https://leetcode.com/problems/single-number-iii/description/

https://www.geeksforgeeks.org/next-higher-number-with-same-number-of-set-bits/

https://www.geeksforgeeks.org/problems/power-set4302/1

https://leetcode.com/problems/triples-with-bitwise-and-equal-to-zero/

https://www.geeksforgeeks.org/find-two-missing-numbers-set-2-xor-based-solution/