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add visited array

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onyx-and-iris 2024-01-11 18:47:35 +00:00
parent ecf623c2c4
commit 10914ee208
1 changed files with 6 additions and 0 deletions
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6
chapter6/ex6.1.py
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@ -21,6 +21,8 @@ graph = {
"f": [],
}
visited = []
def bfs():
queue = deque()
@ -32,6 +34,10 @@ def bfs():
if current_node.name == "f":
return current_node.distance
if current_node.name in visited:
continue
visited.append(current_node.name)
next_nodes = graph[current_node.name]
for node in next_nodes:
node.distance = current_node.distance + 1