摘要：
Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime factors are in the given prime list primes 阅读全文
摘要：
17.11 Implement a method rand7() given rand5(). That is, given a method that generates a random number between 0 and 4 (inclusive), write a method tha 阅读全文
摘要：
17.10 Since XML is very verbose, you are given a way of encoding it where each tag gets mapped to a pre-defined integer value. The language/grammar is 阅读全文
