Tell us what’s happening:
im just kinda lost on what to do here. i think i formatted it right but it keeps me the message “You should use the dictionary comprehension syntax to give a value to your distances variable.”
Your code so far
my_graph = {
'A': [('B', 3), ('D', 1)],
'B': [('A', 3), ('C', 4)],
'C': [('B', 4), ('D', 7)],
'D': [('A', 1), ('C', 7)]
}
# User Editable Region
def shortest_path(graph, start):
unvisited = list(graph)
distances = {node: 0 if start else float('inf') for node in graph}
paths = {node: [] for node in graph}
print(f'Unvisited: {unvisited}\nDistances: {distances}')
shortest_path(my_graph, 'A')
# User Editable Region
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Challenge Information:
Learn Algorithm Design by Building a Shortest Path Algorithm - Step 35