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.
You may not slant the container.
Given [1,3,2], the max area of the container is 2.
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[LintCode] Container With Most Water 装最多水的容器
原文：http://www.cnblogs.com/grandyang/p/6115984.html