Thank you

when n == 0 you are returning a string literal that cannot be passed to free(). only heap-allocated pointers can be passed to free(), this is why your function crashes.

in Java, the function you have to write is a variadic function: it takes a varying number of parameters. Research how variadic functions work in Java

you print the result instead of returning it

One of your branches still does not return anything.

I did that but no result.

because you need to return the value, not print it

my code works fine on other IDE but in the code warroiors enviroment it says incorrect output why this happnes ,FYI I use JS.

test your solving on small samples.

It is not a valid kata suggestion.