摘要：
题目： Given a sequence a[1],a[2],a[3]……a[n], your job is to calculate the max sum of a sub-sequence. For example, given (6,-1,5,4,-7), the max sum in th 阅读全文
摘要：
题目： Marsha and Bill own a collection of marbles. They want to split the collection among themselves so that both receive an equal share of the marbles 阅读全文