例句: Jane wants to go to Shenzhen. Bob wants to go to Shanghai. 一、词袋模型 将所有词语装进一个袋子里,不考虑其词法和语序的问题,即每个词语都是独立的。例如上面2个例句,就可以构成一个词袋,袋子里包括Jane、wants、to、go、Sh ...
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其他好文 时间:
2019-06-05 12:41:03
阅读次数:
371
lc273 Integer to English Words 分析英文的计数规则,1000一个循环,thousand,million,billion,trillion,所以我们可以每1000处理一次,后面加上相应的thousand或是million… 然后再看1000以内规则: hundred一档, ...
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其他好文 时间:
2019-06-05 09:25:52
阅读次数:
70
Given a non-empty string s and a dictionary wordDict containing a list of non-empty words, determine if s can be segmented into a space-separated sequ ...
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其他好文 时间:
2019-05-30 17:28:19
阅读次数:
103
72. Edit Distance 0. 参考文献 | 序号 | 文献 | | | | | 1 | "LeetCode 72. Edit Distance 最短字符串编辑距离 动态规划" | 1.题目 Given two words word1 and word2 , find the minimu ...
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其他好文 时间:
2019-05-26 17:48:50
阅读次数:
96
Given two words (beginWord and endWord), and a dictionary's word list, find all shortest transformation sequence(s) from beginWord to endWord, such th ...
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其他好文 时间:
2019-05-26 09:45:18
阅读次数:
99
You have a list of and a , and you want to know which words in matches the pattern. A word matches the pattern if there exists a permutation of letter ...
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其他好文 时间:
2019-05-24 22:28:27
阅读次数:
120
Given two words word1 and word2, find the minimum number of operations required to convert word1 to word2. You have the following 3 operations permitt ...
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编程语言 时间:
2019-05-23 18:21:34
阅读次数:
95
127. Word Ladder Given two words (beginWord and endWord), and a dictionary's word list, find the length of shortest transformation sequence from begin ...
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Web程序 时间:
2019-05-23 00:13:45
阅读次数:
147
126. Word Ladder II Given two words (beginWord and endWord), and a dictionary's word list, find all shortest transformation sequence(s) from beginWord ...
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Web程序 时间:
2019-05-22 23:52:20
阅读次数:
315
Given an input string, reverse the string word by word. My idea:删除左右两边空格,转换成数组,再把中间空格给改了,再专成字符串,用快慢指针找到单词放进去,很麻烦,所以效果不好。 执行用时 : 92 ms, 在Reverse Words ...
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其他好文 时间:
2019-05-11 17:46:11
阅读次数:
91