Charlie's Playground

[Note] KMP Algorithms

KMP algorithms learning note.

[Note] Sieve of Eratosthenes

The algorithm to find the number of prime number.

Tmux Note

Record some useful shortcuts of tmux.

[Note] Check a Number Is Multiple of Three or Not

Check number if multiple of three in O(1).

[Note] Modular Arithmetic

Clarify the modular arithmetic. Include modular multiplicative inverse.

Google Drive Downloaded Files Merge

How to deal with the multiple zip files downloaded from Google Drive.

[Note] Boyer-Moore Majority Voting

Boyer-Moore majority voting algorithms to find the candidate who gets more than 1/3 votes.

[Note] Binary Search

Main idea of binary search and some common scenarios with c++ code.

[Note] Heap and Heap Sort

Write some notes when I reviewed the heap sort.

WebRTC Tutorial

The tutorial for the beginner to learn the Web RTC and build a simple website with Web RTC.