About

Algorithms // Data Structures, C // C++ // Python // Ruby //JavaScript // PHP // Calculus // Algebra.

• http://thinkphp.github.io

• https://github.com/thinkphp

• http://thinkphp.it

By the way, here is list of educational resources you might find useful:

• C Programming Language: Dennis Ritchie, Brian Kernighan

• Coders at Work: Reflections on the Craft of Programming

• The art of computing programming: Donalt Knuth

• Introduction to Algorithms: Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, Clifford Stein

• Algorithms: Robert Sedgewick, Kevin Wayne

• Computer Science: An Interdisciplinary Approach

• Introduction to Programming Contests

• The Definitive C++ Book Guide and List

• How does one prepare for the IOI

• Cracking the Coding Interview: 150 Programming Questions and Solutions

• Programming Pearls: Jon Bently

• Competitive Programming: Steven Halim

• CSES Problem Set

• Sphere Online Judge (SPOJ)

• USACO Training Program Gateway

• Codeforce Programming Contests

• Advent of code