[HackerEarth] Little RK's birthday is coming soon. All of his friends has already decided what they will do for the grand celebration of their friend's birthday. The decoration part of party room is t - 题解

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题号 P17739
标题 [HackerEarth] Little RK's birthday is coming soon. All of his friends has already decided what they will do for the grand celebration of their friend's birthday. The decoration part of party room is t
难度 普及
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