Power of two
Print YES if N is a power of two (1, 2, 4, 8, …), otherwise NO.
Reported in: Infosys (2022–25) (memory-based)
Input
One line: N.
Output
YES or NO.
Constraints
1 ≤ N ≤ 10^18.
Example 1
Input:
64
Output:
YESExample 2
Input:
96
Output:
NOHint: A power of two has exactly one set bit: N & (N − 1) is 0.