Best Time to Buy and Sell Stock II

 1 class Solution
 2 {
 3 public:
 4   int maxProfit(vector<int> prices)
 5   {
 6     if(prices.empty())
 7       return 0;
 8 
 9     int profit = 0;
10     for(int i=1; i<prices.size(); i++)
11       if(prices[i] > prices[i-1])
12         profit += prices[i] - prices[i-1];
13 
14     return profit;
15   }
16 };