = 0; i < prices.length; i++) { low = Math.min(low, prices[i]); res = Math.max(res, prices[i] - low); } return res; } }