[HackerEarth] To improve the participation in the IndiaHacks 2016, its organizers have planned a word of mouth advertising campaign. The organizers have identified a target audience of size N and want - 题解

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题号 P18215
标题 [HackerEarth] To improve the participation in the IndiaHacks 2016, its organizers have planned a word of mouth advertising campaign. The organizers have identified a target audience of size N and want
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