Best time to buy or sell stock.cpp

class Solution {
public:
    int maxProfit(vector<int>& prices) {
        
        int max_profit=0;
        int min_price=prices[0];
        for(int i=1;i<prices.size();i++){
            max_profit=max(max_profit,prices[i]-min_price);
            min_price=min(prices[i],min_price);
        }
        
        return max_profit;
    }
};