Please have a look at this :
http://www.careercup.com/question?id=14433699&utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+Careercup+%28CareerCup%29

What does inplace shifting imply here? Cant i keep 2 pointers and overwrite
a non space character onto a space character and advance both pointers till
one again hits a space character and other a non-space character? Does that
violate the condition given in the question?

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