Best Time to Buy and Sell Stock.txt

class Solution {
public:
    int maxProfit(vector<int> &prices) {
        // Start typing your C/C++ solution below
        // DO NOT write int main() function
        int ret = 0, miv = INT_MAX;
        for (int i = 0; i < prices.size(); i++) {
            miv = min(prices[i], miv);
            ret = max(ret, prices[i] - miv);
        }
        return ret;
    }
};