A walk has Closed property if ____________
A. v0=vk
B. v0>=vk
C. v < 0
D. vk > 1
The question was asked in an interview for internship.
The question is from Different Path in a Graph in portion Graphs of Discrete Mathematics
Right answer is A. v0=vk
Explanation: A walk in a graph is said to be closed if the starting vertex is the same as the ending vertex, that is v0=vk, it is described as Open otherwise.