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11. 盛最多水的容器 #7

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webVueBlog opened this issue Sep 2, 2022 · 0 comments
Open

11. 盛最多水的容器 #7

webVueBlog opened this issue Sep 2, 2022 · 0 comments

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@webVueBlog
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11. 盛最多水的容器

Description

Difficulty: 中等

Related Topics: 贪心, 数组, 双指针

给定一个长度为 n 的整数数组 height 。有 n 条垂线,第 i 条线的两个端点是 (i, 0) 和 (i, height[i]) 。

找出其中的两条线,使得它们与 x 轴共同构成的容器可以容纳最多的水。

返回容器可以储存的最大水量。

**说明:**你不能倾斜容器。

示例 1:

输入:[1,8,6,2,5,4,8,3,7]
输出:49 
解释:图中垂直线代表输入数组 [1,8,6,2,5,4,8,3,7]。在此情况下,容器能够容纳水(表示为蓝色部分)的最大值为 49。

示例 2:

输入:height = [1,1]
输出:1

提示:

  • n == height.length
  • 2 <= n <= 105
  • 0 <= height[i] <= 104

Solution

Language: JavaScript

/**
 * @param {number[]} height
 * @return {number}
 */
var maxArea = function(height) {
    let [l, r, ans] = [0, height.length - 1, 0]

    while (l < r) {
        let [hl, hr] = [height[l], height[r]]
        ans = Math.max(ans, Math.min(hl, hr) * (r - l))

        hl < hr ? l++ : r--
    }
    return ans
}
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