From CNN’s Jamie Ehrlich:“In the letter sent Tuesday, Arizona Republican John McCain and Delaware Democrat Chris Coons urged the withdrawal of Ronald Mortensen's nomination to the position of assistant secretary of state for population, refugees and migration. …‘We are deeply concerned about ...
In the dual graph, the number of edges ending in a given vertex is called the degree of the vertex and is equal to the number of country borders that on the original map cor- respond to that vertex. The circuit of the graph is called a path of edges, which has a be- ginning and...