I have tested and even checked in Notebook and it’s showing that
All tests passed! If you made your solution in a different cell, make sure to include it in the graded cell as well.
All checks are ok! If you passed all unittests, your submission is likely to pass the autograder.'
BUT the result is failed and I just get all 0.
shortest_path function
Filename: shortest_path function Score: 0 of 25
tsp_small_graph function
Filename: tsp_small_graph function Score: 0 of 25
tsp_large_graph function
Filename: tsp_large_graph function Score: 0 of 25
tsp_medium_graph function
Filename: tsp_medium_graph function Score: 0 of 25
Failed test case: Failed to find the optimal solution for path between nodes 654 and 114 in a graph. To replicate the graph, you may run generate_graph(graph = GraphShortestPath, nodes = 1000, edges = 100, seed = 42), index = 0.
Expected:
31,
but got:
None."
How can I fix it?