Error in code for question Query bits

Hi, I cannot find any error in my code. It seems to work fine for all the test cases locally. Here is the link to my code: http://p.ip.fi/L3As
Any help would be appreciated.

@wandan23
Your code seems fine
Might be a small issue that i am unable to catch
Please verify your approach with this correct solution https://ide.codingblocks.com/s/220847

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