text: The worst case runtime of Floyd's algorithm is a cubic function based on the number of these objects in the input.
full_question: The worst case runtime of Floyd's algorithm is a cubic function based on the number of these objects in the input. An articulation type of one of these things creates at least one new component and is more commonly called the "cut" type of these things. One of Karp's 21 problems involves finding the minimum number of these things that form a cover. An alternative to the Bellman-Ford algorithm repeatedly checks to see if a new (*) distance to one of these things is less than the best known distance. The cities in the NP-Hard traveling salesman problem generalize to these mathematical constructs. The shortest path between all of these things is found by Dijkstra's algorithm. For 10 points, name these structural elements of a graph that are connected by edges.
first_sentence: The worst case runtime of Floyd's algorithm is a cubic function based on the number of these objects in the input.
raw_answer:  vertices [or vertex; or nodes; or points