QUEUES (problem in output

#1

Please tell me why I am getting an error .

#2

Hello @G_rahil,

You are getting compilation error:
source.cpp:48:9: error: ‘isEmpty’ was not declared in this scope
48 | while(!isEmpty()){
Reason:
You cannot access the class members directly outside the class.
Solution:
q.isEmpty()

Hope, this would help.

#3

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