线性筛求约数个数

xingyu published on 2021-01-20 included in Algorithm

写欧拉计划第十二题的时候，求约数个数，暴力实在太慢，顺便写篇博客记录一下高效方法

改编自：　https://blog.csdn.net/ControlBear/article/details/77527115

Project_Euler_刷题 10 ～ 20

xingyu published on 2021-01-19 included in Algorithm

会随着刷题不断更新。。。。

前面的没想着要写笔记，就没有存下代码，故从Problem11来记录代码

全由Python实现。 10～20题

xingyu published on 2021-01-18 included in Algorithm

因为参加*CTF，鸽了两天的算法。

day 06

xingyu published on 2021-01-15 included in Algorithm

day05 ，比2017那道题复杂了许多

xingyu published on 2021-01-14 included in Algorithm

day 04

简单二叉树的应用

xingyu published on 2021-01-13 included in Algorithm

2019_Fibonacci数列与黄金分割

2019_初赛数列求值

day03