Stay is a programming learning website focused on the visualization of data structures and algorithms. By converting code into vivid and smooth animations, it helps learners understand complex principles of data structures and algorithms more intuitively. Its main advantages are strong interactivity and clear visualization effects, which can effectively enhance learning efficiency. This product is primarily aimed at programming beginners and developers, helping them master knowledge of data structures and algorithms. Pricing is not yet specified, and it is positioned as a tool for assisting programming learning.