[HackerEarth] Ma5termind is having his birthday this weekend. Yeah !! You all are invited . Ma5termind wants to send an invitation to those groups of people which he finds interesting. A group of N pe - 题解

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题号 P14042
标题 [HackerEarth] Ma5termind is having his birthday this weekend. Yeah !! You all are invited . Ma5termind wants to send an invitation to those groups of people which he finds interesting. A group of N pe
难度 普及-
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