11. Container With Most Water

Given n non-negative integers a1, a2, …, an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a container, such that the container contains the most water.

Note: You may not slant the container.

hint 两根指针

code

public class ContainerWithMostWater {    public int maxArea(int[] height) {        if (height == null || height.length < 2) {            return 0;        }        int max = 0, left = 0;        int right = height.length - 1;        while (left < right) {            max = Math.max(max,                    (right - left) * (Math.min(height[left], height[right])));            if (height[left] < height[right]) {                left++;            } else {                right--;            }        }        return max;    }}