122. 买卖股票的最佳时机 II
class Solution {
public int maxProfit(int[] prices) {
int maxPro = 0, tmp = 0;
for (int i = 1; i < prices.length; ++i) {
tmp = prices[i] - prices[i-1];
if (tmp > 0)
maxPro += tmp;
}
return maxPro;
}
}