Recommendation systems are information filtering systems designed to suggest potentially interesting content to users based on their preferences and behavioral data. From product recommendations on e-commerce websites to personalized playlists on streaming platforms, recommendation systems have perm ... More >>

DFS(Depth first search)The following is a concrete example to understand. As shown in the figure, in a nine-box diagram, the green position represents the starting position, the red position represents the end position, the gray area and the border of the box diagram represents this road is not avai ... More >>