Complete, Beats 11% runtime, beats 42% memory

Top150Interview/122BestTimetoBuyandSellStock2.py

@@ -3,17 +3,17 @@ def maxProfit(prices):
         :type prices: List[int]
         :rtype: int
         """
-        lowest = min(prices)
-        if lowest == prices[len(prices)-1]:
-            print('no profit')
-            return 0
+        profit = 0
         for i in range(len(prices)):
-            if lowest == prices[i]:
-                k = i+1
-                # print(f'k is {k}')
-                profit = max(prices[k:]) - lowest
-                print(profit)
-                return profit
+            # print(i)
+            if i+1 == len(prices):
+                break
+            if prices[i] < prices[i+1]:
+                # print(i)
+                # print('hit')
+                profit += prices[i+1] - prices[i]
+                # print(profit)
+        return profit
 
 maxProfit([7,1,5,3,6,4]) 
 # maxProfit([7,6,4,3,1])