diff --git a/Arrays/Buy And Sell Stocks 1.cpp b/Arrays/Buy And Sell Stocks 1.cpp
new file mode 100644
index 0000000..fbfa41d
--- /dev/null
+++ b/Arrays/Buy And Sell Stocks 1.cpp	
@@ -0,0 +1,13 @@
+int maxProfit(vector<int>& prices) {
+        int n = prices.size();
+        if(n == 0 || n == 1)
+            return 0;
+        int mini = prices[0];
+        int ans = 0;
+        for(int i = 1;i<n;i++)
+        {
+            ans = max(ans, prices[i] - mini);
+            mini = min(mini, prices[i]);
+        }
+        return ans;
+    }
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