csacademy.com的 10 大竞争对手

codeforces.com

codeforces. programming competitions and contests, programming community

usaco.guide

OS-specific instructions for installing and running C++ via the command line.

vjudge.net

Article [Bug反馈专用贴 (Bugs feedback)] in Virtual Judge

visualgo.net

visualgo was conceptualised in 2011 by dr steven halim as a tool to help his students better understand data structures and algorithms, by allowing them to learn the basics on their own and at their own pace. together with his students from the national university of singapore, a series of visualizations were developed and consolidated, from simple sorting algorithms to complex graph data structures. though specifically designed for the use of nus students taking various data structure and algorithm classes (cs1010/equivalent, cs2040/equivalent, cs3230, cs3233, and cs4234), as advocators of online learning, we hope that curious minds around the world will find these visualizations useful as well.

geogebra.org

Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more

desmos.com

desmos offers best-in-class calculators, digital math activities, and curriculum to help every student love math and love learning math.

yworks.com

Free diagram visualization extension for JupyterLab and Jupyter Notebook.

graphy.app

Learn why data storytelling is the key to making your charts drive action. See real-world examples of how transforming raw graphs into clear, compelling narratives leads to better decisions and business impact.

rawgraphs.io

A free and open source tool for data visualization.