[LeetCode] Best Time to Buy and Sell Stock II

Thought:
We just bought on the first  day, and every time we can earn some money we sell it.

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