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###### tags: `Leetcode`

# 122. Best Time to Buy and Sell Stock II

###### Link : https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/description/

## 題目
找到最大獲利(最多同時買一項，但可在同一天賣掉並馬上買)
## 程式碼

class Solution {
public:
    int maxProfit(vector<int>& prices) {
        int buy = prices[0], profit = 0;
        for(int i = 0;i < prices.size();++i){
            if(prices[i] > buy){
                profit += prices[i] - buy;
                buy = prices[i];
            }
            buy = min(buy, prices[i]);
        }
        return profit;
    }
};