摘要：Source Determine the number of bits required to convert integer A to integer B Example Given n = 31, m = 14,return 2 (31)10=(11111)2 (14)10=(01110)2 题 阅读全文

摘要：Source Using O(1) time to check whether an integer n is a power of 2. Example For n=4, return true; For n=5, return false; Challenge O(1) time 题解 咋看起来 阅读全文