2020年5月6日
Leetcode983 Minimum Cost For Tickets
摘要： Description "Problem" In a country popular for train travel, you have planned some train travelling one year in advance. The days of the year that you 阅读全文
posted @ 2020-05-06 22:44 飞翔的菜鸟123 阅读(130) 评论(0) 推荐(0)
PAT1123 Is It a Complete AVL Tree
摘要： 1123 Is It a Complete AVL Tree (30分) "题目链接" 存一个模板，以后背这个 阅读全文
posted @ 2020-05-06 18:07 飞翔的菜鸟123 阅读(167) 评论(0) 推荐(0)
Leetcode98 Validate Binary Search Tree
摘要： Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows: The left subtree of a node contains only 阅读全文
posted @ 2020-05-06 18:07 飞翔的菜鸟123 阅读(131) 评论(0) 推荐(0)