题解 | #买卖股票的最好时机#

package main

/**
  * 
  * @param prices int整型一维数组 
  * @return int整型
*/
func maxProfit( prices []int ) int {
	// write code here
	min := prices[0]
	max := 0
	for _, d := range prices {
		min = Min(min, d)
		max = Max(max, d - min)
	}
	return max
}

func Max(x, y int) int {
	if x > y {
		return x
	}
	return y
}
func Min(x, y int) int {
	if x < y {
		return x
	}
	return y
}