cyaron
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Allow users to define functions that shuffle vertex and edge sets
允许用户自定义打乱点集和边集的函数(仅在 shuffle 为真时被调用)
方便只打乱点或边,也可以获取某个点被打乱后映射到的位置。
https://github.com/luogu-dev/cyaron/issues/101
to lazy, can't move
你顺手把test写了吧