The problem asks for a way to determine whether there is a route between two nodes in a directed graph. One example is given, where the nodes are connected in a linear fashion. The solution should work for more general cases as well.

A.I. Evaluation of the Solution

The candidate's solution is complete and solves the problem. The candidate has used a breadth-first search approach, which is a good choice for this problem.

Evaluated at: 2022-12-08 10:15:46