👉 In computer science, a "topology" is a type of graph whose vertices are nodes and edges connect them. A topological sort is a sorting algorithm that sorts the nodes in a directed graph based on their incoming edge weights. The term "tops" refers to the topology of a topological sort, which can be defined as follows: 1. The first node has two outgoing edges. 2. The second node has three outgoing edges. 3. The third node has four outgoing edges.