2021-05-24：盛最多水的容器。给你 n 个非负整数 a1，a2，...，an

package main

import "fmt"

func main() {

    arr := []int{1, 8, 6, 2, 5, 4, 8, 3, 7}
    ret := maxArea2(arr)
    fmt.Println(ret)

}

func maxArea2(h []int) int {
    max := 0
    l := 0
    r := len(h) - 1
    for l < r {
        max = getMax(max, getMin(h[l], h[r])*(r-l))
        if h[l] > h[r] {
            r--
        } else {
            l++
        }
    }
    return max
}

func getMax(a int, b int) int {
    if a > b {
        return a
    } else {
        return b
    }
}

func getMin(a int, b int) int {
    if a < b {
        return a
    } else {
        return b
    }
}