Given two non-negative integers a and b. The problem is to check if one of the two numbers is 1’s complement of the other. 
The ones’ complement of a binary number is defined as the value obtained by inverting all the bits in the binary representation of the number (swapping 0s for 1s and vice versa).

Examples:

Input : a = 10, b = 5
Output : Yes
(10)10 = (1010)2
1's complement of 10 is
= (0101)2 = (101)2 = (5)10

Check if one of the numbers is one’s complement of the other  : https://www.geeksforgeeks.org/check-one-numbers-ones-complement/