121. Best time to buy and sell stock

//121. Best time to buy and sell stock

class Solution {
    public int maxProfit(int[] prices) {
        int profit = 0;
        int minPrice = prices[0];

        for(int i = 0; i < prices.length ; i++) {
            minPrice = Math.min(prices[i], minPrice);
            profit = Math.max(profit, prices[i] - minPrice);
        }

        return profit;
    }
}