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 and n is at least 2.
O(N^2)超时,典型贪心,一步步左右向中间贪心即可。O(N)
public class Solution { public int maxArea(int[] height) { int Max = 0; int area = 0; int l = 0; int r = height.length-1; while(l!=r) { int t = Math.min(height[l], height[r]); area = t * (r - l); Max = Math.max(Max, area); if (height[l] < height[r]) { l++; } else { r--; } } return Max; } }