It is constructively proved that the two classes of felicitous big lobster trees are felicitous tree.

本文给出了一类大龙虾树为幸福树的构造性证明。

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It is constructively proved that the two classes of felicitous big lobster trees are felicitous tree.

本文给出了一类大龙虾树为幸福树的构造性证明。

youdao