Q3.1 TO: vertices 1--4

Give the first four vertices of the topological ordering as a string without separators. Your answer should be a string consisting of four of the letters from a-p without separators. For instance, if you think that the the first four vertices of the topological ordering are i, j, k, and l, then your answer should be ijkl.

Q3.2 TO: vertices 5--8

Give the next four vertices of the topological ordering as a string without separators.

Q3.3 TO: vertices 9--12

Give the next four vertices of the topological ordering as a string without separators.

Q3.4 TO: vertices 13--16

Give the next four vertices of the topological ordering as a string without separators.

7 Points Execute the topological sort algorithm provided in the lecture on the following directed graph. If there is a choice handle vertices in alphabetic order