Hey please check my code iam getting error

#1


please explain clearly about the error

#2

@dbhavanishankar89 hey bhavani I have removed error now try to work with your logic now come to this error why this is come the reason behind it the end is also declared inside the one of stl library in c++ and some time compiler is confused.
bug free code

#3


please help me my code is not passing testcases.
What cases my code fails??
Explain well!