Unable to understand this

#1

I am not able to understand this method and it is not working in codeblocks, I dont know why

#2

@Parikalp10 what method? share your code so that i can check

#3


this is not working on codeblocks

#4

@Parikalp10 try selecting c++ 14 gnu compiler in settings of code blocks it will work then

#5

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