leetcode11.盛水最多的容器

 双指针问题，指向前后边界，每次只移动高度较小的那个

class Solution {
public:int maxArea(vector<int>& height) {int leftIndex=0,rightIndex=height.size()-1;int result=0;while(leftIndex<rightIndex){result=max(result,(rightIndex-leftIndex)*min(height[leftIndex],height[rightIndex]));height[leftIndex]<height[rightIndex]?leftIndex++:rightIndex--;}return result;}
};