2017 年 9月 26 日随笔档案 - hejunlin

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2017年9月26日

[Leetcode] 96. Unique Binary Search Trees

摘要： Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example,Given n = 3, there are a total of 5 unique BST' 阅读全文

posted @ 2017-09-26 13:10 hejunlin 阅读(155) 评论(0) 推荐(0)

[Leetcode] 91. Decode Ways

摘要： A message containing letters from A-Z is being encoded to numbers using the following mapping: Given an encoded message containing digits, determine t 阅读全文

posted @ 2017-09-26 01:10 hejunlin 阅读(242) 评论(0) 推荐(0)