diff --git a/best_time_to_buy_and_sell_stock.cpp b/best_time_to_buy_and_sell_stock.cpp
new file mode 100644
index 0000000..fc5f588
--- /dev/null
+++ b/best_time_to_buy_and_sell_stock.cpp
@@ -0,0 +1,12 @@
+class Solution {
+public:
+    int maxProfit(vector<int>& prices) {
+        int maxPro = 0;
+        int minPrice = INT_MAX;
+        for(int i=0; i<prices.size(); i++){
+            minPrice = min(minPrice, prices[i]);
+            maxPro = max(maxPro, prices[i]-minPrice);
+        }
+        return maxPro;
+    }
+};