https://oi-wiki.org/math/permutation-group/
https://www.hankcs.com/program/algorithm/poj-1286-of-beads-necklace.html
https://blog.csdn.net/u013486414/article/details/47041881
https://blog.csdn.net/winddreams/article/details/47101343
发布时间：2020年01月12日 阅读：232 次
https://oi-wiki.org/math/permutation-group/
https://www.hankcs.com/program/algorithm/poj-1286-of-beads-necklace.html
https://blog.csdn.net/u013486414/article/details/47041881
https://blog.csdn.net/winddreams/article/details/47101343