Stock Buy and Sell – Multiple Transaction Allowed

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