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「BZOJ 4916」神犇和蒟蒻-ExtendedEratosthenesSieve | xehoth #318

Open xehoth opened 6 years ago

xehoth commented 6 years ago

https://blog.xehoth.cc/BZOJ4916/

求 $A = \sum\limits{i = 1} ^ n \mu(i ^ 2), B = \sum\limits{i = 1} ^ n \varphi(i ^ 2)$