java 是我想错了吗,这道题没有那么麻烦啊
股票交易的最大收益
http://www.nowcoder.com/questionTerminal/9e5e3c2603064829b0a0bbfca10594e9
数组后一个减去前一个,为正数就加起来
public class Solution { public int maxProfit (int[] prices) { int sum = 0; for (int i = 1; i < prices.length; i++) { int profit = prices[i] - prices[i-1]; if (profit > 0) { sum += profit; } } return sum; } }