class Solution {
public:
int maxProfit(vector<int>& prices) {
int size = prices.size();
int buy1 = -prices[0];
int sell1 = 0;
int buy2 = -prices[0];
int sell2 = 0;
for (int i = 0; i < size; ++i) {
buy1 = std::max(buy1, -prices[i]);
sell1 = std::max(sell1, buy1 + prices[i]);
buy2 = std::max(buy2, sell1 - prices[i]);
sell2 = std::max(sell2, buy2 + prices[i]);
}
return sell2;
}
};
原文地址:https://blog.csdn.net/N_BenBird/article/details/135468196
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