## [luogu P4213] [template] Sum (Mathematics) (division and blocking)

[template] Sum
Title Link: luogu P4213
General idea of the topic
Please φ Prefix and sum of functions μ Prefix and of the function.
(Euler function and Mobius function respectively)
thinking
Pre knowledge
Integral function: for two coprime numbers \ (x,y \), \ (f(xy)=f(x)f(y) \), then \ (f \) is an integral function.
Complete integral ...

Posted on *Tue, 02 Nov 2021 15:43:57 -0400* by **zmoerf**

## Algorithmic Base Part 2-Divide

Algorithmic Part Base 2
1. Examples of algorithms
_This chapter mainly studies the knowledge of division and division, because it is the most basic binary search and check sorting, followed by in-depth study. These algorithms need to be made very clear, backwards like flow, have been studied before, but there is no record, this time look agai ...

Posted on *Sat, 11 Sep 2021 15:51:15 -0400* by **Rustywolf**