Move All X at End

#1

Hi I am unable to do to question.

#2

So , Basically the string in JAva are passed by value, use a string builder instead,\

Also there has to 2 stringbuilers one to mantain those which are not ‘x’ other where x are appened
Then in the main function append the x`s string to non x string

#3

u could even do it with 2 pointer
It would be O(N) without recursion

BUT note that use a StringBuilder instead of String since String are immutable.

Incase u are still stuck up with the code fell free to ask

#4

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