<p>我有一个解决方案,它需要一个相当多的重构,但它似乎工作,
我希望这有帮助,这是一个相当有趣的问题。你知道吗</p>
<pre><code>import itertools
import re
from collections import deque
def solution(search_words, search_string):
found = deque()
for search_word in search_words:
found.append([(m.start()) for m in re.compile(search_word).finditer(search_string)])
if len(found) != len(search_words) or len(found) == 0:
return [] # no search words or not all words found
word_positions_lst = [list(i) for i in itertools.product(*found) if sorted(list(i)) == list(i)]
ret_lst = []
for word_positions in word_positions_lst:
split_positions = list(itertools.chain.from_iterable(
(split_position, split_position + len(search_word))
for split_position, search_word in zip(word_positions, search_words)))
last_seach_word = search_string[split_positions[-1]:]
ret_strs = [search_string[a:b] for a, b in zip(split_positions, split_positions[1:])]
if last_seach_word:
ret_strs.append(last_seach_word)
if len(search_string) == sum(map(len,ret_strs)):
ret_lst.append(tuple(ret_strs))
return ret_lst
print(solution(["I like ", " and ", " because ", "do"],
"I like lettuce and carrots and onions because I do"))
print([("I like ", "lettuce", " and ", "carrots and onions", " because ", "I ", "do"),
("I like ", "lettuce and carrots", " and ", "onions", " because ", "I ", "do")])
print()
print(solution(["take ", " to the park"], "take Alice to the park"))
print([("take ", "Alice", " to the park")])
print()
print(solution(["I like ", " because "],
"I don't like cheese because I'm lactose-intolerant"))
print([])
print()
</code></pre>
<p>输出:</p>
<pre><code>[('I like ', 'lettuce', ' and ', 'carrots and onions', ' because ', 'I ', 'do'), ('I like ', 'lettuce and carrots', ' and ', 'onions', ' because ', 'I ', 'do')]
[('I like ', 'lettuce', ' and ', 'carrots and onions', ' because ', 'I ', 'do'), ('I like ', 'lettuce and carrots', ' and ', 'onions', ' because ', 'I ', 'do')]
[('take ', 'Alice', ' to the park')]
[('take ', 'Alice', ' to the park')]
[]
[]
[('I', ' ', 'want', ' my sandwich ', 'or', ' I want my pizza or salad ', 'done'), ('I', ' ', 'want', ' my sandwich or I want my pizza ', 'or', ' salad ', 'done'), ('I', ' want my sandwich or I ', 'want', ' my pizza ', 'or', ' salad ', 'done')]
[('I', ' ', 'want', ' my sandwich ', 'or', ' I want my pizza or salad ', 'done'), ('I', ' ', 'want', ' my sandwich or I want my pizza ', 'or', ' salad ', 'done'), ('I', ' want my sandwich or I', 'want', ' my pizza ', 'or', ' salad ', 'done')]
</code></pre>
<p><em>编辑:重构代码以获得有意义的变量名。</em></p>
<p>添加了我忘记的最后一个案例。</em></p>