122. Best Time to Buy and Sell Stock II.java

class Solution {
    public int maxProfit(int[] prices) {
        
        int sell = 0;
        int buy = 0;
        int profit = 0;
        for(int i = 1; i < prices.length; i++)
        {
           if(prices[i] >= prices[i-1])
               sell++;
            else
            {
                profit += prices[sell]-prices[buy];
                buy = sell = i;
            }
        }
        profit += prices[sell]-prices[buy];
        return profit;
        
    }
}