👉 In mathematics, an "ondagram" is a special kind of graph that has some interesting properties. Specifically, it's defined as: 1. A graph G with vertex set V and edge set E (where each edge connects two different vertices). 2. If there exists a subset S of E such that the complement of S contains exactly one pair of vertices from V. 3. The number of edges in this graph is equal to the number of vertices minus 1. So, an ond
