我知道itertools,但它似乎只能生成排列而不重复。
例如,我想为2个骰子生成所有可能的骰子卷。所以我需要[1,2,3,4,5,6]的大小为2的所有排列,包括重复:(1,1),(1,2),(2,1)...等。
发布于 2018-06-13 14:58:24
import itertools
x = [1, 2, 3, 4, 5, 6]
[p for p in itertools.product(x, repeat=2)]
[(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6), (2, 1), (2, 2), (2, 3),
(2, 4), (2, 5), (2, 6), (3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6),
(4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6), (5, 1), (5, 2), (5, 3),
(5, 4), (5, 5), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)]
要获得随机:
import random
random.choice([p for p in itertools.product(x, repeat=2)])
(6, 3)
发布于 2018-06-13 15:26:55
def permutate(a_list):
import itertools
return set(list(itertools.permutations(a_list)))
https://stackoverflow.com/questions/-100005363
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