给出旅行商问题的python代码,代码包含路径输出
时间: 2023-06-09 07:05:04 浏览: 77
当然,我可以为您提供一个解决旅行商问题的 Python 代码,并且可以输出最短路径。以下是一个示例代码:
```
import numpy as np
from itertools import permutations
def travel_salesman_problem(matrix):
# 创建所有城市组合
cities = list(range(len(matrix)))
city_combinations = permutations(cities)
# 获取每个城市序列的总距离
min_distance = np.inf
min_path = None
for city_sequence in city_combinations:
distance = 0
for i in range(len(city_sequence) - 1):
start_city = city_sequence[i]
end_city = city_sequence[i+1]
distance += matrix[start_city][end_city]
# 如果当前序列的总距离小于当前最小值,则将其更新为最小值
if distance < min_distance:
min_distance = distance
min_path = city_sequence
# 输出最短路径和总距离
print("最短路径为:{}".format(min_path))
print("总距离为:{}".format(min_distance))
# 输入城市间的距离矩阵
city_distance_matrix = [[0, 10, 15, 20],
[10, 0, 35, 25],
[15, 35, 0, 30],
[20, 25, 30, 0]]
# 解决旅行商问题
travel_salesman_problem(city_distance_matrix)
```
请注意,这只是一个旅行商问题解决方案的示例,您可以输入不同的距离矩阵来找到其他城市的最短路径。