Create best-time-to-buy-and-sell-stock-with-transaction-fee.cpp

Author: kamyu104

C++/best-time-to-buy-and-sell-stock-with-transaction-fee.cpp

@@ -0,0 +1,14 @@
+// Time:  O(n)
+// Space: O(1)
+
+class Solution {
+public:
+    int maxProfit(vector<int>& prices, int fee) {
+        int cash = 0, hold = -prices[0];
+        for (int i = 1; i < prices.size(); ++i) {
+            cash = max(cash, hold + prices[i] - fee);
+            hold = max(hold, cash - prices[i]);
+        }
+        return cash;
+    }
+};