Output is coming as 4768 but it should be 6478 ! i think the problem is with my build function. if we use the build_2 function, then root will become 4. but in explanation section the root is 5. so how will we construct a build function

#1
#2

yes your build function is incorrect

see the modified code for correct one

Modified Code

#3

i got the logic. but only sample test is passed remaining are still wrong

#4

cout<<endl;
add this line after printing the pre ordertraversal

output of every testcase should be in new line

if you have more doubts regarding this feel free to ask
i hope this helps
if yes hit a like and don’t forgot to mark doubt as resolved :grinning:

#5

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