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判断旋转对称、算法有关

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帮人发帖 posted 2019-5-5 02:22 |Read mode
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realnumber posted 2019-5-5 22:43
Last edited by realnumber 2019-5-6 13:11默认是圆周上等分点?依次用序号标记1,2,3,...,弦用一组序号标记?

如果这样,依次每个数据+1(意思是旋转一格),碰到不重合(说明不是这个方向转一格中心对称),试+2,试+3,直到试完或找到,
优化,数据规模是n,其实只需要试n的因数+k就可以(0.5n≥k≥1,应该不用试-k).

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