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Q2 solution submit by Haris Jamal Khan#8
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I have used two pointers by giving the first pointer (fast) a head start before starting the second pointer (slow). Doing this will cause slow to reach the n'th node from the end at the same time that fast reaches the end.
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I have used two pointers by giving the first pointer (fast) a head start before starting the second pointer (slow). Doing this will cause slow to reach the n'th node from the end at the same time that fast reaches the end.