diff --git a/Buy and Sell Stock/README.md b/Buy and Sell Stock/README.md
new file mode 100644
index 0000000..b21172f
--- /dev/null
+++ b/Buy and Sell Stock/README.md	
@@ -0,0 +1,29 @@
+```
+class Solution {
+public:
+    int maxProfit(vector<int>& prices) {
+     
+        int i, j, k, min = INT_MAX;
+        int max = 0;
+        k = prices.size();
+        if(k==0)
+        {
+            return 0;
+        }
+        int sum;
+        for(i=0; i<k; i++)
+        {
+            if(prices[i]<min)
+            {
+                min = prices[i];
+            }
+            else if(prices[i]-min>max)
+            {
+                max = prices[i]-min;
+            }
+        }
+        
+        return max;
+    }
+};
+```