baihacker's github
recent posts
- 30 Apr 2022 A summation trick
- 01 Jan 2022 The comparison between two black algorithm implementations
- 09 Feb 2021 Count free tree with constraints
- 12 Apr 2020 The prefix-sum of multiplicative function: the black algorithm
- 12 Apr 2020 The prefix-sum of multiplicative function: Dirichlet convolution
- 07 Apr 2020 The prefix-sum of multiplicative function: powerful number sieve
- 07 Apr 2020 Comments on two counting formulas
- 18 Apr 2015 Solution to GCJ2015 R1A
- 11 Apr 2015 Solution to GCJ2015 QR
- 26 Apr 2014 Solution to GCJ2014 R1A
- 14 Apr 2014 Solution to GCJ2014 QR
- 04 Apr 2014 About me