BuySellStock2.cpp

class Solution {
public:
    int maxProfit(vector<int>& prices) {
        int n =prices.size(); 
        if(n==0) return 0;
        int sum = 0;
        for(int i = 0; i<n-1;i++){
            if(prices[i+1] - prices[i] >0) 
                 sum+=prices[i+1] - prices[i];
        }
        return sum;
        
    }
};