本目录不包括GSS Query系列，关于GSS系列会单独开一个目录来更新
除部分题目缺少数论基础待补外，基本全部更新了。目录附带简单题意和讲解，具体思路和代码参考对应的博客。
1.CF240F TorCoder
2.CF242E XOR on Segment
3.CF343D Water Tree
4.CF383C Propagating tree
5.CF414C Mashmokh and Reverse Operation
6.CF431E Chemistry Experiment
7.CF438D The Child and Sequence
8.CF446C DZY Loves Fibonacci Numbers
9.CF490F Treeland Tour
10.CF515E Drazil and Park
11.CF522D Closest Equals
12.CF558E A Simple Task
13.CF594D REQ
14.CF600E Lomsat gelral
15.CF620E New Year Tree
16.CF718C Sasha and Array
17.CF739C Alyona and towers
18.CF786B Legacy
19.CF803G Periodic RMQ Problem
20.CF817F MEX Queries
21.CF840D Destiny
22.CF877E Danil and a Part-time Job
23.CF911G Mass Change Queries
24.CF915E Physical Education Lessons
25.CF992E Nastya and King-Shamans
26.CF1000F One Occurrence
27.CF1004F Sonya and Bitwise OR
28.CF1114F Please, another Queries on Array?
29.CF1149C Tree Generator™
30.CF1422F Boring Queries
