2020年1月4日
[LC] 429. N-ary Tree Level Order Traversal
摘要： Given an n-ary tree, return the level order traversal of its nodes' values. Nary-Tree input serialization is represented in their level order traversa 阅读全文
posted @ 2020-01-04 12:56 xuan_abc 阅读(151) 评论(0) 推荐(0)
[LC] 572. Subtree of Another Tree
摘要： Given two non-empty binary trees s and t, check whether tree t has exactly the same structure and node values with a subtree of s. A subtree of s is a 阅读全文
posted @ 2020-01-04 12:40 xuan_abc 阅读(85) 评论(0) 推荐(0)
[LC] 404. Sum of Left Leaves
摘要： Find the sum of all left leaves in a given binary tree. Example: 3 / \ 9 20 / \ 15 7 There are two left leaves in the binary tree, with values 9 and 1 阅读全文
posted @ 2020-01-04 12:21 xuan_abc 阅读(61) 评论(0) 推荐(0)