Problem 1004 P0 && P1 of {0, 2, ..., n - 1}

yuzhou627 | 2014-08-31 19:53:13Author
Please forgive me, I may have OCD.
admin | 2014-08-31 19:54:00# 1
RE: P0 && P1 of {0, 2, ..., n - 1}
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