Best Time to Buy and Sell Stock with Transaction Fee LeetCode solution in C++

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class Solution {
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 public:
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  int maxProfit(vector<int> &prices, int fee) {
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    int buy = INT_MIN;
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    int sell = 0;
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    for (int price : prices) {
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      buy = max(buy, sell - price);
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      sell = max(sell, buy + price - fee);
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    }
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    return sell;
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  }
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};