摘要： A family hierarchy is usually presented by a pedigree tree. Your job is to count those family members who have no child. Input Specification: The inpu 阅读全文

摘要： We have a network of computers and a list of bi-directional connections. Each of these connections allows a file transfer from one computer to another 阅读全文

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