Could not understand query function

#1

I was unable to understand the solution therefore I saw a code available on the discussion page. https://ide.codingblocks.com/s/142906?_ga=2.184033573.2020332823.1601006043-1571137155.1594707214 . But could not figure out how the return statement of the query function is working. Please help me out for this.

#2

hello @ayusdas2000
if number formed by left node is a and right node is b
then overall number will be ab right?
which is
a * pow( 2, number of digits in right node which is en-mid) + b // shifting a by en-mid position and then adding b to it

#3

i tried the problem and coded it myself, but it is giving all output 0. https://ide.codingblocks.com/s/241307

#4

@ayusdas2000
u can ask new doubt for ur code issue. TA who have solved this problem before will help u.

#5

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#6

Please anyone help me with this question