已解答
中等
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给你一个字符串数组 words
,找出并返回 length(words[i]) * length(words[j])
的最大值,并且这两个单词不含有公共字母。如果不存在这样的两个单词,返回 0
。
示例 1:
输入:words = ["abcw","baz","foo","bar","xtfn","abcdef"]
输出:16
解释:这两个单词为"abcw", "xtfn"。
示例 2:
输入:words = ["a","ab","abc","d","cd","bcd","abcd"]
输出:4
解释:这两个单词为 "ab", "cd"。
示例 3:
输入:words = ["a","aa","aaa","aaaa"]
输出:0
解释:不存在这样的两个单词。
提示:
2 <= words.length <= 1000
1 <= words[i].length <= 1000
words[i]
仅包含小写字母
python
python
class Solution(object):
def maxProduct(self, words):
"""
:type words: List[str]
:rtype: int
"""
lists = {}
for i in words:
lists[i] = [len(i), set(list(i))]
ans = 0
lens = len(words)
for i in range(lens):
si=lists[words[i]]
for j in range(i + 1, lens):
sj=lists[words[j]]
if not si[1].intersection(sj[1]) and si[0] * sj[0] > ans:
ans = si[0] * sj[0]
return ans