container-with-max-area.js

/*
You are given an integer array height of length n. There are n vertical lines drawn such that the two endpoints of the ith line are (i, 0) and (i, height[i]).

Find two lines that together with the x-axis form a container, such that the container contains the most water.

Return the maximum amount of water a container can store.

Notice that you may not slant the container.

 

Example 1:

Input: height = [1,8,6,2,5,4,8,3,7]
Output: 49
Explanation: The above vertical lines are represented by array [1,8,6,2,5,4,8,3,7]. In this case, the max area of water (blue section) the container can contain is 49.

Example 2:

Input: height = [1,1]
Output: 1

*/

var maxArea = function (height) {
	let maxArea = 0;
	let l = 0;
	let r = height.length - 1;

	while (l < r) {
		let area = (r - l) * Math.min(height[l], height[r]);
		maxArea = Math.max(area, maxArea);

		if (height[l] < height[r]) {
			l += 1;
		} else if (height[l] >= height[r]) {
			r -= 1;
		}
	}

	return maxArea;
};