diff --git a/BuySellStock2.java b/BuySellStock2.java
new file mode 100644
index 0000000..56ff8da
--- /dev/null
+++ b/BuySellStock2.java
@@ -0,0 +1,16 @@
+/**
+ * Time Complexity:  O(n)  where n is the length of prices
+ * Space Complexity: O(1)
+ */
+class Solution {
+    public int maxProfit(int[] prices) {
+        int result = 0;
+        for(int i=0; i<prices.length-1; i++){
+            if(prices[i+1] > prices[i]){
+                result += prices[i+1] - prices[i];
+            }
+        }
+        return result;
+
+    }
+}
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