2019年10月23日
[LC] 114. Flatten Binary Tree to Linked List
摘要： Given a binary tree, flatten it to a linked list in-place. For example, given the following tree: 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look 阅读全文
posted @ 2019-10-23 10:54 xuan_abc 阅读(106) 评论(0) 推荐(0)
[LC] 121. Best Time to Buy and Sell Stock
摘要： Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction 阅读全文
posted @ 2019-10-23 09:52 xuan_abc 阅读(115) 评论(0) 推荐(0)