摘要：
House Robber III House Robber III The thief has found himself a new place for his thievery again. There is only one entrance to this area, called the 阅读全文
摘要：
Counting Bits Counting Bits Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1's in their 阅读全文