class Solution { public: /** * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 * * * @param prices int整型vector * @return int整型 */ int maxProfit(vector<int>& prices) { int ans = 0; for (int i = 0, minProfits = INT_MAX; i < prices.size(); i++) { ans = max(ans, prices[i] - minProfits); minProfits = min(minProfits, prices[i]); } return ans; } };