Given a number N, complete the following tasks,
Task 1. Generate a new number from N by changing the zeroes in the binary representation of N to 1.
Task 2. Find the difference between N and the newly generated number.
Example 1:
Input:N = 8
Output: 7 15
Explanation:
There are 3 zeroes in binary representation
of 8. Changing them to 1 will give 15.
Difference between these two is 7.
Example 2:
Input:N = 6
Output: 1 7
Explanation:
There is 1 zero in binary representation
of 6. Changing it to 1 will give 7.
Difference between these two is 1.
Your Task:
You don't need to read input or print anything. Your task is to complete the function changeBits() which takes an integer N as input parameter and returns a list of two integers containing the difference and the generated number respectively.
Expected Time Complexity: O(log(N)) Expected Auxiliary Space: O(1)
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Avoid using static/global variables in coding problems as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the
correctness of code. On submission, your code is tested against multiple test cases
consisting of all possible corner cases and stress constraints.
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