摘要：
题目描述 You are playing the following Bulls and Cows game with your friend: You write down a number and ask your friend to guess what the number is. Each 阅读全文
摘要：
题目描述 Serialization is the process of converting a data structure or object into a sequence of bits so that it can be stored in a file or memory buffer 阅读全文
摘要：
题目描述 Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of th 阅读全文