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 node 阅读全文
摘要：
Given two sets of integers, the similarity of the sets is defined to be Nc/Nt 100%, where Nc is the number of distinct common numbers shared by the tw 阅读全文
摘要：
About 900 years ago, a Chinese philosopher Sima Guang wrote a history book in which he talked about people's talent and virtue. According to his theor 阅读全文
摘要：
Sherlock Holmes received a note with some strange strings: "Let's date! 3485djDkxh4hhGE 2984akDfkkkkggEdsb s&hgsfdk d&Hyscvnm". It took him only a min 阅读全文
摘要：
If a machine can save only 3 significant digits, the float numbers 12300 and 12358.9 are considered equal since they are both saved as 0.123 105 with 阅读全文
摘要：
Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p1^k1 p2^k2 … pm^km. Input Specifica 阅读全文
摘要：
If you are a fan of Harry Potter, you would know the world of magic has its own currency system as Hagrid explained it to Harry, "Seventeen silver Sic 阅读全文