摘要：
84. Largest Rectangle in Histogram（直方图最大面积 hard） 42. Trapping Rain Water(直方图 存水量 hard) 11. Container With Most Water(装最多的水 双指针) 阅读全文
摘要：
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 endpo 阅读全文