00:01
Okay, here we have a multi -graph and i want to work out, first of all, number of vertices.
00:08
That's right, straightforward.
00:10
What we do is look at the dots.
00:12
We have one here, two, three, four, five.
00:19
A, b, c, d, e are the vertices.
00:25
First one then, the answer is five.
00:34
Now edges just count up the lines in between all the various vertices.
00:41
So what we have, one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, separate lines.
00:57
Edges will be thirteen.
01:07
Now, next they want the in degree and out degree for each vertex.
01:14
Let's start with a...