2020年5月10日
1043 Is It a Binary Search Tree
摘要： A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes 阅读全文
posted @ 2020-05-10 23:30 Veritas_des_Liberty 阅读(145) 评论(0) 推荐(0)
1044 Shopping in Mars
摘要： Shopping in Mars is quite a different experience. The Mars people pay by chained diamonds. Each diamond has a value (in Mars dollars M$). When making 阅读全文
posted @ 2020-05-10 22:09 Veritas_des_Liberty 阅读(180) 评论(0) 推荐(0)
1443. Minimum Time to Collect All Apples in a Tree
摘要： Given an undirected tree consisting of n vertices numbered from 0 to n-1, which has some apples in their vertices. You spend 1 second to walk over one 阅读全文
posted @ 2020-05-10 18:05 Veritas_des_Liberty 阅读(350) 评论(0) 推荐(0)