[LeetCode] 231. Power of Two - 문제풀이
Description 주어진수가 2의 제곱에 포함되는지 여부를 반환하는 문제입니다. Given an integer n, return true if it is a power of two. Otherwise, return false. An integer n is a power of two, if there exists an integer x such that n == 2x. Example 1: Input: n = 1 Output: true Explanation:2^0 = 1 Example 2: Input: n = 16 Output: true Explanation:2^4 = 16 Example 3: Input: n = 3 Output: false Constraints: -2^31 0010000 n-1 > 11..
