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「THUPC 2017」sum | Trisolaris's Blog #92

Open Marcythm opened 5 years ago

Marcythm commented 5 years ago

https://blog.trisolaris.top/%E3%80%8Cthupc-2017%E3%80%8Dsum/

Problem Description 给定一个长为 n 的数列 {a{n}} ,定义数列 f : f{k} = \sum{i = 1}^{n} a{i}^{k} \pmod{998244353}