Container With Most Water

https://leetcode.com/problems/container-with-most-water/

暴力求解

class Solution {

    /**
     * @param Integer[] $height
     * @return Integer
     */
    function maxArea($height) {
        $max = 0;
        foreach ($height as $i => $h) {
            foreach ($height as $j => $k) {
                if ($j <= $i) {
                    continue;
                }

                $x   = $j - $i;
                $y   = min($h, $k);
                $vol = $x * $y;
                $max = $max < $vol ? $vol : $max;
            }
        }
        return $max;
    }
}

数学证明的最优解：https://blog.csdn.net/kid551/article/details/83094787