Leetcode——42. Trapping Rain Water

题目 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. 样例 输入:[0,1,0,2,1,0,1,3,2,1,2,1] 答案:6(蓝色部分) 题意
相关文章
相关标签/搜索