Rakuten Interview Question: How to reverse a string without using extra memory?

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How to reverse a string without using extra memory?

Anonymous

Mar 6, 2014

I have never heard of it before that time. I think there are some answers on the web about it

Anonymous

Jun 23, 2015

Print recursively..

Anonymous

Oct 24, 2016

public void reverse(char s[]){ for(int i=0,j=s.length-1;i<=j;i++,j--){ s[i] ^= s[j]; s[i] ^= (s[j] ^= s[i]); } }