3954. Sum of Compatible Numbers in Range I

You are given two integers n and k.

A positive integer x is called compatible if it satisfies both of the following conditions:

• abs(n - x) <= k
• (n & x) == 0

Return the sum of all compatible integers x.

Note:

• Here, & denotes the bitwise AND operator.
• The absolute difference between integers i and j is defined as abs(i - j).

Example 1:

Example 2:

Constraints:

• 1 <= n <= 100
• 1 <= k <= 100