1 run time error

#1
#2

@Pranav_Chaudhary hey pranav can you please tell me what the reason of making a store preorder function?

#3

Incase more than 1 test case, to print output of each test case seperately

#4

@Pranav_Chaudhary hey pranav but there is no such need of this function. you can also do without this function