当初的面试官，是有数开发者的梦魇，可能吊打面试官的属实不多，因为大部分面试官真的有那么那几下子。但在面试中，咱们这些小生存者不能全盘否定只能单点冲破—从某个问题上让面试官眼前一亮。这不，明天就来分享来了。

A prime number is an integer greater than one and is divisible by one and itself only. The sequence of prime numbers starts with 2, 3, 5, 7, 11, 13, 17, 19, … You may check out the first 1,000 pr…

Given two integers L and R, find the count of numbers in the range [L, R] (inclusive) having a prime number of set bits in their binary representation.