I very enjoyed Nisiyama_Suzune's tutorials on Mobius inversion and Dirchlet convolution.

http://mirror.codeforces.com/blog/entry/53925

http://mirror.codeforces.com/blog/entry/54150

And this good tutorials:

C++ Tricks

A short guide to suffix automata

Fast convolution for 64-bit integers

Tutorial on FFT/NTT—The tough made simple.(Part 1)

Tutorial on FFT/NTT — The tough made simple.(Part 2)

http://mirror.codeforces.com/blog/entry/13529

A recent SQRT-tree tutorial

Mo's Algorithm on Trees

http://mirror.codeforces.com/blog/entry/44351

Almost every blog written by adamant.

DSU On Tree

Dynamic Programming Optimizations

this.

Although I have almost all tutorials in Favourites, it's better to have them sorted in one place like this.

Counting Divisors of a Number

Nearest Neighbor Search by P_Nyagolov

I think you could add "How to sweep like a Sir" tutorial by DanAlex: http://mirror.codeforces.com/blog/entry/20377

You can add this one too:

http://mirror.codeforces.com/blog/entry/57212

(A little self-advertisement)

Some time ago I wrote geometry tutorials:
Geometry: 2D points and lines [Tutorial]
Geometry: Polygon algorithms

Also, it would be better to organize the list by topic.

I think it would be better to classify 'Convex Hull trick and Li chao tree by adamant' as DP rather than geometry, although it takes inspiration from geometric concepts and data structures.

Introduction to New Data Structure: Wavelet Trees by rachitiitr

hi,

here is my help :)

i think most of them are useful for the beginning of learning they're algo ...

btw, they're here :

http://mirror.codeforces.com/blog/entry/21189 for matrix

http://mirror.codeforces.com/blog/entry/58894 it's a little introduction to mitm

http://mirror.codeforces.com/blog/entry/12239 for HLD

http://mirror.codeforces.com/blog/entry/45578 for parallel bin.search

http://mirror.codeforces.com/blog/entry/43230 for MO on tree

Number of Solutions to a Linear Algebraic Equation

Easy implementation of Compressed 2D BIT for grid of binary numbers

This is a good one, https://mirror.codeforces.com/blog/entry/68138

I made a blog on the following topics:

Matrix Exponentiation

Finding Derangements(If possible) of an array

These have got decent upvotes so I believe they are useful.

dsu on trees

hope it help to learn dsu on trees :)

Auto comment: topic has been updated by vaibhav1997 (previous revision, new revision, compare).

Perhaps you could add this https://mirror.codeforces.com/blog/entry/77298

Can you add some centroid decomposition blogs?

Adding few more to the list

• [Tutorial] Reachability Tree / DSU-tree
• Hybrid Tutorial #-1: Heavy-Light Decomposition
• Hybrid Tutorial #-2: Centroid Decomposition
• A problem collection of ODE and differential technique
• [Tutorial] Generating Functions in Competitive Programming (Part 1)
• [Tutorial] Generating Functions in Competitive Programming (Part 2)
• Tutorial on Permutation Tree (析合树）

I think this one should be added too: Geometry shrink trick

this post by in Data Structure's section — https://mirror.codeforces.com/blog/entry/53168 was a prank please remove it from the Data Structure section

vaibhav1997 could you kindly fix the bug in the blog.

Auto comment: topic has been updated by vaibhav1997 (previous revision, new revision, compare).

Thank You Sir

Thank you.

Awesome.