Confusion in "Shortest Road Trip"

#1

In this lecture ,i do not understand why we write that " ch!=’\n’ " .please tell the meaning of this line.Why we use this and what is the purpose of that?

#2

Hi
It basically means you have to process each character of the input string say “NESSE” till the time ‘\n’ is encountered. Stop as soon as you encounter ‘\n’(nextline)

#3

Thank you very much for solving my doubt…