1 wrong answer testcase

#1

https://hack.codingblocks.com/contests/c/537/475?_ga=2.128065932.1661448070.1550406484-1721200315.1546842346
code
https://ide.codingblocks.com/s/56807

#2

Make a dispaly function and check your build tree function. Algo is correct

#3

unable to debug in build function…
help here please…

#4

help here please…

#5

Hi Gaurav, your buildPre() function was not correct. I’ve corrected it and you can refer to it here https://ide.codingblocks.com/s/60511.

#6

thank you…