class Solution {
public:
    /**
     * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
     *
     * 
     * @param height int整型vector 
     * @return int整型
     */
    int maxArea(vector<int>& height) {
      if (height.size() < 2) {
        return 0;
      }
      
      int res = 0;
      int left = 0, right = height.size() - 1;
      
      while (left < right) {
        int size = (right - left) * std::min(height[left], height[right]);
        res = std::max(res, size);
        
        //  每次更新下限要大于等于原来的水平
        height[left] < height[right] ? ++left : --right;
      }
      
      return res;
    }
};