[组合] 2n个点在圆周上，连$n^2+1$条线，至少n个三角形

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realnumber posted 2014-3-1 21:18 |Read mode

Last edited by realnumber 2014-3-19 20:09郑-- 20:41:46

2n个点在圆周上，连$n^2+1$条线，至少n个三角形（顶点是2n点中某三点）。
-----不会.
也可以先证明n=4情景.

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2025-7-23 16:58 GMT+8

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