121_Best Time to Buy and Sell Stock

/*Runtime: 1 ms, faster than 99.38% of Java online submissions for Best Time to Buy and Sell Stock.
Memory Usage: 39.2 MB, less than 91.01% of Java online submissions for Best Time to Buy and Sell Stock.*/

class Solution {
    public int maxProfit(int[] prices) {
        int min=Integer.MAX_VALUE,profit=0;
        
        for(int i:prices)
        {  min=Math.min(min,i);  //minimum price of stock
            profit=Math.max(profit,i-min);  // maximum profit in stock
        }
        
        return profit;
    }
}