42. Trapping Rain Water (Array，stack; DP)
摘要：
Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. 阅读全文
posted @ 2015-10-09 12:02 joannae 阅读(238) 评论(0) 推荐(0)
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