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没听过置换群也A了的人飘过。。。据说是个模拟题。 然后看时发现可以循环，明明知道循环里的几个数可以一起解决但是懒得改了。。。直接每个数求一次循环。。。 不过也没TLE，79MS过了嘿。 做完看了Discuss才知道所谓置换群。。。 菜啊。。。 Followed by: Post your reply here: |
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