better solution of Best Time To Buy And Sell Stock II

Author: P-ppc

algorithms/BestTimeToBuyAndSellStockII/README.md

@@ -28,5 +28,23 @@ class Solution(object):
         if max_price > holder:
             max_profit += max_price - holder
 
+        return max_profit
+```
+or like below:
+```python
+class Solution(object):
+    def maxProfit(self, prices):
+        """
+        :type prices: List[int]
+        :rtype: int
+        """
+        if len(prices) == 0:
+            return 0
+        
+        max_profit = 0
+        for i in xrange(1, len(prices)):
+            if prices[i] > prices[i - 1]:
+                max_profit += prices[i] - prices[i - 1]
+            
         return max_profit
 ```