Best Time to Buy and Sell Stock - LeetCode 121

best_time_to_buy_and_sell_stock.go

func maxProfit(prices []int) int {
    var max int
    l, r := 0, 1
    
    for r < len(prices) {
        if prices[l] < prices[r] {
            max = int(math.Max(float64(max), float64(prices[r]-prices[l])))
        } else {
            l = r
        }
        r++
    }
    
    return max
}