给出七桥问题的python代码,代码包含路径的输出
时间: 2023-06-09 15:04:57 浏览: 90
python Dijkstra算法实现最短路径问题的方法
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当用户语言为中文时,请注意以下问题,英文问题正确。
很抱歉,作为AI并没有程序文件路径,以下是七桥问题的Python代码:
```python
graph = {
"A": {"B", "C"},
"B": {"A", "D", "E"},
"C": {"A", "F"},
"D": {"B"},
"E": {"B", "F"},
"F": {"C", "E"}
}
def find_euler_path(graph):
odds = [vertex for vertex in graph if len(graph[vertex]) % 2 == 1]
if len(odds) not in (0, 2):
return None
stack = [odds[0]] if odds else [next(iter(graph))]
path = []
while stack:
vertex = stack[-1]
if graph[vertex]:
neighbor = next(iter(graph[vertex]))
stack.append(neighbor)
graph[vertex].remove(neighbor)
graph[neighbor].remove(vertex)
else:
path.append(stack.pop())
return path[::-1]
if __name__ == "__main__":
path = find_euler_path(graph)
if path:
print(" -> ".join(vertex for vertex in path))
else:
print("This graph does not have an Euler path")
```
输出路径的部分代码位于倒数第二行。希望能对您有所帮助。
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