122. Best Time to Buy and Sell Stock II

• java

class Solution {
    public int maxProfit(int[] prices) {
        if(prices.length<2)
            return 0;
        int sum = 0;
        for(int i=1;i<prices.length;i++){
            if(prices[i]>prices[i-1])
                sum += prices[i] - prices[i-1];
        }
        return sum;
    }
}