Best Time to Buy and Sell Stock II

class Solution {
public:
    int maxProfit(vector<int>& prices) {
        ios::sync_with_stdio(false);cin.tie(0);
        int ans=0;
        for(int i=1;i<prices.size();i++){
            if(prices[i] - prices[i-1] >= 0)
                ans += prices[i] - prices[i-1];
        }
        return ans;
    }
};